BREAKING_CHANGE(routing): refactor route configuration to support multiple targets

certs/static-route/meta.json

@@ -1,5 +1,5 @@
 {
-  "expiryDate": "2025-09-21T08:37:03.077Z",
+  "expiryDate": "2025-10-18T13:15:48.916Z",
-  "issueDate": "2025-06-23T08:37:03.077Z",
+  "issueDate": "2025-07-20T13:15:48.916Z",
-  "savedAt": "2025-06-23T08:37:03.078Z"
+  "savedAt": "2025-07-20T13:15:48.916Z"
 }

changelog.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 2025-07-20 - 20.0.0 - BREAKING_CHANGE(routing)
+Refactor route configuration to support multiple targets
+
+- Changed route action configuration from single `target` to `targets` array
+- Enables load balancing and failover capabilities with multiple upstream targets
+- Updated all test files to use new `targets` array syntax
+- Automatic certificate metadata refresh
+
 ## 2025-06-01 - 19.5.19 - fix(smartproxy)
 Fix connection handling and improve route matching edge cases
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartproxy",
-  "version": "19.6.12",
+  "version": "20.0.0",
   "private": false,
   "description": "A powerful proxy package with unified route-based configuration for high traffic management. Features include SSL/TLS support, flexible routing patterns, WebSocket handling, advanced security options, and automatic ACME certificate management.",
   "main": "dist_ts/index.js",

readme.hints.md

@@ -143,3 +143,206 @@ The system supports both receiving and sending PROXY protocol:
 - **Receiving**: Automatically detected from trusted proxy IPs (configured in `proxyIPs`)
 - **Sending**: Enabled per-route or globally via `sendProxyProtocol` setting
 - Real client IP is preserved and used for all connection tracking and security checks
+
+## Metrics and Throughput Calculation
+
+The metrics system tracks throughput using per-second sampling:
+
+1. **Byte Recording**: Bytes are recorded as data flows through connections
+2. **Sampling**: Every second, accumulated bytes are stored as a sample
+3. **Rate Calculation**: Throughput is calculated by summing bytes over a time window
+4. **Per-Route/IP Tracking**: Separate ThroughputTracker instances for each route and IP
+
+Key implementation details:
+- Bytes are recorded in the bidirectional forwarding callbacks
+- The instant() method returns throughput over the last 1 second
+- The recent() method returns throughput over the last 10 seconds
+- Custom windows can be specified for different averaging periods
+
+### Throughput Spikes Issue
+
+There's a fundamental difference between application-layer and network-layer throughput:
+
+**Application Layer (what we measure)**:
+- Bytes are recorded when delivered to/from the application
+- Large chunks can arrive "instantly" due to kernel/Node.js buffering
+- Shows spikes when buffers are flushed (e.g., 20MB in 1 second = 160 Mbit/s)
+
+**Network Layer (what Unifi shows)**:
+- Actual packet flow through the network interface
+- Limited by physical network speed (e.g., 20 Mbit/s)
+- Data transfers over time, not in bursts
+
+The spikes occur because:
+1. Data flows over network at 20 Mbit/s (takes 8 seconds for 20MB)
+2. Kernel/Node.js buffers this incoming data
+3. When buffer is flushed, application receives large chunk at once
+4. We record entire chunk in current second, creating artificial spike
+
+**Potential Solutions**:
+1. Use longer window for "instant" measurements (e.g., 5 seconds instead of 1)
+2. Track socket write backpressure to estimate actual network flow
+3. Implement bandwidth estimation based on connection duration
+4. Accept that application-layer != network-layer throughput
+
+## Connection Limiting
+
+### Per-IP Connection Limits
+- SmartProxy tracks connections per IP address in the SecurityManager
+- Default limit is 100 connections per IP (configurable via `maxConnectionsPerIP`)
+- Connection rate limiting is also enforced (default 300 connections/minute per IP)
+- HttpProxy has been enhanced to also enforce per-IP limits when forwarding from SmartProxy
+
+### Route-Level Connection Limits
+- Routes can define `security.maxConnections` to limit connections per route
+- ConnectionManager tracks connections by route ID using a separate Map
+- Limits are enforced in RouteConnectionHandler before forwarding
+- Connection is tracked when route is matched: `trackConnectionByRoute(routeId, connectionId)`
+
+### HttpProxy Integration
+- When SmartProxy forwards to HttpProxy for TLS termination, it sends a `CLIENT_IP:<ip>\r\n` header
+- HttpProxy parses this header to track the real client IP, not the localhost IP
+- This ensures per-IP limits are enforced even for forwarded connections
+- The header is parsed in the connection handler before any data processing
+
+### Memory Optimization
+- Periodic cleanup runs every 60 seconds to remove:
+  - IPs with no active connections
+  - Expired rate limit timestamps (older than 1 minute)
+- Prevents memory accumulation from many unique IPs over time
+- Cleanup is automatic and runs in background with `unref()` to not keep process alive
+
+### Connection Cleanup Queue
+- Cleanup queue processes connections in batches to prevent overwhelming the system
+- Race condition prevention using `isProcessingCleanup` flag
+- Try-finally block ensures flag is always reset even if errors occur
+- New connections added during processing are queued for next batch
+
+### Important Implementation Notes
+- Always use `NodeJS.Timeout` type instead of `NodeJS.Timer` for interval/timeout references
+- IPv4/IPv6 normalization is handled (e.g., `::ffff:127.0.0.1` and `127.0.0.1` are treated as the same IP)
+- Connection limits are checked before route matching to prevent DoS attacks
+- SharedSecurityManager supports checking route-level limits via optional parameter
+
+## Log Deduplication
+
+To reduce log spam during high-traffic scenarios or attacks, SmartProxy implements log deduplication for repetitive events:
+
+### How It Works
+- Similar log events are batched and aggregated over a 5-second window
+- Instead of logging each event individually, a summary is emitted
+- Events are grouped by type and deduplicated by key (e.g., IP address, reason)
+
+### Deduplicated Event Types
+1. **Connection Rejections** (`connection-rejected`):
+   - Groups by rejection reason (global-limit, route-limit, etc.)
+   - Example: "Rejected 150 connections (reasons: global-limit: 100, route-limit: 50)"
+
+2. **IP Rejections** (`ip-rejected`):
+   - Groups by IP address
+   - Shows top offenders with rejection counts and reasons
+   - Example: "Rejected 500 connections from 10 IPs (top offenders: 192.168.1.100 (200x, rate-limit), ...)"
+
+3. **Connection Cleanups** (`connection-cleanup`):
+   - Groups by cleanup reason (normal, timeout, error, zombie, etc.)
+   - Example: "Cleaned up 250 connections (reasons: normal: 200, timeout: 30, error: 20)"
+
+4. **IP Tracking Cleanup** (`ip-cleanup`):
+   - Summarizes periodic IP cleanup operations
+   - Example: "IP tracking cleanup: removed 50 entries across 5 cleanup cycles"
+
+### Configuration
+- Default flush interval: 5 seconds
+- Maximum batch size: 100 events (triggers immediate flush)
+- Global periodic flush: Every 10 seconds (ensures logs are emitted regularly)
+- Process exit handling: Logs are flushed on SIGINT/SIGTERM
+
+### Benefits
+- Reduces log volume during attacks or high traffic
+- Provides better overview of patterns (e.g., which IPs are attacking)
+- Improves log readability and analysis
+- Prevents log storage overflow
+- Maintains detailed information in aggregated form
+
+### Log Output Examples
+
+Instead of hundreds of individual logs:
+```
+Connection rejected
+Connection rejected
+Connection rejected
+... (repeated 500 times)
+```
+
+You'll see:
+```
+[SUMMARY] Rejected 500 connections from 10 IPs in 5s (rate-limit: 350, per-ip-limit: 150) (top offenders: 192.168.1.100 (200x, rate-limit), 10.0.0.1 (150x, per-ip-limit))
+```
+
+Instead of:
+```
+Connection terminated: ::ffff:127.0.0.1 (client_closed). Active: 266
+Connection terminated: ::ffff:127.0.0.1 (client_closed). Active: 265
+... (repeated 266 times)
+```
+
+You'll see:
+```
+[SUMMARY] 266 HttpProxy connections terminated in 5s (reasons: client_closed: 266, activeConnections: 0)
+```
+
+### Rapid Event Handling
+- During attacks or high-volume scenarios, logs are flushed more frequently
+- If 50+ events occur within 1 second, immediate flush is triggered
+- Prevents memory buildup during flooding attacks
+- Maintains real-time visibility during incidents
+
+## Custom Certificate Provision Function
+
+The `certProvisionFunction` feature has been implemented to allow users to provide their own certificate generation logic.
+
+### Implementation Details
+
+1. **Type Definition**: The function must return `Promise<TSmartProxyCertProvisionObject>` where:
+   - `TSmartProxyCertProvisionObject = plugins.tsclass.network.ICert | 'http01'`
+   - Return `'http01'` to fallback to Let's Encrypt
+   - Return a certificate object for custom certificates
+
+2. **Certificate Manager Changes**:
+   - Added `certProvisionFunction` property to CertificateManager
+   - Modified `provisionAcmeCertificate()` to check custom function first
+   - Custom certificates are stored with source type 'custom'
+   - Expiry date extraction currently defaults to 90 days
+
+3. **Configuration Options**:
+   - `certProvisionFunction`: The custom provision function
+   - `certProvisionFallbackToAcme`: Whether to fallback to ACME on error (default: true)
+
+4. **Usage Example**:
+```typescript
+new SmartProxy({
+  certProvisionFunction: async (domain: string) => {
+    if (domain === 'internal.example.com') {
+      return {
+        cert: customCert,
+        key: customKey,
+        ca: customCA
+      } as unknown as TSmartProxyCertProvisionObject;
+    }
+    return 'http01'; // Use Let's Encrypt
+  },
+  certProvisionFallbackToAcme: true
+})
+```
+
+5. **Testing Notes**:
+   - Type assertions through `unknown` are needed in tests due to strict interface typing
+   - Mock certificate objects work for testing but need proper type casting
+   - The actual certificate parsing for expiry dates would need a proper X.509 parser
+
+### Future Improvements
+
+1. Implement proper certificate expiry date extraction using X.509 parsing
+2. Add support for returning expiry date with custom certificates
+3. Consider adding validation for custom certificate format
+4. Add events/hooks for certificate provisioning lifecycle

readme.md

@@ -2336,14 +2336,117 @@ sequenceDiagram
   • Efficient SNI extraction
   • Minimal overhead routing
 
-## Certificate Hooks & Events
+## Certificate Management
+
+### Custom Certificate Provision Function
+
+SmartProxy supports a custom certificate provision function that allows you to provide your own certificate generation logic while maintaining compatibility with Let's Encrypt:
+
+```typescript
+const proxy = new SmartProxy({
+  certProvisionFunction: async (domain: string): Promise<TSmartProxyCertProvisionObject> => {
+    // Option 1: Return a custom certificate
+    if (domain === 'internal.example.com') {
+      return {
+        cert: customCertPEM,
+        key: customKeyPEM,
+        ca: customCAPEM       // Optional CA chain
+      };
+    }
+    
+    // Option 2: Fallback to Let's Encrypt
+    return 'http01';
+  },
+  
+  // Control fallback behavior when custom provision fails
+  certProvisionFallbackToAcme: true,  // Default: true
+  
+  routes: [...]
+});
+```
+
+**Key Features:**
+- Called for any route with `certificate: 'auto'`
+- Return custom certificate object or `'http01'` to use Let's Encrypt
+- Participates in automatic renewal cycle (checked every 12 hours)
+- Custom certificates stored with source type 'custom' for tracking
+
+**Configuration Options:**
+- `certProvisionFunction`: Async function that receives domain and returns certificate or 'http01'
+- `certProvisionFallbackToAcme`: Whether to fallback to Let's Encrypt if custom provision fails (default: true)
+
+**Advanced Example with Certificate Manager:**
+
+```typescript
+const certManager = new MyCertificateManager();
+
+const proxy = new SmartProxy({
+  certProvisionFunction: async (domain: string) => {
+    try {
+      // Check if we have a custom certificate for this domain
+      if (await certManager.hasCustomCert(domain)) {
+        const cert = await certManager.getCertificate(domain);
+        return {
+          cert: cert.certificate,
+          key: cert.privateKey,
+          ca: cert.chain
+        };
+      }
+      
+      // Use Let's Encrypt for public domains
+      if (domain.endsWith('.example.com')) {
+        return 'http01';
+      }
+      
+      // Generate self-signed for internal domains
+      if (domain.endsWith('.internal')) {
+        const selfSigned = await certManager.generateSelfSigned(domain);
+        return {
+          cert: selfSigned.cert,
+          key: selfSigned.key,
+          ca: ''
+        };
+      }
+      
+      // Default to Let's Encrypt
+      return 'http01';
+    } catch (error) {
+      console.error(`Certificate provision failed for ${domain}:`, error);
+      // Will fallback to Let's Encrypt if certProvisionFallbackToAcme is true
+      throw error;
+    }
+  },
+  
+  certProvisionFallbackToAcme: true,
+  
+  routes: [
+    // Routes that use automatic certificates
+    {
+      match: { ports: 443, domains: ['app.example.com', '*.internal'] },
+      action: {
+        type: 'forward',
+        target: { host: 'localhost', port: 8080 },
+        tls: { mode: 'terminate', certificate: 'auto' }
+      }
+    }
+  ]
+});
+```
+
+### Certificate Events
 
 Listen for certificate events via EventEmitter:
 - **SmartProxy**:
   - `certificate` (domain, publicKey, privateKey, expiryDate, source, isRenewal)
   - Events from CertManager are propagated
 
-Provide a `certProvisionFunction(domain)` in SmartProxy settings to supply static certs or return `'http01'`.
+```typescript
+proxy.on('certificate', (domain, cert, key, expiryDate, source, isRenewal) => {
+  console.log(`Certificate ${isRenewal ? 'renewed' : 'provisioned'} for ${domain}`);
+  console.log(`Source: ${source}`); // 'acme', 'static', or 'custom'
+  console.log(`Expires: ${expiryDate}`);
+});
+```
 
 ## SmartProxy: Common Use Cases
 

readme.plan.md

@@ -1,364 +1,154 @@
-# SmartProxy Metrics Improvement Plan
+# SmartProxy Enhanced Routing Plan
 
-## Overview
+## Goal
+Implement enhanced routing structure with multiple targets per route, sub-matching capabilities, and target-specific overrides to enable more elegant and DRY configurations.
 
-The current `getThroughputRate()` implementation calculates cumulative throughput over a 60-second window rather than providing an actual rate, making metrics misleading for monitoring systems. This plan outlines a comprehensive redesign of the metrics system to provide accurate, time-series based metrics suitable for production monitoring.
+## Key Changes
 
-## 1. Core Issues with Current Implementation
+### 1. Update Route Target Interface
+- Add `match` property to `IRouteTarget` for sub-matching within routes
+- Add target-specific override properties (tls, websocket, loadBalancing, etc.)
+- Add priority field for controlling match order
 
-- **Cumulative vs Rate**: Current method accumulates all bytes from connections in the last minute rather than calculating actual throughput rate
+### 2. Update Route Action Interface
-- **No Time-Series Data**: Cannot track throughput changes over time
+- Remove singular `target` property
-- **Inaccurate Estimates**: Attempting to estimate rates for older connections is fundamentally flawed
+- Use only `targets` array (single target = array with one element)
-- **No Sliding Windows**: Cannot provide different time window views (1s, 10s, 60s, etc.)
+- Maintain backwards compatibility during migration
-- **Limited Granularity**: Only provides a single 60-second view
 
-## 2. Proposed Architecture
+### 3. Implementation Steps
 
-### A. Time-Series Throughput Tracking
+#### Phase 1: Type Updates
+- [x] Update `IRouteTarget` interface in `route-types.ts`
+  - Add `match?: ITargetMatch` property
+  - Add override properties (tls, websocket, etc.)
+  - Add `priority?: number` field
+- [x] Create `ITargetMatch` interface for sub-matching criteria
+- [x] Update `IRouteAction` to use only `targets: IRouteTarget[]`
 
+#### Phase 2: Route Resolution Logic
+- [x] Update route matching logic to handle multiple targets
+- [x] Implement target sub-matching algorithm:
+  1. Sort targets by priority (highest first)
+  2. For each target with a match property, check if request matches
+  3. Use first matching target, or fallback to target without match
+- [x] Ensure target-specific settings override route-level settings
+
+#### Phase 3: Code Migration
+- [x] Find all occurrences of `action.target` and update to use `action.targets`
+- [x] Update route helpers and utilities
+- [x] Update certificate manager to handle multiple targets
+- [x] Update connection handlers
+
+#### Phase 4: Testing
+- [x] Update existing tests to use new format
+- [ ] Add tests for multi-target scenarios
+- [ ] Add tests for sub-matching logic
+- [ ] Add tests for setting overrides
+
+#### Phase 5: Documentation
+- [ ] Update type documentation
+- [ ] Add examples of new routing patterns
+- [ ] Document migration path for existing configs
+
+## Example Configurations
+
+### Before (Current)
 ```typescript
-interface IThroughputSample {
+// Need separate routes for different ports/paths
-  timestamp: number;
+[
-  bytesIn: number;
+  {
-  bytesOut: number;
+    match: { domains: ['api.example.com'], ports: [80] },
-}
+    action: {
-
+      type: 'forward',
-class ThroughputTracker {
+      target: { host: 'backend', port: 8080 },
-  private samples: IThroughputSample[] = [];
+      tls: { mode: 'terminate' }
-  private readonly MAX_SAMPLES = 3600; // 1 hour at 1 sample/second
-  private lastSampleTime: number = 0;
-  private accumulatedBytesIn: number = 0;
-  private accumulatedBytesOut: number = 0;
-  
-  // Called on every data transfer
-  public recordBytes(bytesIn: number, bytesOut: number): void {
-    this.accumulatedBytesIn += bytesIn;
-    this.accumulatedBytesOut += bytesOut;
-  }
-  
-  // Called periodically (every second)
-  public takeSample(): void {
-    const now = Date.now();
-    
-    // Record accumulated bytes since last sample
-    this.samples.push({
-      timestamp: now,
-      bytesIn: this.accumulatedBytesIn,
-      bytesOut: this.accumulatedBytesOut
-    });
-    
-    // Reset accumulators
-    this.accumulatedBytesIn = 0;
-    this.accumulatedBytesOut = 0;
-    
-    // Trim old samples
-    const cutoff = now - 3600000; // 1 hour
-    this.samples = this.samples.filter(s => s.timestamp > cutoff);
-  }
-  
-  // Get rate over specified window
-  public getRate(windowSeconds: number): { bytesInPerSec: number; bytesOutPerSec: number } {
-    const now = Date.now();
-    const windowStart = now - (windowSeconds * 1000);
-    
-    const relevantSamples = this.samples.filter(s => s.timestamp > windowStart);
-    
-    if (relevantSamples.length === 0) {
-      return { bytesInPerSec: 0, bytesOutPerSec: 0 };
     }
+  },
+  {
+    match: { domains: ['api.example.com'], ports: [443] },
+    action: {
+      type: 'forward',
+      target: { host: 'backend', port: 8081 },
+      tls: { mode: 'passthrough' }
+    }
+  }
+]
+```
 
-    const totalBytesIn = relevantSamples.reduce((sum, s) => sum + s.bytesIn, 0);
+### After (Enhanced)
-    const totalBytesOut = relevantSamples.reduce((sum, s) => sum + s.bytesOut, 0);
+```typescript
-    
+// Single route with multiple targets
-    const actualWindow = (now - relevantSamples[0].timestamp) / 1000;
+{
-    
+  match: { domains: ['api.example.com'], ports: [80, 443] },
-    return {
+  action: {
-      bytesInPerSec: Math.round(totalBytesIn / actualWindow),
+    type: 'forward',
-      bytesOutPerSec: Math.round(totalBytesOut / actualWindow)
+    targets: [
-    };
+      {
+        match: { ports: [80] },
+        host: 'backend',
+        port: 8080,
+        tls: { mode: 'terminate' }
+      },
+      {
+        match: { ports: [443] },
+        host: 'backend',
+        port: 8081,
+        tls: { mode: 'passthrough' }
+      }
+    ]
   }
 }
 ```
 
-### B. Connection-Level Byte Tracking
+### Advanced Example
-
 ```typescript
-// In ConnectionRecord, add:
+{
-interface IConnectionRecord {
+  match: { domains: ['app.example.com'], ports: [443] },
-  // ... existing fields ...
+  action: {
-  
+    type: 'forward',
-  // Byte counters with timestamps
+    tls: { mode: 'terminate', certificate: 'auto' }, // Route-level default
-  bytesReceivedHistory: Array<{ timestamp: number; bytes: number }>;
+    websocket: { enabled: true }, // Route-level default
-  bytesSentHistory: Array<{ timestamp: number; bytes: number }>;
+    targets: [
-  
+      {
-  // For efficiency, could use circular buffer
+        match: { path: '/api/v2/*' },
-  lastBytesReceivedUpdate: number;
+        host: 'api-v2',
-  lastBytesSentUpdate: number;
+        port: 8082,
-}
+        priority: 10
-```
+      },
-
+      {
-### C. Enhanced Metrics Interface
+        match: { path: '/api/*', headers: { 'X-Version': 'v1' } },
-
+        host: 'api-v1',
-```typescript
+        port: 8081,
-interface IMetrics {
+        priority: 5
-  // Connection metrics
+      },
-  connections: {
+      {
-    active(): number;
+        match: { path: '/ws/*' },
-    total(): number;
+        host: 'websocket-server',
-    byRoute(): Map<string, number>;
+        port: 8090,
-    byIP(): Map<string, number>;
+        websocket: { 
-    topIPs(limit?: number): Array<{ ip: string; count: number }>;
+          enabled: true,
-  };
+          rewritePath: '/'  // Strip /ws prefix
-  
+        }
-  // Throughput metrics (bytes per second)
+      },
-  throughput: {
+      {
-    instant(): { in: number; out: number };      // Last 1 second
+        // Default target (no match property)
-    recent(): { in: number; out: number };       // Last 10 seconds  
+        host: 'web-backend',
-    average(): { in: number; out: number };      // Last 60 seconds
+        port: 8080
-    custom(seconds: number): { in: number; out: number };
+      }
-    history(seconds: number): Array<{ timestamp: number; in: number; out: number }>;
+    ]
-    byRoute(windowSeconds?: number): Map<string, { in: number; out: number }>;
-    byIP(windowSeconds?: number): Map<string, { in: number; out: number }>;
-  };
-  
-  // Request metrics
-  requests: {
-    perSecond(): number;
-    perMinute(): number;
-    total(): number;
-  };
-  
-  // Cumulative totals
-  totals: {
-    bytesIn(): number;
-    bytesOut(): number;
-    connections(): number;
-  };
-  
-  // Performance metrics
-  percentiles: {
-    connectionDuration(): { p50: number; p95: number; p99: number };
-    bytesTransferred(): { 
-      in: { p50: number; p95: number; p99: number };
-      out: { p50: number; p95: number; p99: number };
-    };
-  };
-}
-```
-
-## 3. Implementation Plan
-
-### Current Status
-- **Phase 1**: ~90% complete (core functionality implemented, tests need fixing)
-- **Phase 2**: ~60% complete (main features done, percentiles pending)
-- **Phase 3**: ~40% complete (basic optimizations in place)
-- **Phase 4**: 0% complete (export formats not started)
-
-### Phase 1: Core Throughput Tracking (Week 1)
-- [x] Implement `ThroughputTracker` class
-- [x] Integrate byte recording into socket data handlers
-- [x] Add periodic sampling (1-second intervals)
-- [x] Update `getThroughputRate()` to use time-series data (replaced with new clean API)
-- [ ] Add unit tests for throughput tracking
-
-### Phase 2: Enhanced Metrics (Week 2)
-- [x] Add configurable time windows (1s, 10s, 60s, 5m, etc.)
-- [ ] Implement percentile calculations
-- [x] Add route-specific and IP-specific throughput tracking
-- [x] Create historical data access methods
-- [ ] Add integration tests
-
-### Phase 3: Performance Optimization (Week 3)
-- [x] Use circular buffers for efficiency
-- [ ] Implement data aggregation for longer time windows
-- [x] Add configurable retention periods
-- [ ] Optimize memory usage
-- [ ] Add performance benchmarks
-
-### Phase 4: Export Formats (Week 4)
-- [ ] Add Prometheus metric format with proper metric types
-- [ ] Add StatsD format support
-- [ ] Add JSON export with metadata
-- [ ] Create OpenMetrics compatibility
-- [ ] Add documentation and examples
-
-## 4. Key Design Decisions
-
-### A. Sampling Strategy
-- **1-second samples** for fine-grained data
-- **Aggregate to 1-minute** for longer retention
-- **Keep 1 hour** of second-level data
-- **Keep 24 hours** of minute-level data
-
-### B. Memory Management
-- **Circular buffers** for fixed memory usage
-- **Configurable retention** periods
-- **Lazy aggregation** for older data
-- **Efficient data structures** (typed arrays for samples)
-
-### C. Performance Considerations
-- **Batch updates** during high throughput
-- **Debounced calculations** for expensive metrics
-- **Cached results** with TTL
-- **Worker thread** option for heavy calculations
-
-## 5. Configuration Options
-
-```typescript
-interface IMetricsConfig {
-  enabled: boolean;
-  
-  // Sampling configuration
-  sampleIntervalMs: number;        // Default: 1000 (1 second)
-  retentionSeconds: number;        // Default: 3600 (1 hour)
-  
-  // Performance tuning
-  enableDetailedTracking: boolean; // Per-connection byte history
-  enablePercentiles: boolean;      // Calculate percentiles
-  cacheResultsMs: number;         // Cache expensive calculations
-  
-  // Export configuration
-  prometheusEnabled: boolean;
-  prometheusPath: string;         // Default: /metrics
-  prometheusPrefix: string;       // Default: smartproxy_
-}
-```
-
-## 6. Example Usage
-
-```typescript
-const proxy = new SmartProxy({
-  metrics: {
-    enabled: true,
-    sampleIntervalMs: 1000,
-    enableDetailedTracking: true
   }
-});
+}
-
-// Get metrics instance
-const metrics = proxy.getMetrics();
-
-// Connection metrics
-console.log(`Active connections: ${metrics.connections.active()}`);
-console.log(`Total connections: ${metrics.connections.total()}`);
-
-// Throughput metrics
-const instant = metrics.throughput.instant();
-console.log(`Current: ${instant.in} bytes/sec in, ${instant.out} bytes/sec out`);
-
-const recent = metrics.throughput.recent();   // Last 10 seconds
-const average = metrics.throughput.average(); // Last 60 seconds
-
-// Custom time window
-const custom = metrics.throughput.custom(30); // Last 30 seconds
-
-// Historical data for graphing
-const history = metrics.throughput.history(300); // Last 5 minutes
-history.forEach(point => {
-  console.log(`${new Date(point.timestamp)}: ${point.in} bytes/sec in, ${point.out} bytes/sec out`);
-});
-
-// Top routes by throughput
-const routeThroughput = metrics.throughput.byRoute(60);
-routeThroughput.forEach((stats, route) => {
-  console.log(`Route ${route}: ${stats.in} bytes/sec in, ${stats.out} bytes/sec out`);
-});
-
-// Request metrics
-console.log(`RPS: ${metrics.requests.perSecond()}`);
-console.log(`RPM: ${metrics.requests.perMinute()}`);
-
-// Totals
-console.log(`Total bytes in: ${metrics.totals.bytesIn()}`);
-console.log(`Total bytes out: ${metrics.totals.bytesOut()}`);
 ```
 
-## 7. Prometheus Export Example
+## Benefits
+1. **DRY Configuration**: No need to duplicate common settings across routes
+2. **Flexibility**: Different backends for different ports/paths within same domain
+3. **Clarity**: All routing for a domain in one place
+4. **Performance**: Single route lookup instead of multiple
+5. **Backwards Compatible**: Can migrate gradually
 
-```
+## Migration Strategy
-# HELP smartproxy_throughput_bytes_per_second Current throughput in bytes per second
+1. Keep support for `target` temporarily with deprecation warning
-# TYPE smartproxy_throughput_bytes_per_second gauge
+2. Auto-convert `target` to `targets: [target]` internally
-smartproxy_throughput_bytes_per_second{direction="in",window="1s"} 1234567
+3. Update documentation with migration examples
-smartproxy_throughput_bytes_per_second{direction="out",window="1s"} 987654
+4. Remove `target` support in next major version
-smartproxy_throughput_bytes_per_second{direction="in",window="10s"} 1134567
-smartproxy_throughput_bytes_per_second{direction="out",window="10s"} 887654
-
-# HELP smartproxy_bytes_total Total bytes transferred
-# TYPE smartproxy_bytes_total counter
-smartproxy_bytes_total{direction="in"} 123456789
-smartproxy_bytes_total{direction="out"} 98765432
-
-# HELP smartproxy_active_connections Current number of active connections
-# TYPE smartproxy_active_connections gauge
-smartproxy_active_connections 42
-
-# HELP smartproxy_connection_duration_seconds Connection duration in seconds
-# TYPE smartproxy_connection_duration_seconds histogram
-smartproxy_connection_duration_seconds_bucket{le="0.1"} 100
-smartproxy_connection_duration_seconds_bucket{le="1"} 500
-smartproxy_connection_duration_seconds_bucket{le="10"} 800
-smartproxy_connection_duration_seconds_bucket{le="+Inf"} 850
-smartproxy_connection_duration_seconds_sum 4250
-smartproxy_connection_duration_seconds_count 850
-```
-
-## 8. Migration Strategy
-
-### Breaking Changes
-- Completely replace the old metrics API with the new clean design
-- Remove all `get*` prefixed methods in favor of grouped properties
-- Use simple `{ in, out }` objects instead of verbose property names
-- Provide clear migration guide in documentation
-
-### Implementation Approach
-1. ✅ Create new `ThroughputTracker` class for time-series data
-2. ✅ Implement new `IMetrics` interface with clean API
-3. ✅ Replace `MetricsCollector` implementation entirely
-4. ✅ Update all references to use new API
-5. ⚠️ Add comprehensive tests for accuracy validation (partial)
-
-### Additional Refactoring Completed
-- Refactored all SmartProxy components to use cleaner dependency pattern
-- Components now receive only `SmartProxy` instance instead of individual dependencies
-- Access to other components via `this.smartProxy.componentName`
-- Significantly simplified constructor signatures across the codebase
-
-## 9. Success Metrics
-
-- **Accuracy**: Throughput metrics accurate within 1% of actual
-- **Performance**: < 1% CPU overhead for metrics collection
-- **Memory**: < 10MB memory usage for 1 hour of data
-- **Latency**: < 1ms to retrieve any metric
-- **Reliability**: No metrics data loss under load
-
-## 10. Future Enhancements
-
-### Phase 5: Advanced Analytics
-- Anomaly detection for traffic patterns
-- Predictive analytics for capacity planning
-- Correlation analysis between routes
-- Real-time alerting integration
-
-### Phase 6: Distributed Metrics
-- Metrics aggregation across multiple proxies
-- Distributed time-series storage
-- Cross-proxy analytics
-- Global dashboard support
-
-## 11. Risks and Mitigations
-
-### Risk: Memory Usage
-- **Mitigation**: Circular buffers and configurable retention
-- **Monitoring**: Track memory usage per metric type
-
-### Risk: Performance Impact
-- **Mitigation**: Efficient data structures and caching
-- **Testing**: Load test with metrics enabled/disabled
-
-### Risk: Data Accuracy
-- **Mitigation**: Atomic operations and proper synchronization
-- **Validation**: Compare with external monitoring tools
-
-## Conclusion
-
-This plan transforms SmartProxy's metrics from a basic cumulative system to a comprehensive, time-series based monitoring solution suitable for production environments. The phased approach ensures minimal disruption while delivering immediate value through accurate throughput measurements.

test/core/routing/test.path-matcher.ts

@@ -32,14 +32,14 @@ tap.test('PathMatcher - wildcard matching', async () => {
   const result = PathMatcher.match('/api/*', '/api/users/123/profile');
   expect(result.matches).toEqual(true);
   expect(result.pathMatch).toEqual('/api');  // Normalized without trailing slash
-  expect(result.pathRemainder).toEqual('users/123/profile');
+  expect(result.pathRemainder).toEqual('/users/123/profile');
 });
 
 tap.test('PathMatcher - mixed parameters and wildcards', async () => {
   const result = PathMatcher.match('/api/:version/*', '/api/v1/users/123');
   expect(result.matches).toEqual(true);
   expect(result.params).toEqual({ version: 'v1' });
-  expect(result.pathRemainder).toEqual('users/123');
+  expect(result.pathRemainder).toEqual('/users/123');
 });
 
 tap.test('PathMatcher - trailing slash normalization', async () => {

test/core/utils/test.shared-security-manager.ts

@@ -58,7 +58,7 @@ tap.test('Shared Security Manager', async () => {
       },
       action: {
         type: 'forward',
-        target: { host: 'target.com', port: 443 }
+        targets: [{ host: 'target.com', port: 443 }]
       },
       security: {
         ipAllowList: ['10.0.0.*', '192.168.1.*'],
@@ -113,7 +113,7 @@ tap.test('Shared Security Manager', async () => {
       },
       action: {
         type: 'forward',
-        target: { host: 'target.com', port: 443 }
+        targets: [{ host: 'target.com', port: 443 }]
       },
       security: {
         rateLimit: {

test/test.acme-route-creation.ts

@@ -59,7 +59,7 @@ tap.test('should create ACME challenge route', async (tools) => {
         },
         action: {
           type: 'forward' as const,
-          target: { host: 'localhost', port: 8080 }
+          targets: [{ host: 'localhost', port: 8080 }]
         }
       },
       challengeRoute

test/test.acme-timing-simple.ts

@@ -18,7 +18,7 @@ tap.test('should defer certificate provisioning until ports are ready', async (t
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 },
+        targets: [{ host: 'localhost', port: 8181 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',

test/test.acme-timing.ts

@@ -30,7 +30,7 @@ tap.test('should defer certificate provisioning until after ports are listening'
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 },
+        targets: [{ host: 'localhost', port: 8181 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',
@@ -126,7 +126,7 @@ tap.test('should have ACME challenge route ready before certificate provisioning
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 },
+        targets: [{ host: 'localhost', port: 8181 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto'

test/test.certificate-acme-update.ts

@@ -16,10 +16,10 @@ tap.test('SmartCertManager should call getCertificateForDomain with wildcard opt
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 8080
-      },
+      }],
       tls: {
         mode: 'terminate',
         certificate: 'auto',

test/test.certificate-provision.ts

@@ -0,0 +1,360 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import { SmartProxy } from '../ts/index.js';
+import type { TSmartProxyCertProvisionObject } from '../ts/index.js';
+import * as fs from 'fs';
+import * as path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+let testProxy: SmartProxy;
+
+// Load test certificates from helpers
+const testCert = fs.readFileSync(path.join(__dirname, 'helpers/test-cert.pem'), 'utf8');
+const testKey = fs.readFileSync(path.join(__dirname, 'helpers/test-key.pem'), 'utf8');
+
+tap.test('SmartProxy should support custom certificate provision function', async () => {
+  // Create test certificate object matching ICert interface
+  const testCertObject = {
+    id: 'test-cert-1',
+    domainName: 'test.example.com',
+    created: Date.now(),
+    validUntil: Date.now() + 90 * 24 * 60 * 60 * 1000, // 90 days
+    privateKey: testKey,
+    publicKey: testCert,
+    csr: ''
+  };
+  
+  // Custom certificate store for testing
+  const customCerts = new Map<string, typeof testCertObject>();
+  customCerts.set('test.example.com', testCertObject);
+  
+  // Create proxy with custom certificate provision
+  testProxy = new SmartProxy({
+    certProvisionFunction: async (domain: string): Promise<TSmartProxyCertProvisionObject> => {
+      console.log(`Custom cert provision called for domain: ${domain}`);
+      
+      // Return custom cert for known domains
+      if (customCerts.has(domain)) {
+        console.log(`Returning custom certificate for ${domain}`);
+        return customCerts.get(domain)!;
+      }
+      
+      // Fallback to Let's Encrypt for other domains
+      console.log(`Falling back to Let's Encrypt for ${domain}`);
+      return 'http01';
+    },
+    certProvisionFallbackToAcme: true,
+    acme: {
+      email: 'test@example.com',
+      useProduction: false
+    },
+    routes: [
+      {
+        name: 'test-route',
+        match: {
+          ports: [443],
+          domains: ['test.example.com']
+        },
+        action: {
+          type: 'forward',
+          targets: [{
+            host: 'localhost',
+            port: 8080
+          }],
+          tls: {
+            mode: 'terminate',
+            certificate: 'auto'
+          }
+        }
+      }
+    ]
+  });
+  
+  expect(testProxy).toBeInstanceOf(SmartProxy);
+});
+
+tap.test('Custom certificate provision function should be called', async () => {
+  let provisionCalled = false;
+  const provisionedDomains: string[] = [];
+  
+  const testProxy2 = new SmartProxy({
+    certProvisionFunction: async (domain: string): Promise<TSmartProxyCertProvisionObject> => {
+      provisionCalled = true;
+      provisionedDomains.push(domain);
+      
+      // Return a test certificate matching ICert interface
+      return {
+        id: `test-cert-${domain}`,
+        domainName: domain,
+        created: Date.now(),
+        validUntil: Date.now() + 90 * 24 * 60 * 60 * 1000,
+        privateKey: testKey,
+        publicKey: testCert,
+        csr: ''
+      };
+    },
+    acme: {
+      email: 'test@example.com',
+      useProduction: false,
+      port: 9080
+    },
+    routes: [
+      {
+        name: 'custom-cert-route',
+        match: {
+          ports: [9443],
+          domains: ['custom.example.com']
+        },
+        action: {
+          type: 'forward',
+          targets: [{
+            host: 'localhost',
+            port: 8080
+          }],
+          tls: {
+            mode: 'terminate',
+            certificate: 'auto'
+          }
+        }
+      }
+    ]
+  });
+  
+  // Mock the certificate manager to test our custom provision function
+  let certManagerCalled = false;
+  const origCreateCertManager = (testProxy2 as any).createCertificateManager;
+  (testProxy2 as any).createCertificateManager = async function(...args: any[]) {
+    const certManager = await origCreateCertManager.apply(testProxy2, args);
+    
+    // Override provisionAllCertificates to track calls
+    const origProvisionAll = certManager.provisionAllCertificates;
+    certManager.provisionAllCertificates = async function() {
+      certManagerCalled = true;
+      await origProvisionAll.call(certManager);
+    };
+    
+    return certManager;
+  };
+  
+  // Start the proxy (this will trigger certificate provisioning)
+  await testProxy2.start();
+  
+  expect(certManagerCalled).toBeTrue();
+  expect(provisionCalled).toBeTrue();
+  expect(provisionedDomains).toContain('custom.example.com');
+  
+  await testProxy2.stop();
+});
+
+tap.test('Should fallback to ACME when custom provision fails', async () => {
+  const failedDomains: string[] = [];
+  let acmeAttempted = false;
+  
+  const testProxy3 = new SmartProxy({
+    certProvisionFunction: async (domain: string): Promise<TSmartProxyCertProvisionObject> => {
+      failedDomains.push(domain);
+      throw new Error('Custom provision failed for testing');
+    },
+    certProvisionFallbackToAcme: true,
+    acme: {
+      email: 'test@example.com',
+      useProduction: false,
+      port: 9080
+    },
+    routes: [
+      {
+        name: 'fallback-route',
+        match: {
+          ports: [9444],
+          domains: ['fallback.example.com']
+        },
+        action: {
+          type: 'forward',
+          targets: [{
+            host: 'localhost',
+            port: 8080
+          }],
+          tls: {
+            mode: 'terminate',
+            certificate: 'auto'
+          }
+        }
+      }
+    ]
+  });
+  
+  // Mock to track ACME attempts
+  const origCreateCertManager = (testProxy3 as any).createCertificateManager;
+  (testProxy3 as any).createCertificateManager = async function(...args: any[]) {
+    const certManager = await origCreateCertManager.apply(testProxy3, args);
+    
+    // Mock SmartAcme to avoid real ACME calls
+    (certManager as any).smartAcme = {
+      getCertificateForDomain: async () => {
+        acmeAttempted = true;
+        throw new Error('Mocked ACME failure');
+      }
+    };
+    
+    return certManager;
+  };
+  
+  // Start the proxy
+  await testProxy3.start();
+  
+  // Custom provision should have failed
+  expect(failedDomains).toContain('fallback.example.com');
+  
+  // ACME should have been attempted as fallback
+  expect(acmeAttempted).toBeTrue();
+  
+  await testProxy3.stop();
+});
+
+tap.test('Should not fallback when certProvisionFallbackToAcme is false', async () => {
+  let errorThrown = false;
+  let errorMessage = '';
+  
+  const testProxy4 = new SmartProxy({
+    certProvisionFunction: async (_domain: string): Promise<TSmartProxyCertProvisionObject> => {
+      throw new Error('Custom provision failed for testing');
+    },
+    certProvisionFallbackToAcme: false,
+    routes: [
+      {
+        name: 'no-fallback-route',
+        match: {
+          ports: [9445],
+          domains: ['no-fallback.example.com']
+        },
+        action: {
+          type: 'forward',
+          targets: [{
+            host: 'localhost',
+            port: 8080
+          }],
+          tls: {
+            mode: 'terminate',
+            certificate: 'auto'
+          }
+        }
+      }
+    ]
+  });
+  
+  // Mock certificate manager to capture errors
+  const origCreateCertManager = (testProxy4 as any).createCertificateManager;
+  (testProxy4 as any).createCertificateManager = async function(...args: any[]) {
+    const certManager = await origCreateCertManager.apply(testProxy4, args);
+    
+    // Override provisionAllCertificates to capture errors
+    const origProvisionAll = certManager.provisionAllCertificates;
+    certManager.provisionAllCertificates = async function() {
+      try {
+        await origProvisionAll.call(certManager);
+      } catch (e) {
+        errorThrown = true;
+        errorMessage = e.message;
+        throw e;
+      }
+    };
+    
+    return certManager;
+  };
+  
+  try {
+    await testProxy4.start();
+  } catch (e) {
+    // Expected to fail
+  }
+  
+  expect(errorThrown).toBeTrue();
+  expect(errorMessage).toInclude('Custom provision failed for testing');
+  
+  await testProxy4.stop();
+});
+
+tap.test('Should return http01 for unknown domains', async () => {
+  let returnedHttp01 = false;
+  let acmeAttempted = false;
+  
+  const testProxy5 = new SmartProxy({
+    certProvisionFunction: async (domain: string): Promise<TSmartProxyCertProvisionObject> => {
+      if (domain === 'known.example.com') {
+        return {
+          id: `test-cert-${domain}`,
+          domainName: domain,
+          created: Date.now(),
+          validUntil: Date.now() + 90 * 24 * 60 * 60 * 1000,
+          privateKey: testKey,
+          publicKey: testCert,
+          csr: ''
+        };
+      }
+      returnedHttp01 = true;
+      return 'http01';
+    },
+    acme: {
+      email: 'test@example.com',
+      useProduction: false,
+      port: 9081
+    },
+    routes: [
+      {
+        name: 'unknown-domain-route',
+        match: {
+          ports: [9446],
+          domains: ['unknown.example.com']
+        },
+        action: {
+          type: 'forward',
+          targets: [{
+            host: 'localhost',
+            port: 8080
+          }],
+          tls: {
+            mode: 'terminate',
+            certificate: 'auto'
+          }
+        }
+      }
+    ]
+  });
+  
+  // Mock to track ACME attempts
+  const origCreateCertManager = (testProxy5 as any).createCertificateManager;
+  (testProxy5 as any).createCertificateManager = async function(...args: any[]) {
+    const certManager = await origCreateCertManager.apply(testProxy5, args);
+    
+    // Mock SmartAcme to track attempts
+    (certManager as any).smartAcme = {
+      getCertificateForDomain: async () => {
+        acmeAttempted = true;
+        throw new Error('Mocked ACME failure');
+      }
+    };
+    
+    return certManager;
+  };
+  
+  await testProxy5.start();
+  
+  // Should have returned http01 for unknown domain
+  expect(returnedHttp01).toBeTrue();
+  
+  // ACME should have been attempted
+  expect(acmeAttempted).toBeTrue();
+  
+  await testProxy5.stop();
+});
+
+tap.test('cleanup', async () => {
+  // Clean up any test proxies
+  if (testProxy) {
+    await testProxy.stop();
+  }
+});
+
+export default tap.start();

test/test.certificate-provisioning.ts

@@ -7,7 +7,7 @@ const testProxy = new SmartProxy({
     match: { ports: 9443, domains: 'test.local' },
     action: {
       type: 'forward',
-      target: { host: 'localhost', port: 8080 },
+      targets: [{ host: 'localhost', port: 8080 }],
       tls: {
         mode: 'terminate',
         certificate: 'auto',
@@ -67,7 +67,7 @@ tap.test('should handle static certificates', async () => {
       match: { ports: 9444, domains: 'static.example.com' },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8080 },
+        targets: [{ host: 'localhost', port: 8080 }],
         tls: {
           mode: 'terminate',
           certificate: {
@@ -96,7 +96,7 @@ tap.test('should handle ACME challenge routes', async () => {
       match: { ports: 9445, domains: 'acme.local' },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8080 },
+        targets: [{ host: 'localhost', port: 8080 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',
@@ -112,7 +112,7 @@ tap.test('should handle ACME challenge routes', async () => {
       match: { ports: 9081, domains: 'acme.local' },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8080 }
+        targets: [{ host: 'localhost', port: 8080 }]
       }
     }],
     acme: {
@@ -167,7 +167,7 @@ tap.test('should renew certificates', async () => {
       match: { ports: 9446, domains: 'renew.local' },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8080 },
+        targets: [{ host: 'localhost', port: 8080 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',

test/test.certificate-simple.ts

@@ -8,7 +8,7 @@ tap.test('should create SmartProxy with certificate routes', async () => {
       match: { ports: 8443, domains: 'test.example.com' },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8080 },
+        targets: [{ host: 'localhost', port: 8080 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',

test/test.cleanup-queue-bug.node.ts

@@ -13,7 +13,7 @@ tap.test('cleanup queue bug - verify queue processing handles more than batch si
       match: { ports: 8588 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 9996 }
+        targets: [{ host: 'localhost', port: 9996 }]
       }
     }],
     enableDetailedLogging: false,

test/test.connect-disconnect-cleanup.node.ts

@@ -18,10 +18,10 @@ tap.test('should handle clients that connect and immediately disconnect without
       match: { ports: 8560 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9999  // Non-existent port
-        }
+        }]
       }
     }]
   });
@@ -173,10 +173,10 @@ tap.test('should handle clients that error during connection', async () => {
       match: { ports: 8561 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9999
-        }
+        }]
       }
     }]
   });

test/test.connection-cleanup-comprehensive.node.ts

@@ -20,10 +20,10 @@ tap.test('comprehensive connection cleanup test - all scenarios', async () => {
         match: { ports: 8570 },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: 9999  // Non-existent port
-          }
+          }]
         }
       },
       {
@@ -31,10 +31,10 @@ tap.test('comprehensive connection cleanup test - all scenarios', async () => {
         match: { ports: 8571 },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: 9999  // Non-existent port
-          },
+          }],
           tls: {
             mode: 'passthrough'
           }
@@ -215,10 +215,10 @@ tap.test('comprehensive connection cleanup test - all scenarios', async () => {
       action: {
         type: 'forward',
         forwardingEngine: 'nftables',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9999
-        }
+        }]
       }
     }]
   });

test/test.connection-forwarding.ts

@@ -65,10 +65,10 @@ tap.test('should forward TCP connections correctly', async () => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 7001,
-          },
+          }],
         },
       },
     ],
@@ -118,10 +118,10 @@ tap.test('should handle TLS passthrough correctly', async () => {
           tls: {
             mode: 'passthrough',
           },
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 7002,
-          },
+          }],
         },
       },
     ],
@@ -179,10 +179,10 @@ tap.test('should handle SNI-based forwarding', async () => {
           tls: {
             mode: 'passthrough',
           },
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 7002,
-          },
+          }],
         },
       },
       {
@@ -197,10 +197,10 @@ tap.test('should handle SNI-based forwarding', async () => {
           tls: {
             mode: 'passthrough',
           },
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 7002,
-          },
+          }],
         },
       },
     ],

test/test.connection-limits.node.ts

@@ -0,0 +1,299 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import * as net from 'net';
+import { SmartProxy } from '../ts/proxies/smart-proxy/index.js';
+import { HttpProxy } from '../ts/proxies/http-proxy/index.js';
+
+let testServer: net.Server;
+let smartProxy: SmartProxy;
+let httpProxy: HttpProxy;
+const TEST_SERVER_PORT = 5100;
+const PROXY_PORT = 5101;
+const HTTP_PROXY_PORT = 5102;
+
+// Track all created servers and connections for cleanup
+const allServers: net.Server[] = [];
+const allProxies: (SmartProxy | HttpProxy)[] = [];
+const activeConnections: net.Socket[] = [];
+
+// Helper: Creates a test TCP server
+function createTestServer(port: number): Promise<net.Server> {
+  return new Promise((resolve) => {
+    const server = net.createServer((socket) => {
+      socket.on('data', (data) => {
+        socket.write(`Echo: ${data.toString()}`);
+      });
+      socket.on('error', () => {});
+    });
+    server.listen(port, 'localhost', () => {
+      console.log(`[Test Server] Listening on localhost:${port}`);
+      allServers.push(server);
+      resolve(server);
+    });
+  });
+}
+
+// Helper: Creates multiple concurrent connections
+async function createConcurrentConnections(
+  port: number,
+  count: number,
+  fromIP?: string
+): Promise<net.Socket[]> {
+  const connections: net.Socket[] = [];
+  const promises: Promise<net.Socket>[] = [];
+
+  for (let i = 0; i < count; i++) {
+    promises.push(
+      new Promise((resolve, reject) => {
+        const client = new net.Socket();
+        const timeout = setTimeout(() => {
+          client.destroy();
+          reject(new Error(`Connection ${i} timeout`));
+        }, 5000);
+
+        client.connect(port, 'localhost', () => {
+          clearTimeout(timeout);
+          activeConnections.push(client);
+          connections.push(client);
+          resolve(client);
+        });
+
+        client.on('error', (err) => {
+          clearTimeout(timeout);
+          reject(err);
+        });
+      })
+    );
+  }
+
+  await Promise.all(promises);
+  return connections;
+}
+
+// Helper: Clean up connections
+function cleanupConnections(connections: net.Socket[]): void {
+  connections.forEach(conn => {
+    if (!conn.destroyed) {
+      conn.destroy();
+    }
+  });
+}
+
+tap.test('Setup test environment', async () => {
+  testServer = await createTestServer(TEST_SERVER_PORT);
+  
+  // Create SmartProxy with low connection limits for testing
+  smartProxy = new SmartProxy({
+    routes: [{
+      name: 'test-route',
+      match: {
+        ports: PROXY_PORT
+      },
+      action: {
+        type: 'forward',
+        targets: [{
+          host: 'localhost',
+          port: TEST_SERVER_PORT
+        }]
+      },
+      security: {
+        maxConnections: 5 // Low limit for testing
+      }
+    }],
+    maxConnectionsPerIP: 3, // Low per-IP limit
+    connectionRateLimitPerMinute: 10, // Low rate limit
+    defaults: {
+      security: {
+        maxConnections: 10 // Low global limit
+      }
+    }
+  });
+  
+  await smartProxy.start();
+  allProxies.push(smartProxy);
+});
+
+tap.test('Per-IP connection limits', async () => {
+  // Test that we can create up to the per-IP limit
+  const connections1 = await createConcurrentConnections(PROXY_PORT, 3);
+  expect(connections1.length).toEqual(3);
+  
+  // Try to create one more connection - should fail
+  try {
+    await createConcurrentConnections(PROXY_PORT, 1);
+    expect.fail('Should not allow more than 3 connections per IP');
+  } catch (err) {
+    expect(err.message).toInclude('ECONNRESET');
+  }
+  
+  // Clean up first set of connections
+  cleanupConnections(connections1);
+  await new Promise(resolve => setTimeout(resolve, 100));
+  
+  // Should be able to create new connections after cleanup
+  const connections2 = await createConcurrentConnections(PROXY_PORT, 2);
+  expect(connections2.length).toEqual(2);
+  
+  cleanupConnections(connections2);
+});
+
+tap.test('Route-level connection limits', async () => {
+  // Create multiple connections up to route limit
+  const connections = await createConcurrentConnections(PROXY_PORT, 5);
+  expect(connections.length).toEqual(5);
+  
+  // Try to exceed route limit
+  try {
+    await createConcurrentConnections(PROXY_PORT, 1);
+    expect.fail('Should not allow more than 5 connections for this route');
+  } catch (err) {
+    expect(err.message).toInclude('ECONNRESET');
+  }
+  
+  cleanupConnections(connections);
+});
+
+tap.test('Connection rate limiting', async () => {
+  // Create connections rapidly
+  const connections: net.Socket[] = [];
+  
+  // Create 10 connections rapidly (at rate limit)
+  for (let i = 0; i < 10; i++) {
+    try {
+      const conn = await createConcurrentConnections(PROXY_PORT, 1);
+      connections.push(...conn);
+      // Small delay to avoid per-IP limit
+      if (connections.length >= 3) {
+        cleanupConnections(connections.splice(0, 3));
+        await new Promise(resolve => setTimeout(resolve, 50));
+      }
+    } catch (err) {
+      // Expected to fail at some point due to rate limit
+      expect(i).toBeGreaterThan(0);
+      break;
+    }
+  }
+  
+  cleanupConnections(connections);
+});
+
+tap.test('HttpProxy per-IP validation', async () => {
+  // Create HttpProxy
+  httpProxy = new HttpProxy({
+    port: HTTP_PROXY_PORT,
+    maxConnectionsPerIP: 2,
+    connectionRateLimitPerMinute: 10,
+    routes: []
+  });
+  
+  await httpProxy.start();
+  allProxies.push(httpProxy);
+  
+  // Update SmartProxy to use HttpProxy for TLS termination
+  await smartProxy.stop();
+  smartProxy = new SmartProxy({
+    routes: [{
+      name: 'https-route',
+      match: {
+        ports: PROXY_PORT + 10
+      },
+      action: {
+        type: 'forward',
+        targets: [{
+          host: 'localhost',
+          port: TEST_SERVER_PORT
+        }],
+        tls: {
+          mode: 'terminate'
+        }
+      }
+    }],
+    useHttpProxy: [PROXY_PORT + 10],
+    httpProxyPort: HTTP_PROXY_PORT,
+    maxConnectionsPerIP: 3
+  });
+  
+  await smartProxy.start();
+  
+  // Test that HttpProxy enforces its own per-IP limits
+  const connections = await createConcurrentConnections(PROXY_PORT + 10, 2);
+  expect(connections.length).toEqual(2);
+  
+  // Should reject additional connections
+  try {
+    await createConcurrentConnections(PROXY_PORT + 10, 1);
+    expect.fail('HttpProxy should enforce per-IP limits');
+  } catch (err) {
+    expect(err.message).toInclude('ECONNRESET');
+  }
+  
+  cleanupConnections(connections);
+});
+
+tap.test('IP tracking cleanup', async (tools) => {
+  // Create and close many connections from different IPs
+  const connections: net.Socket[] = [];
+  
+  for (let i = 0; i < 5; i++) {
+    const conn = await createConcurrentConnections(PROXY_PORT, 1);
+    connections.push(...conn);
+  }
+  
+  // Close all connections
+  cleanupConnections(connections);
+  
+  // Wait for cleanup interval (set to 60s in production, but we'll check immediately)
+  await tools.delayFor(100);
+  
+  // Verify that IP tracking has been cleaned up
+  const securityManager = (smartProxy as any).securityManager;
+  const ipCount = (securityManager.connectionsByIP as Map<string, any>).size;
+  
+  // Should have no IPs tracked after cleanup
+  expect(ipCount).toEqual(0);
+});
+
+tap.test('Cleanup queue race condition handling', async () => {
+  // Create many connections concurrently to trigger batched cleanup
+  const promises: Promise<net.Socket[]>[] = [];
+  
+  for (let i = 0; i < 20; i++) {
+    promises.push(createConcurrentConnections(PROXY_PORT, 1).catch(() => []));
+  }
+  
+  const results = await Promise.all(promises);
+  const allConnections = results.flat();
+  
+  // Close all connections rapidly
+  allConnections.forEach(conn => conn.destroy());
+  
+  // Give cleanup queue time to process
+  await new Promise(resolve => setTimeout(resolve, 500));
+  
+  // Verify all connections were cleaned up
+  const connectionManager = (smartProxy as any).connectionManager;
+  const remainingConnections = connectionManager.getConnectionCount();
+  
+  expect(remainingConnections).toEqual(0);
+});
+
+tap.test('Cleanup and shutdown', async () => {
+  // Clean up any remaining connections
+  cleanupConnections(activeConnections);
+  activeConnections.length = 0;
+  
+  // Stop all proxies
+  for (const proxy of allProxies) {
+    await proxy.stop();
+  }
+  allProxies.length = 0;
+  
+  // Close all test servers
+  for (const server of allServers) {
+    await new Promise<void>((resolve) => {
+      server.close(() => resolve());
+    });
+  }
+  allServers.length = 0;
+});
+
+tap.start();

test/test.fix-verification.ts

@@ -9,7 +9,7 @@ tap.test('should verify certificate manager callback is preserved on updateRoute
       match: { ports: [18443], domains: ['test.local'] },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 3000 },
+        targets: [{ host: 'localhost', port: 3000 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',
@@ -63,7 +63,7 @@ tap.test('should verify certificate manager callback is preserved on updateRoute
     match: { ports: [18444], domains: ['test2.local'] },
     action: {
       type: 'forward',
-      target: { host: 'localhost', port: 3001 },
+      targets: [{ host: 'localhost', port: 3001 }],
       tls: {
         mode: 'terminate',
         certificate: 'auto',

test/test.forwarding-fix-verification.ts

@@ -37,7 +37,7 @@ tap.test('regular forward route should work correctly', async () => {
       match: { ports: 7890 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 6789 }
+        targets: [{ host: 'localhost', port: 6789 }]
       }
     }]
   });
@@ -106,7 +106,7 @@ tap.skip.test('NFTables forward route should not terminate connections (requires
       action: {
         type: 'forward',
         forwardingEngine: 'nftables',
-        target: { host: 'localhost', port: 6789 }
+        targets: [{ host: 'localhost', port: 6789 }]
       }
     }]
   });

test/test.forwarding-regression.ts

@@ -39,10 +39,10 @@ tap.test('forward connections should not be immediately closed', async (t) => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 9090,
-          },
+          }],
         },
       },
     ],

test/test.forwarding.ts

@@ -39,7 +39,7 @@ tap.test('Route Helpers - Create HTTP routes', async () => {
   const route = helpers.httpOnly('example.com', { host: 'localhost', port: 3000 });
   expect(route.action.type).toEqual('forward');
   expect(route.match.domains).toEqual('example.com');
-  expect(route.action.target).toEqual({ host: 'localhost', port: 3000 });
+  expect(route.action.targets?.[0]).toEqual({ host: 'localhost', port: 3000 });
 });
 
 tap.test('Route Helpers - Create HTTPS terminate to HTTP routes', async () => {

test/test.http-fix-unit.ts

@@ -20,7 +20,7 @@ tap.test('should forward non-TLS connections on HttpProxy ports', async (tapTest
       match: { ports: testPort },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 }
+        targets: [{ host: 'localhost', port: 8181 }]
       }
     }]
   };
@@ -81,7 +81,7 @@ tap.test('should use direct connection for non-HttpProxy ports', async (tapTest)
       match: { ports: 8080 }, // Not in useHttpProxy
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 }
+        targets: [{ host: 'localhost', port: 8181 }]
       }
     }]
   };
@@ -142,7 +142,7 @@ tap.test('should handle ACME HTTP-01 challenges on port 80 with HttpProxy', asyn
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8080 }
+        targets: [{ host: 'localhost', port: 8080 }]
       }
     }]
   };

test/test.http-fix-verification.ts

@@ -14,7 +14,7 @@ tap.test('should detect and forward non-TLS connections on useHttpProxy ports',
       match: { ports: 8080 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 }
+        targets: [{ host: 'localhost', port: 8181 }]
       }
     }]
   };
@@ -140,7 +140,7 @@ tap.test('should handle TLS connections normally', async (tapTest) => {
       match: { ports: 443 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8443 },
+        targets: [{ host: 'localhost', port: 8443 }],
         tls: { mode: 'terminate' }
       }
     }]

test/test.http-forwarding-fix.ts

@@ -17,7 +17,7 @@ tap.test('should detect and forward non-TLS connections on HttpProxy ports', asy
       match: { ports: 8081 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8181 }
+        targets: [{ host: 'localhost', port: 8181 }]
       }
     }]
   });
@@ -120,7 +120,7 @@ tap.test('should properly detect non-TLS connections on HttpProxy ports', async
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: targetPort }
+        targets: [{ host: 'localhost', port: targetPort }]
       }
     }]
   });

test/test.http-port8080-forwarding.ts

@@ -42,7 +42,7 @@ tap.test('should forward HTTP connections on port 8080', async (tapTest) => {
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: targetPort }
+        targets: [{ host: 'localhost', port: targetPort }]
       }
     }]
   });
@@ -131,7 +131,7 @@ tap.test('should handle basic HTTP request forwarding', async (tapTest) => {
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: targetPort }
+        targets: [{ host: 'localhost', port: targetPort }]
       }
     }]
   });

test/test.http-port8080-simple.ts

@@ -67,7 +67,7 @@ tap.test('should handle ACME challenges on port 8080 with improved port binding
         },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: targetPort },
+          targets: [{ host: 'localhost', port: targetPort }],
           tls: {
             mode: 'terminate',
             certificate: 'auto'  // Use ACME for certificate
@@ -83,7 +83,7 @@ tap.test('should handle ACME challenges on port 8080 with improved port binding
         },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: targetPort }
+          targets: [{ host: 'localhost', port: targetPort }]
         }
       }
     ],
@@ -191,7 +191,7 @@ tap.test('should handle ACME challenges on port 8080 with improved port binding
         },
         action: {
           type: 'forward' as const,
-          target: { host: 'localhost', port: targetPort }
+          targets: [{ host: 'localhost', port: targetPort }]
         }
       }
     ];

test/test.http-proxy-security-limits.node.ts

@@ -0,0 +1,120 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import { SecurityManager } from '../ts/proxies/http-proxy/security-manager.js';
+import { createLogger } from '../ts/proxies/http-proxy/models/types.js';
+
+let securityManager: SecurityManager;
+const logger = createLogger('error'); // Quiet logger for tests
+
+tap.test('Setup HttpProxy SecurityManager', async () => {
+  securityManager = new SecurityManager(logger, [], 3, 10); // Low limits for testing
+});
+
+tap.test('HttpProxy IP connection tracking', async () => {
+  const testIP = '10.0.0.1';
+  
+  // Track connections
+  securityManager.trackConnectionByIP(testIP, 'http-conn1');
+  securityManager.trackConnectionByIP(testIP, 'http-conn2');
+  
+  expect(securityManager.getConnectionCountByIP(testIP)).toEqual(2);
+  
+  // Validate IP should pass
+  let result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeTrue();
+  
+  // Add one more to reach limit
+  securityManager.trackConnectionByIP(testIP, 'http-conn3');
+  
+  // Should now reject new connections
+  result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeFalse();
+  expect(result.reason).toInclude('Maximum connections per IP (3) exceeded');
+  
+  // Remove a connection
+  securityManager.removeConnectionByIP(testIP, 'http-conn1');
+  
+  // Should allow connections again
+  result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeTrue();
+  
+  // Clean up
+  securityManager.removeConnectionByIP(testIP, 'http-conn2');
+  securityManager.removeConnectionByIP(testIP, 'http-conn3');
+});
+
+tap.test('HttpProxy connection rate limiting', async () => {
+  const testIP = '10.0.0.2';
+  
+  // Make 10 connections rapidly (at rate limit)
+  for (let i = 0; i < 10; i++) {
+    const result = securityManager.validateIP(testIP);
+    expect(result.allowed).toBeTrue();
+    // Track the connection to simulate real usage
+    securityManager.trackConnectionByIP(testIP, `rate-conn${i}`);
+  }
+  
+  // 11th connection should be rate limited
+  const result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeFalse();
+  expect(result.reason).toInclude('Connection rate limit (10/min) exceeded');
+  
+  // Clean up
+  for (let i = 0; i < 10; i++) {
+    securityManager.removeConnectionByIP(testIP, `rate-conn${i}`);
+  }
+});
+
+tap.test('HttpProxy CLIENT_IP header handling', async () => {
+  // This tests the scenario where SmartProxy forwards the real client IP
+  const realClientIP = '203.0.113.1';
+  const proxyIP = '127.0.0.1';
+  
+  // Simulate SmartProxy tracking the real client IP
+  securityManager.trackConnectionByIP(realClientIP, 'forwarded-conn1');
+  securityManager.trackConnectionByIP(realClientIP, 'forwarded-conn2');
+  securityManager.trackConnectionByIP(realClientIP, 'forwarded-conn3');
+  
+  // Real client IP should be at limit
+  let result = securityManager.validateIP(realClientIP);
+  expect(result.allowed).toBeFalse();
+  
+  // But proxy IP should still be allowed
+  result = securityManager.validateIP(proxyIP);
+  expect(result.allowed).toBeTrue();
+  
+  // Clean up
+  securityManager.removeConnectionByIP(realClientIP, 'forwarded-conn1');
+  securityManager.removeConnectionByIP(realClientIP, 'forwarded-conn2');
+  securityManager.removeConnectionByIP(realClientIP, 'forwarded-conn3');
+});
+
+tap.test('HttpProxy automatic cleanup', async (tools) => {
+  const testIP = '10.0.0.3';
+  
+  // Create and immediately remove connections
+  for (let i = 0; i < 5; i++) {
+    securityManager.trackConnectionByIP(testIP, `cleanup-conn${i}`);
+    securityManager.removeConnectionByIP(testIP, `cleanup-conn${i}`);
+  }
+  
+  // Add rate limit entries
+  for (let i = 0; i < 5; i++) {
+    securityManager.validateIP(testIP);
+  }
+  
+  // Wait a bit (cleanup runs every 60 seconds in production)
+  // For testing, we'll just verify the cleanup logic works
+  await tools.delayFor(100);
+  
+  // Manually trigger cleanup (in production this happens automatically)
+  (securityManager as any).performIpCleanup();
+  
+  // IP should be cleaned up
+  expect(securityManager.getConnectionCountByIP(testIP)).toEqual(0);
+});
+
+tap.test('Cleanup HttpProxy SecurityManager', async () => {
+  securityManager.clearIPTracking();
+});
+
+tap.start();

test/test.httpproxy.function-targets.ts

@@ -95,10 +95,10 @@ tap.test('should support static host/port routes', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: serverPort
-        }
+        }]
       }
     }
   ];
@@ -135,13 +135,13 @@ tap.test('should support function-based host', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: (context: IRouteContext) => {
             // Return localhost always in this test
             return 'localhost';
           },
           port: serverPort
-        }
+        }]
       }
     }
   ];
@@ -178,13 +178,13 @@ tap.test('should support function-based port', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: (context: IRouteContext) => {
             // Return test server port
             return serverPort;
           }
-        }
+        }]
       }
     }
   ];
@@ -221,14 +221,14 @@ tap.test('should support function-based host AND port', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: (context: IRouteContext) => {
             return 'localhost';
           },
           port: (context: IRouteContext) => {
             return serverPort;
           }
-        }
+        }]
       }
     }
   ];
@@ -265,7 +265,7 @@ tap.test('should support context-based routing with path', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: (context: IRouteContext) => {
             // Use path to determine host
             if (context.path?.startsWith('/api')) {
@@ -275,7 +275,7 @@ tap.test('should support context-based routing with path', async () => {
             }
           },
           port: serverPort
-        }
+        }]
       }
     }
   ];

test/test.httpproxy.ts

@@ -232,10 +232,10 @@ tap.test('should start the proxy server', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 3100
-        },
+        }],
         tls: {
           mode: 'terminate'
         },

test/test.keepalive-support.node.ts

@@ -40,7 +40,7 @@ tap.test('keepalive support - verify keepalive connections are properly handled'
       match: { ports: 8590 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 9998 }
+        targets: [{ host: 'localhost', port: 9998 }]
       }
     }],
     keepAlive: true,
@@ -117,7 +117,7 @@ tap.test('keepalive support - verify keepalive connections are properly handled'
       match: { ports: 8591 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 9998 }
+        targets: [{ host: 'localhost', port: 9998 }]
       }
     }],
     keepAlive: true,
@@ -178,7 +178,7 @@ tap.test('keepalive support - verify keepalive connections are properly handled'
       match: { ports: 8592 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 9998 }
+        targets: [{ host: 'localhost', port: 9998 }]
       }
     }],
     keepAlive: true,

test/test.log-deduplication.node.ts

@@ -0,0 +1,112 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import { LogDeduplicator } from '../ts/core/utils/log-deduplicator.js';
+
+let deduplicator: LogDeduplicator;
+
+tap.test('Setup log deduplicator', async () => {
+  deduplicator = new LogDeduplicator(1000); // 1 second flush interval for testing
+});
+
+tap.test('Connection rejection deduplication', async (tools) => {
+  // Simulate multiple connection rejections
+  for (let i = 0; i < 10; i++) {
+    deduplicator.log(
+      'connection-rejected',
+      'warn',
+      'Connection rejected',
+      { reason: 'global-limit', component: 'test' },
+      'global-limit'
+    );
+  }
+  
+  for (let i = 0; i < 5; i++) {
+    deduplicator.log(
+      'connection-rejected',
+      'warn',
+      'Connection rejected',
+      { reason: 'route-limit', component: 'test' },
+      'route-limit'
+    );
+  }
+  
+  // Force flush
+  deduplicator.flush('connection-rejected');
+  
+  // The logs should have been aggregated
+  // (Can't easily test the actual log output, but we can verify the mechanism works)
+  expect(deduplicator).toBeInstanceOf(LogDeduplicator);
+});
+
+tap.test('IP rejection deduplication', async (tools) => {
+  // Simulate rejections from multiple IPs
+  const ips = ['192.168.1.100', '192.168.1.101', '192.168.1.100', '10.0.0.1'];
+  const reasons = ['per-ip-limit', 'rate-limit', 'per-ip-limit', 'global-limit'];
+  
+  for (let i = 0; i < ips.length; i++) {
+    deduplicator.log(
+      'ip-rejected',
+      'warn',
+      `Connection rejected from ${ips[i]}`,
+      { remoteIP: ips[i], reason: reasons[i] },
+      ips[i]
+    );
+  }
+  
+  // Add more rejections from the same IP
+  for (let i = 0; i < 20; i++) {
+    deduplicator.log(
+      'ip-rejected',
+      'warn',
+      'Connection rejected from 192.168.1.100',
+      { remoteIP: '192.168.1.100', reason: 'rate-limit' },
+      '192.168.1.100'
+    );
+  }
+  
+  // Force flush
+  deduplicator.flush('ip-rejected');
+  
+  // Verify the deduplicator exists and works
+  expect(deduplicator).toBeInstanceOf(LogDeduplicator);
+});
+
+tap.test('Connection cleanup deduplication', async (tools) => {
+  // Simulate various cleanup events
+  const reasons = ['normal', 'timeout', 'error', 'normal', 'zombie'];
+  
+  for (const reason of reasons) {
+    for (let i = 0; i < 5; i++) {
+      deduplicator.log(
+        'connection-cleanup',
+        'info',
+        `Connection cleanup: ${reason}`,
+        { connectionId: `conn-${i}`, reason },
+        reason
+      );
+    }
+  }
+  
+  // Wait for automatic flush
+  await tools.delayFor(1500);
+  
+  // Verify deduplicator is working
+  expect(deduplicator).toBeInstanceOf(LogDeduplicator);
+});
+
+tap.test('Automatic periodic flush', async (tools) => {
+  // Add some events
+  deduplicator.log('test-event', 'info', 'Test message', {}, 'test');
+  
+  // Wait for automatic flush (should happen within 2x flush interval = 2 seconds)
+  await tools.delayFor(2500);
+  
+  // Events should have been flushed automatically
+  expect(deduplicator).toBeInstanceOf(LogDeduplicator);
+});
+
+tap.test('Cleanup deduplicator', async () => {
+  deduplicator.cleanup();
+  expect(deduplicator).toBeInstanceOf(LogDeduplicator);
+});
+
+tap.start();

test/test.long-lived-connections.ts

@@ -39,10 +39,10 @@ tap.test('setup test environment', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9876
-        }
+        }]
         // No TLS configuration - just plain TCP forwarding
       }
     }],

test/test.metrics-collector.ts

@@ -29,7 +29,7 @@ tap.test('MetricsCollector provides accurate metrics', async (tools) => {
         match: { ports: 8700 },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: 9995 }
+          targets: [{ host: 'localhost', port: 9995 }]
         }
       },
       {
@@ -37,7 +37,7 @@ tap.test('MetricsCollector provides accurate metrics', async (tools) => {
         match: { ports: 8701 },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: 9995 }
+          targets: [{ host: 'localhost', port: 9995 }]
         }
       }
     ],

test/test.metrics-new.ts

@@ -36,10 +36,10 @@ tap.test('should create SmartProxy instance with new metrics', async () => {
       },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: echoServerPort
-        },
+        }],
         tls: {
           mode: 'passthrough'
         }

test/test.nftables-forwarding.ts

@@ -34,10 +34,10 @@ tap.skip.test('NFTables forwarding should not terminate connections (requires ro
         action: {
           type: 'forward',
           forwardingEngine: 'nftables',
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 8001,
-          },
+          }],
         },
       },
       // Also add regular forwarding route for comparison
@@ -49,10 +49,10 @@ tap.skip.test('NFTables forwarding should not terminate connections (requires ro
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: 8001,
-          },
+          }],
         },
       },
     ],

test/test.nftables-manager.ts

@@ -42,10 +42,10 @@ const sampleRoute: IRouteConfig = {
   },
   action: {
     type: 'forward',
-    target: {
+    targets: [{
       host: 'localhost',
       port: 8000
-    },
+    }],
     forwardingEngine: 'nftables',
     nftables: {
       protocol: 'tcp',
@@ -115,10 +115,10 @@ tap.skip.test('NFTablesManager route updating test', async () => {
     ...sampleRoute,
     action: {
       ...sampleRoute.action,
-      target: {
+      targets: [{
         host: 'localhost',
         port: 9000 // Different port
-      },
+      }],
       nftables: {
         ...sampleRoute.action.nftables,
         protocol: 'all' // Different protocol
@@ -147,10 +147,10 @@ tap.skip.test('NFTablesManager route deprovisioning test', async () => {
     ...sampleRoute,
     action: {
       ...sampleRoute.action,
-      target: {
+      targets: [{
         host: 'localhost',
         port: 9000 // Different port from original test
-      },
+      }],
       nftables: {
         ...sampleRoute.action.nftables,
         protocol: 'all' // Different protocol from original test

test/test.nftables-status.ts

@@ -91,7 +91,7 @@ testFn('SmartProxy getNfTablesStatus functionality', async () => {
         match: { ports: 3004 },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: 3005 }
+          targets: [{ host: 'localhost', port: 3005 }]
         }
       }
     ]

test/test.port-forwarding-fix.ts

@@ -29,7 +29,7 @@ tap.test('port forwarding should not immediately close connections', async (tool
       match: { ports: 9999 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 8888 }
+        targets: [{ host: 'localhost', port: 8888 }]
       }
     }]
   });
@@ -63,7 +63,7 @@ tap.test('TLS passthrough should work correctly', async () => {
       action: {
         type: 'forward',
         tls: { mode: 'passthrough' },
-        target: { host: 'localhost', port: 443 }
+        targets: [{ host: 'localhost', port: 443 }]
       }
     }]
   });

test/test.port-mapping.ts

@@ -214,12 +214,12 @@ tap.test('should handle errors in port mapping functions', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: () => {
           throw new Error('Test error in port mapping function');
         }
-      }
+      }]
     },
     name: 'Error Route'
   };

test/test.port80-management.node.ts

@@ -21,7 +21,7 @@ tap.test('should not double-register port 80 when user route and ACME use same p
         },
         action: {
           type: 'forward' as const,
-          target: { host: 'localhost', port: 3000 }
+          targets: [{ host: 'localhost', port: 3000 }]
         }
       },
       {
@@ -31,7 +31,7 @@ tap.test('should not double-register port 80 when user route and ACME use same p
         },
         action: {
           type: 'forward' as const,
-          target: { host: 'localhost', port: 3001 },
+          targets: [{ host: 'localhost', port: 3001 }],
           tls: {
             mode: 'terminate' as const,
             certificate: 'auto' as const
@@ -153,7 +153,7 @@ tap.test('should handle ACME on different port than user routes', async (tools)
         },
         action: {
           type: 'forward' as const,
-          target: { host: 'localhost', port: 3000 }
+          targets: [{ host: 'localhost', port: 3000 }]
         }
       },
       {
@@ -163,7 +163,7 @@ tap.test('should handle ACME on different port than user routes', async (tools)
         },
         action: {
           type: 'forward' as const,
-          target: { host: 'localhost', port: 3001 },
+          targets: [{ host: 'localhost', port: 3001 }],
           tls: {
             mode: 'terminate' as const,
             certificate: 'auto' as const

test/test.proxy-chain-cleanup.node.ts

@@ -15,10 +15,10 @@ tap.test('setup two smartproxies in a chain configuration', async () => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'httpbin.org',
             port: 443
-          }
+          }]
         }
       }
     ],
@@ -45,10 +45,10 @@ tap.test('setup two smartproxies in a chain configuration', async () => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: 8002
-          },
+          }],
           sendProxyProtocol: true
         }
       }

test/test.proxy-chain-simple.node.ts

@@ -32,10 +32,10 @@ tap.test('simple proxy chain test - identify connection accumulation', async ()
       match: { ports: 8591 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9998  // Backend that closes immediately
-        }
+        }]
       }
     }]
   });
@@ -50,10 +50,10 @@ tap.test('simple proxy chain test - identify connection accumulation', async ()
       match: { ports: 8590 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 8591  // Forward to proxy2
-        }
+        }]
       }
     }]
   });

test/test.proxy-chaining-accumulation.node.ts

@@ -19,10 +19,10 @@ tap.test('should handle proxy chaining without connection accumulation', async (
       match: { ports: 8581 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9999  // Non-existent backend
-        }
+        }]
       }
     }]
   });
@@ -37,10 +37,10 @@ tap.test('should handle proxy chaining without connection accumulation', async (
       match: { ports: 8580 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 8581  // Forward to proxy2
-        }
+        }]
       }
     }]
   });
@@ -270,10 +270,10 @@ tap.test('should handle proxy chain with HTTP traffic', async () => {
       match: { ports: 8583 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9999  // Non-existent backend
-        }
+        }]
       }
     }]
   });
@@ -289,10 +289,10 @@ tap.test('should handle proxy chain with HTTP traffic', async () => {
       match: { ports: 8582 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 8583  // Forward to proxy2
-        }
+        }]
       }
     }]
   });

test/test.rapid-retry-cleanup.node.ts

@@ -19,10 +19,10 @@ tap.test('should handle rapid connection retries without leaking connections', a
       match: { ports: 8550 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9999  // Non-existent port to force connection failures
-        }
+        }]
       }
     }]
   });

test/test.route-callback-simple.ts

@@ -17,7 +17,7 @@ tap.test('should set update routes callback on certificate manager', async () =>
       },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 3000 },
+        targets: [{ host: 'localhost', port: 3000 }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',
@@ -95,7 +95,7 @@ tap.test('should set update routes callback on certificate manager', async () =>
     },
     action: {
       type: 'forward',
-      target: { host: 'localhost', port: 3001 },
+      targets: [{ host: 'localhost', port: 3001 }],
       tls: {
         mode: 'terminate',
         certificate: 'auto',

test/test.route-config.ts

@@ -56,8 +56,8 @@ tap.test('Routes: Should create basic HTTP route', async () => {
   expect(httpRoute.match.ports).toEqual(80);
   expect(httpRoute.match.domains).toEqual('example.com');
   expect(httpRoute.action.type).toEqual('forward');
-  expect(httpRoute.action.target?.host).toEqual('localhost');
+  expect(httpRoute.action.targets?.[0]?.host).toEqual('localhost');
-  expect(httpRoute.action.target?.port).toEqual(3000);
+  expect(httpRoute.action.targets?.[0]?.port).toEqual(3000);
   expect(httpRoute.name).toEqual('Basic HTTP Route');
 });
 
@@ -74,8 +74,8 @@ tap.test('Routes: Should create HTTPS route with TLS termination', async () => {
   expect(httpsRoute.action.type).toEqual('forward');
   expect(httpsRoute.action.tls?.mode).toEqual('terminate');
   expect(httpsRoute.action.tls?.certificate).toEqual('auto');
-  expect(httpsRoute.action.target?.host).toEqual('localhost');
+  expect(httpsRoute.action.targets?.[0]?.host).toEqual('localhost');
-  expect(httpsRoute.action.target?.port).toEqual(8080);
+  expect(httpsRoute.action.targets?.[0]?.port).toEqual(8080);
   expect(httpsRoute.name).toEqual('HTTPS Route');
 });
 
@@ -131,10 +131,10 @@ tap.test('Routes: Should create load balancer route', async () => {
   // Validate the route configuration
   expect(lbRoute.match.domains).toEqual('app.example.com');
   expect(lbRoute.action.type).toEqual('forward');
-  expect(Array.isArray(lbRoute.action.target?.host)).toBeTrue();
+  expect(Array.isArray(lbRoute.action.targets?.[0]?.host)).toBeTrue();
-  expect((lbRoute.action.target?.host as string[]).length).toEqual(3);
+  expect((lbRoute.action.targets?.[0]?.host as string[]).length).toEqual(3);
-  expect((lbRoute.action.target?.host as string[])[0]).toEqual('10.0.0.1');
+  expect((lbRoute.action.targets?.[0]?.host as string[])[0]).toEqual('10.0.0.1');
-  expect(lbRoute.action.target?.port).toEqual(8080);
+  expect(lbRoute.action.targets?.[0]?.port).toEqual(8080);
   expect(lbRoute.action.tls?.mode).toEqual('terminate');
 });
 
@@ -152,8 +152,8 @@ tap.test('Routes: Should create API route with CORS', async () => {
   expect(apiRoute.match.path).toEqual('/v1/*');
   expect(apiRoute.action.type).toEqual('forward');
   expect(apiRoute.action.tls?.mode).toEqual('terminate');
-  expect(apiRoute.action.target?.host).toEqual('localhost');
+  expect(apiRoute.action.targets?.[0]?.host).toEqual('localhost');
-  expect(apiRoute.action.target?.port).toEqual(3000);
+  expect(apiRoute.action.targets?.[0]?.port).toEqual(3000);
   
   // Check CORS headers
   expect(apiRoute.headers).toBeDefined();
@@ -177,8 +177,8 @@ tap.test('Routes: Should create WebSocket route', async () => {
   expect(wsRoute.match.path).toEqual('/socket');
   expect(wsRoute.action.type).toEqual('forward');
   expect(wsRoute.action.tls?.mode).toEqual('terminate');
-  expect(wsRoute.action.target?.host).toEqual('localhost');
+  expect(wsRoute.action.targets?.[0]?.host).toEqual('localhost');
-  expect(wsRoute.action.target?.port).toEqual(5000);
+  expect(wsRoute.action.targets?.[0]?.port).toEqual(5000);
   
   // Check WebSocket configuration
   expect(wsRoute.action.websocket).toBeDefined();
@@ -209,10 +209,10 @@ tap.test('SmartProxy: Should create instance with route-based config', async ()
       })
     ],
     defaults: {
-      target: {
+      targets: [{
         host: 'localhost',
         port: 8080
-      },
+      }],
       security: {
         ipAllowList: ['127.0.0.1', '192.168.0.*'],
         maxConnections: 100
@@ -294,13 +294,13 @@ tap.test('Edge Case - Wildcard Domains and Path Matching', async () => {
   const bestMatch = findBestMatchingRoute(routes, { domain: 'api.example.com', path: '/api/users', port: 443 });
   expect(bestMatch).not.toBeUndefined();
   if (bestMatch) {
-    expect(bestMatch.action.target.port).toEqual(3001); // Should match the exact domain route
+    expect(bestMatch.action.targets[0].port).toEqual(3001); // Should match the exact domain route
   }
   
   // Test with a different subdomain - should only match the wildcard route
   const otherMatches = findMatchingRoutes(routes, { domain: 'other.example.com', path: '/api/products', port: 443 });
   expect(otherMatches.length).toEqual(1);
-  expect(otherMatches[0].action.target.port).toEqual(3000); // Should match the wildcard domain route
+  expect(otherMatches[0].action.targets[0].port).toEqual(3000); // Should match the wildcard domain route
 });
 
 tap.test('Edge Case - Disabled Routes', async () => {
@@ -316,7 +316,7 @@ tap.test('Edge Case - Disabled Routes', async () => {
   
   // Should only find the enabled route
   expect(matches.length).toEqual(1);
-  expect(matches[0].action.target.port).toEqual(3000);
+  expect(matches[0].action.targets[0].port).toEqual(3000);
 });
 
 tap.test('Edge Case - Complex Path and Headers Matching', async () => {
@@ -333,10 +333,10 @@ tap.test('Edge Case - Complex Path and Headers Matching', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'internal-api',
         port: 8080
-      },
+      }],
       tls: {
         mode: 'terminate',
         certificate: 'auto'
@@ -376,10 +376,10 @@ tap.test('Edge Case - Port Range Matching', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'backend',
         port: 3000
-      }
+      }]
     },
     name: 'Port Range Route'
   };
@@ -404,10 +404,10 @@ tap.test('Edge Case - Port Range Matching', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'backend',
         port: 3000
-      }
+      }]
     },
     name: 'Multi Range Route'
   };
@@ -452,7 +452,7 @@ tap.test('Wildcard Domain Handling', async () => {
   expect(bestSpecificMatch).not.toBeUndefined();
   if (bestSpecificMatch) {
     // Find which route was matched
-    const matchedPort = bestSpecificMatch.action.target.port;
+    const matchedPort = bestSpecificMatch.action.targets[0].port;
     console.log(`Matched route with port: ${matchedPort}`);
 
     // Verify it's the specific subdomain route (with highest priority)
@@ -465,7 +465,7 @@ tap.test('Wildcard Domain Handling', async () => {
   expect(bestWildcardMatch).not.toBeUndefined();
   if (bestWildcardMatch) {
     // Find which route was matched
-    const matchedPort = bestWildcardMatch.action.target.port;
+    const matchedPort = bestWildcardMatch.action.targets[0].port;
     console.log(`Matched route with port: ${matchedPort}`);
 
     // Verify it's the wildcard subdomain route (with medium priority)
@@ -513,7 +513,7 @@ tap.test('Route Integration - Combining Multiple Route Types', async () => {
   expect(webServerMatch).not.toBeUndefined();
   if (webServerMatch) {
     expect(webServerMatch.action.type).toEqual('forward');
-    expect(webServerMatch.action.target.host).toEqual('web-server');
+    expect(webServerMatch.action.targets[0].host).toEqual('web-server');
   }
   
   // Web server (HTTP redirect via socket handler)
@@ -532,7 +532,7 @@ tap.test('Route Integration - Combining Multiple Route Types', async () => {
   expect(apiMatch).not.toBeUndefined();
   if (apiMatch) {
     expect(apiMatch.action.type).toEqual('forward');
-    expect(apiMatch.action.target.host).toEqual('api-server');
+    expect(apiMatch.action.targets[0].host).toEqual('api-server');
   }
   
   // WebSocket server
@@ -544,7 +544,7 @@ tap.test('Route Integration - Combining Multiple Route Types', async () => {
   expect(wsMatch).not.toBeUndefined();
   if (wsMatch) {
     expect(wsMatch.action.type).toEqual('forward');
-    expect(wsMatch.action.target.host).toEqual('websocket-server');
+    expect(wsMatch.action.targets[0].host).toEqual('websocket-server');
     expect(wsMatch.action.websocket?.enabled).toBeTrue();
   }
   

test/test.route-security-integration.ts

@@ -28,10 +28,10 @@ tap.test('route security should block connections from unauthorized IPs', async
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 9990
-      }
+      }]
     },
     security: {
       // Only allow a non-existent IP
@@ -142,10 +142,10 @@ tap.test('route security with block list should work', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 9992
-      }
+      }]
     },
     security: {  // Security at route level, not action level
       ipBlockList: ['127.0.0.1', '::1', '::ffff:127.0.0.1']
@@ -234,10 +234,10 @@ tap.test('route without security should allow all connections', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 9994
-      }
+      }]
     }
     // No security defined
   }];

test/test.route-security-unit.ts

@@ -10,10 +10,10 @@ tap.test('route security should be correctly configured', async () => {
     },
     action: {
       type: 'forward' as const,
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 8991
-      },
+      }],
       security: {
         ipAllowList: ['192.168.1.1'],
         ipBlockList: ['10.0.0.1']

test/test.route-security.ts

@@ -26,10 +26,10 @@ tap.test('route-specific security should be enforced', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 8877
-      }
+      }]
     },
     security: {
       ipAllowList: ['127.0.0.1', '::1', '::ffff:127.0.0.1']
@@ -108,10 +108,10 @@ tap.test('route-specific IP block list should be enforced', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 8879
-      }
+      }]
     },
     security: {
       ipAllowList: ['0.0.0.0/0', '::/0'],  // Allow all IPs
@@ -215,10 +215,10 @@ tap.test('routes without security should allow all connections', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: '127.0.0.1',
         port: 8881
-      }
+      }]
       // No security section - should allow all
     }
   }];

test/test.route-update-callback.node.ts

@@ -13,10 +13,10 @@ const createRoute = (id: number, domain: string, port: number = 8443) => ({
   },
   action: {
     type: 'forward' as const,
-    target: {
+    targets: [{
       host: 'localhost',
       port: 3000 + id
-    },
+    }],
     tls: {
       mode: 'terminate' as const,
       certificate: 'auto' as const,
@@ -209,10 +209,10 @@ tap.test('should handle route updates when cert manager is not initialized', asy
       },
       action: {
         type: 'forward' as const,
-        target: {
+        targets: [{
           host: 'localhost',
           port: 3000
-        }
+        }]
       }
     }]
   });

test/test.route-utils.ts

@@ -134,10 +134,10 @@ tap.test('Route Validation - validateRouteAction', async () => {
   // Valid forward action
   const validForwardAction: IRouteAction = {
     type: 'forward',
-    target: {
+    targets: [{
       host: 'localhost',
       port: 3000
-    }
+    }]
   };
   const validForwardResult = validateRouteAction(validForwardAction);
   expect(validForwardResult.valid).toBeTrue();
@@ -154,14 +154,14 @@ tap.test('Route Validation - validateRouteAction', async () => {
   expect(validSocketResult.valid).toBeTrue();
   expect(validSocketResult.errors.length).toEqual(0);
   
-  // Invalid action (missing target)
+  // Invalid action (missing targets)
   const invalidAction: IRouteAction = {
     type: 'forward'
   };
   const invalidResult = validateRouteAction(invalidAction);
   expect(invalidResult.valid).toBeFalse();
   expect(invalidResult.errors.length).toBeGreaterThan(0);
-  expect(invalidResult.errors[0]).toInclude('Target is required');
+  expect(invalidResult.errors[0]).toInclude('Targets array is required');
   
   // Invalid action (missing socket handler)
   const invalidSocketAction: IRouteAction = {
@@ -180,7 +180,7 @@ tap.test('Route Validation - validateRouteConfig', async () => {
   expect(validResult.valid).toBeTrue();
   expect(validResult.errors.length).toEqual(0);
   
-  // Invalid route config (missing target)
+  // Invalid route config (missing targets)
   const invalidRoute: IRouteConfig = {
     match: {
       domains: 'example.com',
@@ -309,16 +309,16 @@ tap.test('Route Utilities - mergeRouteConfigs', async () => {
   const actionOverride: Partial<IRouteConfig> = {
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'new-host.local',
         port: 5000
-      }
+      }]
     }
   };
   
   const actionMergedRoute = mergeRouteConfigs(baseRoute, actionOverride);
-  expect(actionMergedRoute.action.target.host).toEqual('new-host.local');
+  expect(actionMergedRoute.action.targets?.[0]?.host).toEqual('new-host.local');
-  expect(actionMergedRoute.action.target.port).toEqual(5000);
+  expect(actionMergedRoute.action.targets?.[0]?.port).toEqual(5000);
   
   // Test replacing action with socket handler
   const typeChangeOverride: Partial<IRouteConfig> = {
@@ -336,7 +336,7 @@ tap.test('Route Utilities - mergeRouteConfigs', async () => {
   const typeChangedRoute = mergeRouteConfigs(baseRoute, typeChangeOverride);
   expect(typeChangedRoute.action.type).toEqual('socket-handler');
   expect(typeChangedRoute.action.socketHandler).toBeDefined();
-  expect(typeChangedRoute.action.target).toBeUndefined();
+  expect(typeChangedRoute.action.targets).toBeUndefined();
 });
 
 tap.test('Route Matching - routeMatchesDomain', async () => {
@@ -379,10 +379,10 @@ tap.test('Route Matching - routeMatchesPort', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 3000
-      }
+      }]
     }
   };
   
@@ -393,10 +393,10 @@ tap.test('Route Matching - routeMatchesPort', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 3000
-      }
+      }]
     }
   };
   
@@ -427,10 +427,10 @@ tap.test('Route Matching - routeMatchesPath', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 3000
-      }
+      }]
     }
   };
   
@@ -443,10 +443,10 @@ tap.test('Route Matching - routeMatchesPath', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 3000
-      }
+      }]
     }
   };
   
@@ -458,10 +458,10 @@ tap.test('Route Matching - routeMatchesPath', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 3000
-      }
+      }]
     }
   };
   
@@ -494,10 +494,10 @@ tap.test('Route Matching - routeMatchesHeaders', async () => {
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: 'localhost',
         port: 3000
-      }
+      }]
     }
   };
   
@@ -641,7 +641,7 @@ tap.test('Route Utilities - cloneRoute', async () => {
   expect(clonedRoute.name).toEqual(originalRoute.name);
   expect(clonedRoute.match.domains).toEqual(originalRoute.match.domains);
   expect(clonedRoute.action.type).toEqual(originalRoute.action.type);
-  expect(clonedRoute.action.target.port).toEqual(originalRoute.action.target.port);
+  expect(clonedRoute.action.targets?.[0]?.port).toEqual(originalRoute.action.targets?.[0]?.port);
   
   // Modify the clone and check that the original is unchanged
   clonedRoute.name = 'Modified Clone';
@@ -656,8 +656,8 @@ tap.test('Route Helpers - createHttpRoute', async () => {
   expect(route.match.domains).toEqual('example.com');
   expect(route.match.ports).toEqual(80);
   expect(route.action.type).toEqual('forward');
-  expect(route.action.target.host).toEqual('localhost');
+  expect(route.action.targets?.[0]?.host).toEqual('localhost');
-  expect(route.action.target.port).toEqual(3000);
+  expect(route.action.targets?.[0]?.port).toEqual(3000);
   
   const validationResult = validateRouteConfig(route);
   expect(validationResult.valid).toBeTrue();
@@ -790,11 +790,11 @@ tap.test('Route Helpers - createLoadBalancerRoute', async () => {
   expect(route.match.domains).toEqual('loadbalancer.example.com');
   expect(route.match.ports).toEqual(443);
   expect(route.action.type).toEqual('forward');
-  expect(Array.isArray(route.action.target.host)).toBeTrue();
+  expect(route.action.targets).toBeDefined();
-  if (Array.isArray(route.action.target.host)) {
+  if (route.action.targets && Array.isArray(route.action.targets[0]?.host)) {
-    expect(route.action.target.host.length).toEqual(3);
+    expect((route.action.targets[0].host as string[]).length).toEqual(3);
   }
-  expect(route.action.target.port).toEqual(8080);
+  expect(route.action.targets?.[0]?.port).toEqual(8080);
   expect(route.action.tls.mode).toEqual('terminate');
   
   const validationResult = validateRouteConfig(route);
@@ -819,7 +819,7 @@ tap.test('Route Patterns - createApiGatewayRoute', async () => {
   expect(apiGatewayRoute.match.domains).toEqual('api.example.com');
   expect(apiGatewayRoute.match.path).toInclude('/v1');
   expect(apiGatewayRoute.action.type).toEqual('forward');
-  expect(apiGatewayRoute.action.target.port).toEqual(3000);
+  expect(apiGatewayRoute.action.targets?.[0]?.port).toEqual(3000);
   
   // Check TLS configuration
   if (apiGatewayRoute.action.tls) {
@@ -854,7 +854,7 @@ tap.test('Route Patterns - createWebSocketPattern', async () => {
   expect(wsRoute.match.domains).toEqual('ws.example.com');
   expect(wsRoute.match.path).toEqual('/socket');
   expect(wsRoute.action.type).toEqual('forward');
-  expect(wsRoute.action.target.port).toEqual(3000);
+  expect(wsRoute.action.targets?.[0]?.port).toEqual(3000);
   
   // Check TLS configuration
   if (wsRoute.action.tls) {
@@ -891,8 +891,8 @@ tap.test('Route Patterns - createLoadBalancerRoute pattern', async () => {
     expect(lbRoute.action.type).toEqual('forward');
     
     // Check target hosts
-    if (Array.isArray(lbRoute.action.target.host)) {
+    if (lbRoute.action.targets && Array.isArray(lbRoute.action.targets[0]?.host)) {
-      expect(lbRoute.action.target.host.length).toEqual(3);
+      expect((lbRoute.action.targets[0].host as string[]).length).toEqual(3);
     }
     
     // Check TLS configuration

test/test.router.ts

@@ -37,10 +37,10 @@ function createRouteConfig(
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: destinationIp,
         port: destinationPort
-      }
+      }]
     }
   };
 }

test/test.shared-security-manager-limits.node.ts

@@ -0,0 +1,157 @@
+import { expect, tap } from '@git.zone/tstest/tapbundle';
+import { SharedSecurityManager } from '../ts/core/utils/shared-security-manager.js';
+import type { IRouteConfig, IRouteContext } from '../ts/proxies/smart-proxy/models/route-types.js';
+
+let securityManager: SharedSecurityManager;
+
+tap.test('Setup SharedSecurityManager', async () => {
+  securityManager = new SharedSecurityManager({
+    maxConnectionsPerIP: 5,
+    connectionRateLimitPerMinute: 10,
+    cleanupIntervalMs: 1000 // 1 second for faster testing
+  });
+});
+
+tap.test('IP connection tracking', async () => {
+  const testIP = '192.168.1.100';
+  
+  // Track multiple connections
+  securityManager.trackConnectionByIP(testIP, 'conn1');
+  securityManager.trackConnectionByIP(testIP, 'conn2');
+  securityManager.trackConnectionByIP(testIP, 'conn3');
+  
+  // Verify connection count
+  expect(securityManager.getConnectionCountByIP(testIP)).toEqual(3);
+  
+  // Remove a connection
+  securityManager.removeConnectionByIP(testIP, 'conn2');
+  expect(securityManager.getConnectionCountByIP(testIP)).toEqual(2);
+  
+  // Remove remaining connections
+  securityManager.removeConnectionByIP(testIP, 'conn1');
+  securityManager.removeConnectionByIP(testIP, 'conn3');
+  expect(securityManager.getConnectionCountByIP(testIP)).toEqual(0);
+});
+
+tap.test('Per-IP connection limits validation', async () => {
+  const testIP = '192.168.1.101';
+  
+  // Track connections up to limit
+  for (let i = 1; i <= 5; i++) {
+    // Validate BEFORE tracking the connection (checking if we can add a new connection)
+    const result = securityManager.validateIP(testIP);
+    expect(result.allowed).toBeTrue();
+    // Now track the connection
+    securityManager.trackConnectionByIP(testIP, `conn${i}`);
+  }
+  
+  // Verify we're at the limit
+  expect(securityManager.getConnectionCountByIP(testIP)).toEqual(5);
+  
+  // Next connection should be rejected (we're already at 5)
+  const result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeFalse();
+  expect(result.reason).toInclude('Maximum connections per IP');
+  
+  // Clean up
+  for (let i = 1; i <= 5; i++) {
+    securityManager.removeConnectionByIP(testIP, `conn${i}`);
+  }
+});
+
+tap.test('Connection rate limiting', async () => {
+  const testIP = '192.168.1.102';
+  
+  // Make connections at the rate limit
+  // Note: validateIP() already tracks timestamps internally for rate limiting
+  for (let i = 0; i < 10; i++) {
+    const result = securityManager.validateIP(testIP);
+    expect(result.allowed).toBeTrue();
+  }
+  
+  // Next connection should exceed rate limit
+  const result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeFalse();
+  expect(result.reason).toInclude('Connection rate limit');
+});
+
+tap.test('Route-level connection limits', async () => {
+  const route: IRouteConfig = {
+    name: 'test-route',
+    match: { ports: 443 },
+    action: { type: 'forward', targets: [{ host: 'localhost', port: 8080 }] },
+    security: {
+      maxConnections: 3
+    }
+  };
+  
+  const context: IRouteContext = {
+    port: 443,
+    clientIp: '192.168.1.103',
+    serverIp: '0.0.0.0',
+    timestamp: Date.now(),
+    connectionId: 'test-conn',
+    isTls: true
+  };
+  
+  // Test with connection counts below limit
+  expect(securityManager.isAllowed(route, context, 0)).toBeTrue();
+  expect(securityManager.isAllowed(route, context, 2)).toBeTrue();
+  
+  // Test at limit
+  expect(securityManager.isAllowed(route, context, 3)).toBeFalse();
+  
+  // Test above limit
+  expect(securityManager.isAllowed(route, context, 5)).toBeFalse();
+});
+
+tap.test('IPv4/IPv6 normalization', async () => {
+  const ipv4 = '127.0.0.1';
+  const ipv4Mapped = '::ffff:127.0.0.1';
+  
+  // Track connection with IPv4
+  securityManager.trackConnectionByIP(ipv4, 'conn1');
+  
+  // Both representations should show the same connection
+  expect(securityManager.getConnectionCountByIP(ipv4)).toEqual(1);
+  expect(securityManager.getConnectionCountByIP(ipv4Mapped)).toEqual(1);
+  
+  // Track another connection with IPv6 representation
+  securityManager.trackConnectionByIP(ipv4Mapped, 'conn2');
+  
+  // Both should show 2 connections
+  expect(securityManager.getConnectionCountByIP(ipv4)).toEqual(2);
+  expect(securityManager.getConnectionCountByIP(ipv4Mapped)).toEqual(2);
+  
+  // Clean up
+  securityManager.removeConnectionByIP(ipv4, 'conn1');
+  securityManager.removeConnectionByIP(ipv4Mapped, 'conn2');
+});
+
+tap.test('Automatic cleanup of expired data', async (tools) => {
+  const testIP = '192.168.1.104';
+  
+  // Track a connection and then remove it
+  securityManager.trackConnectionByIP(testIP, 'temp-conn');
+  securityManager.removeConnectionByIP(testIP, 'temp-conn');
+  
+  // Add some rate limit entries (they expire after 1 minute)
+  for (let i = 0; i < 5; i++) {
+    securityManager.validateIP(testIP);
+  }
+  
+  // Wait for cleanup interval (set to 1 second in our test)
+  await tools.delayFor(1500);
+  
+  // The IP should be cleaned up since it has no connections
+  // Note: We can't directly check the internal map, but we can verify
+  // that a new connection is allowed (fresh rate limit)
+  const result = securityManager.validateIP(testIP);
+  expect(result.allowed).toBeTrue();
+});
+
+tap.test('Cleanup SharedSecurityManager', async () => {
+  securityManager.clearIPTracking();
+});
+
+tap.start();

test/test.smartacme-integration.ts

@@ -15,10 +15,10 @@ tap.test('should create a SmartCertManager instance', async () => {
       },
       action: {
         type: 'forward',
-        target: { 
+        targets: [{ 
           host: 'localhost', 
           port: 3000 
-        },
+        }],
         tls: {
           mode: 'terminate',
           certificate: 'auto',

test/test.smartproxy.ts

@@ -73,10 +73,10 @@ tap.test('setup port proxy test environment', async () => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: TEST_SERVER_PORT
-          }
+          }]
         }
       }
     ],
@@ -112,10 +112,10 @@ tap.test('should forward TCP connections to custom host', async () => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: TEST_SERVER_PORT
-          }
+          }]
         }
       }
     ],
@@ -157,10 +157,10 @@ tap.test('should forward connections to custom IP', async () => {
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: '127.0.0.1',
             port: targetServerPort
-          }
+          }]
         }
       }
     ],
@@ -252,10 +252,10 @@ tap.test('should support optional source IP preservation in chained proxies', as
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: PROXY_PORT + 5
-          }
+          }]
         }
       }
     ],
@@ -273,10 +273,10 @@ tap.test('should support optional source IP preservation in chained proxies', as
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: TEST_SERVER_PORT
-          }
+          }]
         }
       }
     ],
@@ -311,10 +311,10 @@ tap.test('should support optional source IP preservation in chained proxies', as
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: PROXY_PORT + 7
-          }
+          }]
         }
       }
     ],
@@ -334,10 +334,10 @@ tap.test('should support optional source IP preservation in chained proxies', as
         },
         action: {
           type: 'forward',
-          target: {
+          targets: [{
             host: 'localhost',
             port: TEST_SERVER_PORT
-          }
+          }]
         }
       }
     ],
@@ -377,10 +377,10 @@ tap.test('should use round robin for multiple target hosts in domain config', as
     },
     action: {
       type: 'forward' as const,
-      target: {
+      targets: [{
         host: ['hostA', 'hostB'], // Array of hosts for round-robin
         port: 80
-      }
+      }]
     }
   };
 
@@ -400,9 +400,9 @@ tap.test('should use round robin for multiple target hosts in domain config', as
 
   // For route-based approach, the actual round-robin logic happens in connection handling
   // Just make sure our config has the expected hosts
-  expect(Array.isArray(routeConfig.action.target.host)).toBeTrue();
+  expect(Array.isArray(routeConfig.action.targets![0].host)).toBeTrue();
-  expect(routeConfig.action.target.host).toContain('hostA');
+  expect(routeConfig.action.targets![0].host).toContain('hostA');
-  expect(routeConfig.action.target.host).toContain('hostB');
+  expect(routeConfig.action.targets![0].host).toContain('hostB');
 });
 
 // CLEANUP: Tear down all servers and proxies

test/test.stuck-connection-cleanup.node.ts

@@ -30,7 +30,7 @@ tap.test('stuck connection cleanup - verify connections to hanging backends are
       match: { ports: 8589 },
       action: {
         type: 'forward',
-        target: { host: 'localhost', port: 9997 }
+        targets: [{ host: 'localhost', port: 9997 }]
       }
     }],
     keepAlive: true,

test/test.websocket-keepalive.node.ts

@@ -17,7 +17,7 @@ tap.test('websocket keep-alive settings for SNI passthrough', async (tools) => {
         match: { ports: 8443, domains: 'test.local' },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: 9443 },
+          targets: [{ host: 'localhost', port: 9443 }],
           tls: { mode: 'passthrough' }
         }
       }
@@ -108,7 +108,7 @@ tap.test('long-lived connection survival test', async (tools) => {
         match: { ports: 8444 },
         action: {
           type: 'forward',
-          target: { host: 'localhost', port: 9444 }
+          targets: [{ host: 'localhost', port: 9444 }]
         }
       }
     ]

test/test.zombie-connection-cleanup.node.ts

@@ -52,10 +52,10 @@ tap.test('zombie connection cleanup - verify inactivity check detects and cleans
       match: { ports: 8591 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 9998
-        }
+        }]
       }
     }]
   });
@@ -71,10 +71,10 @@ tap.test('zombie connection cleanup - verify inactivity check detects and cleans
       match: { ports: 8590 },
       action: {
         type: 'forward',
-        target: {
+        targets: [{
           host: 'localhost',
           port: 8591
-        }
+        }]
       }
     }]
   });

ts/core/utils/log-deduplicator.ts

@@ -0,0 +1,370 @@
+import { logger } from './logger.js';
+
+interface ILogEvent {
+  level: 'info' | 'warn' | 'error' | 'debug';
+  message: string;
+  data?: any;
+  count: number;
+  firstSeen: number;
+  lastSeen: number;
+}
+
+interface IAggregatedEvent {
+  key: string;
+  events: Map<string, ILogEvent>;
+  flushTimer?: NodeJS.Timeout;
+}
+
+/**
+ * Log deduplication utility to reduce log spam for repetitive events
+ */
+export class LogDeduplicator {
+  private globalFlushTimer?: NodeJS.Timeout;
+  private aggregatedEvents: Map<string, IAggregatedEvent> = new Map();
+  private flushInterval: number = 5000; // 5 seconds
+  private maxBatchSize: number = 100;
+  private rapidEventThreshold: number = 50; // Flush early if this many events in 1 second
+  private lastRapidCheck: number = Date.now();
+  
+  constructor(flushInterval?: number) {
+    if (flushInterval) {
+      this.flushInterval = flushInterval;
+    }
+    
+    // Set up global periodic flush to ensure logs are emitted regularly
+    this.globalFlushTimer = setInterval(() => {
+      this.flushAll();
+    }, this.flushInterval * 2); // Flush everything every 2x the normal interval
+    
+    if (this.globalFlushTimer.unref) {
+      this.globalFlushTimer.unref();
+    }
+  }
+  
+  /**
+   * Log a deduplicated event
+   * @param key - Aggregation key (e.g., 'connection-rejected', 'cleanup-batch')
+   * @param level - Log level
+   * @param message - Log message template
+   * @param data - Additional data
+   * @param dedupeKey - Deduplication key within the aggregation (e.g., IP address, reason)
+   */
+  public log(
+    key: string,
+    level: 'info' | 'warn' | 'error' | 'debug',
+    message: string,
+    data?: any,
+    dedupeKey?: string
+  ): void {
+    const eventKey = dedupeKey || message;
+    const now = Date.now();
+    
+    if (!this.aggregatedEvents.has(key)) {
+      this.aggregatedEvents.set(key, {
+        key,
+        events: new Map(),
+        flushTimer: undefined
+      });
+    }
+    
+    const aggregated = this.aggregatedEvents.get(key)!;
+    
+    if (aggregated.events.has(eventKey)) {
+      const event = aggregated.events.get(eventKey)!;
+      event.count++;
+      event.lastSeen = now;
+      if (data) {
+        event.data = { ...event.data, ...data };
+      }
+    } else {
+      aggregated.events.set(eventKey, {
+        level,
+        message,
+        data,
+        count: 1,
+        firstSeen: now,
+        lastSeen: now
+      });
+    }
+    
+    // Check for rapid events (many events in short time)
+    const totalEvents = Array.from(aggregated.events.values()).reduce((sum, e) => sum + e.count, 0);
+    
+    // If we're getting flooded with events, flush more frequently
+    if (now - this.lastRapidCheck < 1000 && totalEvents >= this.rapidEventThreshold) {
+      this.flush(key);
+      this.lastRapidCheck = now;
+    } else if (aggregated.events.size >= this.maxBatchSize) {
+      // Check if we should flush due to size
+      this.flush(key);
+    } else if (!aggregated.flushTimer) {
+      // Schedule flush
+      aggregated.flushTimer = setTimeout(() => {
+        this.flush(key);
+      }, this.flushInterval);
+      
+      if (aggregated.flushTimer.unref) {
+        aggregated.flushTimer.unref();
+      }
+    }
+    
+    // Update rapid check time
+    if (now - this.lastRapidCheck >= 1000) {
+      this.lastRapidCheck = now;
+    }
+  }
+  
+  /**
+   * Flush aggregated events for a specific key
+   */
+  public flush(key: string): void {
+    const aggregated = this.aggregatedEvents.get(key);
+    if (!aggregated || aggregated.events.size === 0) {
+      return;
+    }
+    
+    if (aggregated.flushTimer) {
+      clearTimeout(aggregated.flushTimer);
+      aggregated.flushTimer = undefined;
+    }
+    
+    // Emit aggregated log based on the key
+    switch (key) {
+      case 'connection-rejected':
+        this.flushConnectionRejections(aggregated);
+        break;
+      case 'connection-cleanup':
+        this.flushConnectionCleanups(aggregated);
+        break;
+      case 'connection-terminated':
+        this.flushConnectionTerminations(aggregated);
+        break;
+      case 'ip-rejected':
+        this.flushIPRejections(aggregated);
+        break;
+      default:
+        this.flushGeneric(aggregated);
+    }
+    
+    // Clear events
+    aggregated.events.clear();
+  }
+  
+  /**
+   * Flush all pending events
+   */
+  public flushAll(): void {
+    for (const key of this.aggregatedEvents.keys()) {
+      this.flush(key);
+    }
+  }
+  
+  private flushConnectionRejections(aggregated: IAggregatedEvent): void {
+    const totalCount = Array.from(aggregated.events.values()).reduce((sum, e) => sum + e.count, 0);
+    const byReason = new Map<string, number>();
+    
+    for (const [, event] of aggregated.events) {
+      const reason = event.data?.reason || 'unknown';
+      byReason.set(reason, (byReason.get(reason) || 0) + event.count);
+    }
+    
+    const reasonSummary = Array.from(byReason.entries())
+      .sort((a, b) => b[1] - a[1])
+      .map(([reason, count]) => `${reason}: ${count}`)
+      .join(', ');
+    
+    const duration = Date.now() - Math.min(...Array.from(aggregated.events.values()).map(e => e.firstSeen));
+    logger.log('warn', `[SUMMARY] Rejected ${totalCount} connections in ${Math.round(duration/1000)}s`, {
+      reasons: reasonSummary,
+      uniqueIPs: aggregated.events.size,
+      component: 'connection-dedup'
+    });
+  }
+  
+  private flushConnectionCleanups(aggregated: IAggregatedEvent): void {
+    const totalCount = Array.from(aggregated.events.values()).reduce((sum, e) => sum + e.count, 0);
+    const byReason = new Map<string, number>();
+    
+    for (const [, event] of aggregated.events) {
+      const reason = event.data?.reason || 'normal';
+      byReason.set(reason, (byReason.get(reason) || 0) + event.count);
+    }
+    
+    const reasonSummary = Array.from(byReason.entries())
+      .sort((a, b) => b[1] - a[1])
+      .slice(0, 5) // Top 5 reasons
+      .map(([reason, count]) => `${reason}: ${count}`)
+      .join(', ');
+    
+    logger.log('info', `Cleaned up ${totalCount} connections`, {
+      reasons: reasonSummary,
+      duration: Date.now() - Math.min(...Array.from(aggregated.events.values()).map(e => e.firstSeen)),
+      component: 'connection-dedup'
+    });
+  }
+  
+  private flushConnectionTerminations(aggregated: IAggregatedEvent): void {
+    const totalCount = Array.from(aggregated.events.values()).reduce((sum, e) => sum + e.count, 0);
+    const byReason = new Map<string, number>();
+    const byIP = new Map<string, number>();
+    let lastActiveCount = 0;
+    
+    for (const [, event] of aggregated.events) {
+      const reason = event.data?.reason || 'unknown';
+      const ip = event.data?.remoteIP || 'unknown';
+      
+      byReason.set(reason, (byReason.get(reason) || 0) + event.count);
+      
+      // Track by IP
+      if (ip !== 'unknown') {
+        byIP.set(ip, (byIP.get(ip) || 0) + event.count);
+      }
+      
+      // Track the last active connection count
+      if (event.data?.activeConnections !== undefined) {
+        lastActiveCount = event.data.activeConnections;
+      }
+    }
+    
+    const reasonSummary = Array.from(byReason.entries())
+      .sort((a, b) => b[1] - a[1])
+      .slice(0, 5) // Top 5 reasons
+      .map(([reason, count]) => `${reason}: ${count}`)
+      .join(', ');
+    
+    // Show top IPs if there are many different ones
+    let ipInfo = '';
+    if (byIP.size > 3) {
+      const topIPs = Array.from(byIP.entries())
+        .sort((a, b) => b[1] - a[1])
+        .slice(0, 3)
+        .map(([ip, count]) => `${ip} (${count})`)
+        .join(', ');
+      ipInfo = `, from ${byIP.size} IPs (top: ${topIPs})`;
+    } else if (byIP.size > 0) {
+      ipInfo = `, IPs: ${Array.from(byIP.keys()).join(', ')}`;
+    }
+    
+    const duration = Date.now() - Math.min(...Array.from(aggregated.events.values()).map(e => e.firstSeen));
+    
+    // Special handling for localhost connections (HttpProxy)
+    const localhostCount = byIP.get('::ffff:127.0.0.1') || 0;
+    if (localhostCount > 0 && byIP.size === 1) {
+      // All connections are from localhost (HttpProxy)
+      logger.log('info', `[SUMMARY] ${totalCount} HttpProxy connections terminated in ${Math.round(duration/1000)}s`, {
+        reasons: reasonSummary,
+        activeConnections: lastActiveCount,
+        component: 'connection-dedup'
+      });
+    } else {
+      logger.log('info', `[SUMMARY] ${totalCount} connections terminated in ${Math.round(duration/1000)}s`, {
+        reasons: reasonSummary,
+        activeConnections: lastActiveCount,
+        uniqueReasons: byReason.size,
+        ...(ipInfo ? { ips: ipInfo } : {}),
+        component: 'connection-dedup'
+      });
+    }
+  }
+  
+  private flushIPRejections(aggregated: IAggregatedEvent): void {
+    const byIP = new Map<string, { count: number; reasons: Set<string> }>();
+    const allReasons = new Map<string, number>();
+    
+    for (const [ip, event] of aggregated.events) {
+      if (!byIP.has(ip)) {
+        byIP.set(ip, { count: 0, reasons: new Set() });
+      }
+      const ipData = byIP.get(ip)!;
+      ipData.count += event.count;
+      if (event.data?.reason) {
+        ipData.reasons.add(event.data.reason);
+        // Track overall reason counts
+        allReasons.set(event.data.reason, (allReasons.get(event.data.reason) || 0) + event.count);
+      }
+    }
+    
+    // Create reason summary
+    const reasonSummary = Array.from(allReasons.entries())
+      .sort((a, b) => b[1] - a[1])
+      .map(([reason, count]) => `${reason}: ${count}`)
+      .join(', ');
+    
+    // Log top offenders
+    const topOffenders = Array.from(byIP.entries())
+      .sort((a, b) => b[1].count - a[1].count)
+      .slice(0, 10)
+      .map(([ip, data]) => `${ip} (${data.count}x, ${Array.from(data.reasons).join('/')})`)
+      .join(', ');
+    
+    const totalRejections = Array.from(byIP.values()).reduce((sum, data) => sum + data.count, 0);
+    
+    const duration = Date.now() - Math.min(...Array.from(aggregated.events.values()).map(e => e.firstSeen));
+    logger.log('warn', `[SUMMARY] Rejected ${totalRejections} connections from ${byIP.size} IPs in ${Math.round(duration/1000)}s (${reasonSummary})`, {
+      topOffenders,
+      component: 'ip-dedup'
+    });
+  }
+  
+  private flushGeneric(aggregated: IAggregatedEvent): void {
+    const totalCount = Array.from(aggregated.events.values()).reduce((sum, e) => sum + e.count, 0);
+    const level = aggregated.events.values().next().value?.level || 'info';
+    
+    // Special handling for IP cleanup events
+    if (aggregated.key === 'ip-cleanup') {
+      const totalCleaned = Array.from(aggregated.events.values()).reduce((sum, e) => {
+        return sum + (e.data?.cleanedIPs || 0) + (e.data?.cleanedRateLimits || 0);
+      }, 0);
+      
+      if (totalCleaned > 0) {
+        logger.log(level as any, `IP tracking cleanup: removed ${totalCleaned} entries across ${totalCount} cleanup cycles`, {
+          duration: Date.now() - Math.min(...Array.from(aggregated.events.values()).map(e => e.firstSeen)),
+          component: 'log-dedup'
+        });
+      }
+    } else {
+      logger.log(level as any, `${aggregated.key}: ${totalCount} events`, {
+        uniqueEvents: aggregated.events.size,
+        duration: Date.now() - Math.min(...Array.from(aggregated.events.values()).map(e => e.firstSeen)),
+        component: 'log-dedup'
+      });
+    }
+  }
+  
+  /**
+   * Cleanup and stop deduplication
+   */
+  public cleanup(): void {
+    this.flushAll();
+    
+    if (this.globalFlushTimer) {
+      clearInterval(this.globalFlushTimer);
+      this.globalFlushTimer = undefined;
+    }
+    
+    for (const aggregated of this.aggregatedEvents.values()) {
+      if (aggregated.flushTimer) {
+        clearTimeout(aggregated.flushTimer);
+      }
+    }
+    this.aggregatedEvents.clear();
+  }
+}
+
+// Global instance for connection-related log deduplication
+export const connectionLogDeduplicator = new LogDeduplicator(5000); // 5 second batches
+
+// Ensure logs are flushed on process exit
+process.on('beforeExit', () => {
+  connectionLogDeduplicator.flushAll();
+});
+
+process.on('SIGINT', () => {
+  connectionLogDeduplicator.cleanup();
+  process.exit(0);
+});
+
+process.on('SIGTERM', () => {
+  connectionLogDeduplicator.cleanup();
+  process.exit(0);
+});

ts/core/utils/shared-security-manager.ts

@@ -13,7 +13,8 @@ import {
   trackConnection,
   removeConnection,
   cleanupExpiredRateLimits,
-  parseBasicAuthHeader
+  parseBasicAuthHeader,
+  normalizeIP
 } from './security-utils.js';
 
 /**
@@ -78,7 +79,15 @@ export class SharedSecurityManager {
    * @returns Number of connections from this IP
    */
   public getConnectionCountByIP(ip: string): number {
-    return this.connectionsByIP.get(ip)?.connections.size || 0;
+    // Check all normalized variants of the IP
+    const variants = normalizeIP(ip);
+    for (const variant of variants) {
+      const info = this.connectionsByIP.get(variant);
+      if (info) {
+        return info.connections.size;
+      }
+    }
+    return 0;
   }
   
   /**
@@ -88,7 +97,19 @@ export class SharedSecurityManager {
    * @param connectionId - The connection ID to associate
    */
   public trackConnectionByIP(ip: string, connectionId: string): void {
-    trackConnection(ip, connectionId, this.connectionsByIP);
+    // Check if any variant already exists
+    const variants = normalizeIP(ip);
+    let existingKey: string | null = null;
+    
+    for (const variant of variants) {
+      if (this.connectionsByIP.has(variant)) {
+        existingKey = variant;
+        break;
+      }
+    }
+    
+    // Use existing key or the original IP
+    trackConnection(existingKey || ip, connectionId, this.connectionsByIP);
   }
   
   /**
@@ -98,7 +119,15 @@ export class SharedSecurityManager {
    * @param connectionId - The connection ID to remove
    */
   public removeConnectionByIP(ip: string, connectionId: string): void {
-    removeConnection(ip, connectionId, this.connectionsByIP);
+    // Check all variants to find where the connection is tracked
+    const variants = normalizeIP(ip);
+    
+    for (const variant of variants) {
+      if (this.connectionsByIP.has(variant)) {
+        removeConnection(variant, connectionId, this.connectionsByIP);
+        break;
+      }
+    }
   }
   
   /**
@@ -152,9 +181,10 @@ export class SharedSecurityManager {
    * 
    * @param route - The route to check
    * @param context - The request context
+   * @param routeConnectionCount - Current connection count for this route (optional)
    * @returns Whether access is allowed
    */
-  public isAllowed(route: IRouteConfig, context: IRouteContext): boolean {
+  public isAllowed(route: IRouteConfig, context: IRouteContext, routeConnectionCount?: number): boolean {
     if (!route.security) {
       return true; // No security restrictions
     }
@@ -165,6 +195,14 @@ export class SharedSecurityManager {
       return false;
     }
     
+    // --- Route-level connection limit ---
+    if (route.security.maxConnections !== undefined && routeConnectionCount !== undefined) {
+      if (routeConnectionCount >= route.security.maxConnections) {
+        this.logger?.debug?.(`Route connection limit (${route.security.maxConnections}) exceeded for route ${route.name || 'unnamed'}`);
+        return false;
+      }
+    }
+    
     // --- Rate limiting ---
     if (route.security.rateLimit?.enabled && !this.isWithinRateLimit(route, context)) {
       this.logger?.debug?.(`Rate limit exceeded for route ${route.name || 'unnamed'}`);
@@ -304,6 +342,20 @@ export class SharedSecurityManager {
     // Clean up rate limits
     cleanupExpiredRateLimits(this.rateLimits, this.logger);
     
+    // Clean up IP connection tracking
+    let cleanedIPs = 0;
+    for (const [ip, info] of this.connectionsByIP.entries()) {
+      // Remove IPs with no active connections and no recent timestamps
+      if (info.connections.size === 0 && info.timestamps.length === 0) {
+        this.connectionsByIP.delete(ip);
+        cleanedIPs++;
+      }
+    }
+    
+    if (cleanedIPs > 0 && this.logger?.debug) {
+      this.logger.debug(`Cleaned up ${cleanedIPs} IPs with no active connections`);
+    }
+    
     // IP filter cache doesn't need cleanup (tied to routes)
   }
   

ts/proxies/http-proxy/http-proxy.ts

@@ -17,6 +17,8 @@ import { WebSocketHandler } from './websocket-handler.js';
 import { HttpRouter } from '../../routing/router/index.js';
 import { cleanupSocket } from '../../core/utils/socket-utils.js';
 import { FunctionCache } from './function-cache.js';
+import { SecurityManager } from './security-manager.js';
+import { connectionLogDeduplicator } from '../../core/utils/log-deduplicator.js';
 
 /**
  * HttpProxy provides a reverse proxy with TLS termination, WebSocket support,
@@ -43,6 +45,7 @@ export class HttpProxy implements IMetricsTracker {
   private router = new HttpRouter(); // Unified HTTP router
   private routeManager: RouteManager;
   private functionCache: FunctionCache;
+  private securityManager: SecurityManager;
   
   // State tracking
   public socketMap = new plugins.lik.ObjectMap<plugins.net.Socket>();
@@ -114,6 +117,14 @@ export class HttpProxy implements IMetricsTracker {
       defaultTtl: this.options.functionCacheTtl || 5000
     });
     
+    // Initialize security manager
+    this.securityManager = new SecurityManager(
+      this.logger, 
+      [], 
+      this.options.maxConnectionsPerIP || 100, 
+      this.options.connectionRateLimitPerMinute || 300
+    );
+
     // Initialize other components
     this.certificateManager = new CertificateManager(this.options);
     this.connectionPool = new ConnectionPool(this.options);
@@ -269,14 +280,113 @@ export class HttpProxy implements IMetricsTracker {
    */
   private setupConnectionTracking(): void {
     this.httpsServer.on('connection', (connection: plugins.net.Socket) => {
-      // Check if max connections reached
+      let remoteIP = connection.remoteAddress || '';
+      const connectionId = Math.random().toString(36).substring(2, 15);
+      const isFromSmartProxy = this.options.portProxyIntegration && connection.remoteAddress?.includes('127.0.0.1');
+      
+      // For SmartProxy connections, wait for CLIENT_IP header
+      if (isFromSmartProxy) {
+        let headerBuffer = Buffer.alloc(0);
+        let headerParsed = false;
+        
+        const parseHeader = (data: Buffer) => {
+          if (headerParsed) return data;
+          
+          headerBuffer = Buffer.concat([headerBuffer, data]);
+          const headerStr = headerBuffer.toString();
+          const headerEnd = headerStr.indexOf('\r\n');
+          
+          if (headerEnd !== -1) {
+            const header = headerStr.substring(0, headerEnd);
+            if (header.startsWith('CLIENT_IP:')) {
+              remoteIP = header.substring(10); // Extract IP after "CLIENT_IP:"
+              this.logger.debug(`Extracted client IP from SmartProxy: ${remoteIP}`);
+            }
+            headerParsed = true;
+            
+            // Store the real IP on the connection
+            (connection as any)._realRemoteIP = remoteIP;
+            
+            // Validate the real IP
+            const ipValidation = this.securityManager.validateIP(remoteIP);
+            if (!ipValidation.allowed) {
+              connectionLogDeduplicator.log(
+                'ip-rejected',
+                'warn',
+                `HttpProxy connection rejected (via SmartProxy)`,
+                { remoteIP, reason: ipValidation.reason, component: 'http-proxy' },
+                remoteIP
+              );
+              connection.destroy();
+              return null;
+            }
+            
+            // Track connection by real IP
+            this.securityManager.trackConnectionByIP(remoteIP, connectionId);
+            
+            // Return remaining data after header
+            return headerBuffer.slice(headerEnd + 2);
+          }
+          return null;
+        };
+        
+        // Override the first data handler to parse header
+        const originalEmit = connection.emit;
+        connection.emit = function(event: string, ...args: any[]) {
+          if (event === 'data' && !headerParsed) {
+            const remaining = parseHeader(args[0]);
+            if (remaining && remaining.length > 0) {
+              // Call original emit with remaining data
+              return originalEmit.apply(connection, ['data', remaining]);
+            } else if (headerParsed) {
+              // Header parsed but no remaining data
+              return true;
+            }
+            // Header not complete yet, suppress this data event
+            return true;
+          }
+          return originalEmit.apply(connection, [event, ...args]);
+        } as any;
+      } else {
+        // Direct connection - validate immediately
+        const ipValidation = this.securityManager.validateIP(remoteIP);
+        if (!ipValidation.allowed) {
+          connectionLogDeduplicator.log(
+            'ip-rejected',
+            'warn',
+            `HttpProxy connection rejected`,
+            { remoteIP, reason: ipValidation.reason, component: 'http-proxy' },
+            remoteIP
+          );
+          connection.destroy();
+          return;
+        }
+        
+        // Track connection by IP
+        this.securityManager.trackConnectionByIP(remoteIP, connectionId);
+      }
+      
+      // Then check global max connections
       if (this.socketMap.getArray().length >= this.options.maxConnections) {
-        this.logger.warn(`Max connections (${this.options.maxConnections}) reached, rejecting new connection`);
+        connectionLogDeduplicator.log(
+          'connection-rejected',
+          'warn',
+          'HttpProxy max connections reached',
+          {
+            reason: 'global-limit',
+            currentConnections: this.socketMap.getArray().length,
+            maxConnections: this.options.maxConnections,
+            component: 'http-proxy'
+          },
+          'http-proxy-global-limit'
+        );
         connection.destroy();
         return;
       }
       
-      // Add connection to tracking
+      // Add connection to tracking with metadata
+      (connection as any)._connectionId = connectionId;
+      (connection as any)._remoteIP = remoteIP;
       this.socketMap.add(connection);
       this.connectedClients = this.socketMap.getArray().length;
       
@@ -284,12 +394,12 @@ export class HttpProxy implements IMetricsTracker {
       const localPort = connection.localPort || 0;
       const remotePort = connection.remotePort || 0;
       
-      // If this connection is from a SmartProxy (usually indicated by it coming from localhost)
+      // If this connection is from a SmartProxy
-      if (this.options.portProxyIntegration && connection.remoteAddress?.includes('127.0.0.1')) {
+      if (isFromSmartProxy) {
         this.portProxyConnections++;
-        this.logger.debug(`New connection from SmartProxy (local: ${localPort}, remote: ${remotePort})`);
+        this.logger.debug(`New connection from SmartProxy for client ${remoteIP} (local: ${localPort}, remote: ${remotePort})`);
       } else {
-        this.logger.debug(`New direct connection (local: ${localPort}, remote: ${remotePort})`);
+        this.logger.debug(`New direct connection from ${remoteIP} (local: ${localPort}, remote: ${remotePort})`);
       }
       
       // Setup connection cleanup handlers
@@ -298,12 +408,19 @@ export class HttpProxy implements IMetricsTracker {
           this.socketMap.remove(connection);
           this.connectedClients = this.socketMap.getArray().length;
           
+          // Remove IP tracking
+          const connId = (connection as any)._connectionId;
+          const connIP = (connection as any)._realRemoteIP || (connection as any)._remoteIP;
+          if (connId && connIP) {
+            this.securityManager.removeConnectionByIP(connIP, connId);
+          }
+          
           // If this was a SmartProxy connection, decrement the counter
           if (this.options.portProxyIntegration && connection.remoteAddress?.includes('127.0.0.1')) {
             this.portProxyConnections--;
           }
           
-          this.logger.debug(`Connection closed. ${this.connectedClients} connections remaining`);
+          this.logger.debug(`Connection closed from ${connIP || 'unknown'}. ${this.connectedClients} connections remaining`);
         }
       };
       
@@ -480,6 +597,9 @@ export class HttpProxy implements IMetricsTracker {
     
     // Certificate management cleanup is handled by SmartCertManager
     
+    // Flush any pending deduplicated logs
+    connectionLogDeduplicator.flushAll();
+    
     // Close the HTTPS server
     return new Promise((resolve) => {
       this.httpsServer.close(() => {

ts/proxies/http-proxy/models/types.ts

@@ -45,6 +45,10 @@ export interface IHttpProxyOptions {
 
   // Direct route configurations
   routes?: IRouteConfig[];
+  
+  // Rate limiting and security
+  maxConnectionsPerIP?: number; // Maximum simultaneous connections from a single IP
+  connectionRateLimitPerMinute?: number; // Max new connections per minute from a single IP
 }
 
 /**

ts/proxies/http-proxy/request-handler.ts

@@ -10,7 +10,7 @@ import { ConnectionPool } from './connection-pool.js';
 import { ContextCreator } from './context-creator.js';
 import { HttpRequestHandler } from './http-request-handler.js';
 import { Http2RequestHandler } from './http2-request-handler.js';
-import type { IRouteConfig } from '../smart-proxy/models/route-types.js';
+import type { IRouteConfig, IRouteTarget } from '../smart-proxy/models/route-types.js';
 import type { IRouteContext, IHttpRouteContext } from '../../core/models/route-context.js';
 import { toBaseContext } from '../../core/models/route-context.js';
 import { TemplateUtils } from '../../core/utils/template-utils.js';
@@ -99,6 +99,80 @@ export class RequestHandler {
     return { ...this.defaultHeaders };
   }
   
+  /**
+   * Select the appropriate target from the targets array based on sub-matching criteria
+   */
+  private selectTarget(
+    targets: IRouteTarget[],
+    context: {
+      port: number;
+      path?: string;
+      headers?: Record<string, string>;
+      method?: string;
+    }
+  ): IRouteTarget | null {
+    // Sort targets by priority (higher first)
+    const sortedTargets = [...targets].sort((a, b) => (b.priority || 0) - (a.priority || 0));
+    
+    // Find the first matching target
+    for (const target of sortedTargets) {
+      if (!target.match) {
+        // No match criteria means this is a default/fallback target
+        return target;
+      }
+      
+      // Check port match
+      if (target.match.ports && !target.match.ports.includes(context.port)) {
+        continue;
+      }
+      
+      // Check path match (supports wildcards)
+      if (target.match.path && context.path) {
+        const pathPattern = target.match.path.replace(/\*/g, '.*');
+        const pathRegex = new RegExp(`^${pathPattern}$`);
+        if (!pathRegex.test(context.path)) {
+          continue;
+        }
+      }
+      
+      // Check method match
+      if (target.match.method && context.method && !target.match.method.includes(context.method)) {
+        continue;
+      }
+      
+      // Check headers match
+      if (target.match.headers && context.headers) {
+        let headersMatch = true;
+        for (const [key, pattern] of Object.entries(target.match.headers)) {
+          const headerValue = context.headers[key.toLowerCase()];
+          if (!headerValue) {
+            headersMatch = false;
+            break;
+          }
+          
+          if (pattern instanceof RegExp) {
+            if (!pattern.test(headerValue)) {
+              headersMatch = false;
+              break;
+            }
+          } else if (headerValue !== pattern) {
+            headersMatch = false;
+            break;
+          }
+        }
+        if (!headersMatch) {
+          continue;
+        }
+      }
+      
+      // All criteria matched
+      return target;
+    }
+    
+    // No matching target found, return the first target without match criteria (default)
+    return sortedTargets.find(t => !t.match) || null;
+  }
+  
   /**
    * Apply CORS headers to response if configured
    * Implements Phase 5.5: Context-aware CORS handling
@@ -480,17 +554,31 @@ export class RequestHandler {
       }
     }
 
-    // If we found a matching route with function-based targets, use it
+    // If we found a matching route with forward action, select appropriate target
-    if (matchingRoute && matchingRoute.action.type === 'forward' && matchingRoute.action.target) {
+    if (matchingRoute && matchingRoute.action.type === 'forward' && matchingRoute.action.targets && matchingRoute.action.targets.length > 0) {
       this.logger.debug(`Found matching route: ${matchingRoute.name || 'unnamed'}`);
 
+      // Select the appropriate target from the targets array
+      const selectedTarget = this.selectTarget(matchingRoute.action.targets, {
+        port: routeContext.port,
+        path: routeContext.path,
+        headers: routeContext.headers,
+        method: routeContext.method
+      });
+
+      if (!selectedTarget) {
+        this.logger.error(`No matching target found for route ${matchingRoute.name}`);
+        req.socket.end();
+        return;
+      }
+
       // Extract target information, resolving functions if needed
       let targetHost: string | string[];
       let targetPort: number;
 
       try {
         // Check function cache for host and resolve or use cached value
-        if (typeof matchingRoute.action.target.host === 'function') {
+        if (typeof selectedTarget.host === 'function') {
           // Generate a function ID for caching (use route name or ID if available)
           const functionId = `host-${matchingRoute.id || matchingRoute.name || 'unnamed'}`;
 
@@ -502,7 +590,7 @@ export class RequestHandler {
               this.logger.debug(`Using cached host value for ${functionId}`);
             } else {
               // Resolve the function and cache the result
-              const resolvedHost = matchingRoute.action.target.host(toBaseContext(routeContext));
+              const resolvedHost = selectedTarget.host(toBaseContext(routeContext));
               targetHost = resolvedHost;
 
               // Cache the result
@@ -511,16 +599,16 @@ export class RequestHandler {
             }
           } else {
             // No cache available, just resolve
-            const resolvedHost = matchingRoute.action.target.host(routeContext);
+            const resolvedHost = selectedTarget.host(routeContext);
             targetHost = resolvedHost;
             this.logger.debug(`Resolved function-based host to: ${Array.isArray(resolvedHost) ? resolvedHost.join(', ') : resolvedHost}`);
           }
         } else {
-          targetHost = matchingRoute.action.target.host;
+          targetHost = selectedTarget.host;
         }
 
         // Check function cache for port and resolve or use cached value
-        if (typeof matchingRoute.action.target.port === 'function') {
+        if (typeof selectedTarget.port === 'function') {
           // Generate a function ID for caching
           const functionId = `port-${matchingRoute.id || matchingRoute.name || 'unnamed'}`;
 
@@ -532,7 +620,7 @@ export class RequestHandler {
               this.logger.debug(`Using cached port value for ${functionId}`);
             } else {
               // Resolve the function and cache the result
-              const resolvedPort = matchingRoute.action.target.port(toBaseContext(routeContext));
+              const resolvedPort = selectedTarget.port(toBaseContext(routeContext));
               targetPort = resolvedPort;
 
               // Cache the result
@@ -541,12 +629,12 @@ export class RequestHandler {
             }
           } else {
             // No cache available, just resolve
-            const resolvedPort = matchingRoute.action.target.port(routeContext);
+            const resolvedPort = selectedTarget.port(routeContext);
             targetPort = resolvedPort;
             this.logger.debug(`Resolved function-based port to: ${resolvedPort}`);
           }
         } else {
-          targetPort = matchingRoute.action.target.port === 'preserve' ? routeContext.port : matchingRoute.action.target.port as number;
+          targetPort = selectedTarget.port === 'preserve' ? routeContext.port : selectedTarget.port as number;
         }
 
         // Select a single host if an array was provided
@@ -626,17 +714,32 @@ export class RequestHandler {
       }
     }
 
-    // If we found a matching route with function-based targets, use it
+    // If we found a matching route with forward action, select appropriate target
-    if (matchingRoute && matchingRoute.action.type === 'forward' && matchingRoute.action.target) {
+    if (matchingRoute && matchingRoute.action.type === 'forward' && matchingRoute.action.targets && matchingRoute.action.targets.length > 0) {
       this.logger.debug(`Found matching route for HTTP/2 request: ${matchingRoute.name || 'unnamed'}`);
 
+      // Select the appropriate target from the targets array
+      const selectedTarget = this.selectTarget(matchingRoute.action.targets, {
+        port: routeContext.port,
+        path: routeContext.path,
+        headers: routeContext.headers,
+        method: routeContext.method
+      });
+
+      if (!selectedTarget) {
+        this.logger.error(`No matching target found for route ${matchingRoute.name}`);
+        stream.respond({ ':status': 502 });
+        stream.end();
+        return;
+      }
+
       // Extract target information, resolving functions if needed
       let targetHost: string | string[];
       let targetPort: number;
 
       try {
         // Check function cache for host and resolve or use cached value
-        if (typeof matchingRoute.action.target.host === 'function') {
+        if (typeof selectedTarget.host === 'function') {
           // Generate a function ID for caching (use route name or ID if available)
           const functionId = `host-http2-${matchingRoute.id || matchingRoute.name || 'unnamed'}`;
 
@@ -648,7 +751,7 @@ export class RequestHandler {
               this.logger.debug(`Using cached host value for HTTP/2: ${functionId}`);
             } else {
               // Resolve the function and cache the result
-              const resolvedHost = matchingRoute.action.target.host(toBaseContext(routeContext));
+              const resolvedHost = selectedTarget.host(toBaseContext(routeContext));
               targetHost = resolvedHost;
 
               // Cache the result
@@ -657,16 +760,16 @@ export class RequestHandler {
             }
           } else {
             // No cache available, just resolve
-            const resolvedHost = matchingRoute.action.target.host(routeContext);
+            const resolvedHost = selectedTarget.host(routeContext);
             targetHost = resolvedHost;
             this.logger.debug(`Resolved HTTP/2 function-based host to: ${Array.isArray(resolvedHost) ? resolvedHost.join(', ') : resolvedHost}`);
           }
         } else {
-          targetHost = matchingRoute.action.target.host;
+          targetHost = selectedTarget.host;
         }
 
         // Check function cache for port and resolve or use cached value
-        if (typeof matchingRoute.action.target.port === 'function') {
+        if (typeof selectedTarget.port === 'function') {
           // Generate a function ID for caching
           const functionId = `port-http2-${matchingRoute.id || matchingRoute.name || 'unnamed'}`;
 
@@ -678,7 +781,7 @@ export class RequestHandler {
               this.logger.debug(`Using cached port value for HTTP/2: ${functionId}`);
             } else {
               // Resolve the function and cache the result
-              const resolvedPort = matchingRoute.action.target.port(toBaseContext(routeContext));
+              const resolvedPort = selectedTarget.port(toBaseContext(routeContext));
               targetPort = resolvedPort;
 
               // Cache the result
@@ -687,12 +790,12 @@ export class RequestHandler {
             }
           } else {
             // No cache available, just resolve
-            const resolvedPort = matchingRoute.action.target.port(routeContext);
+            const resolvedPort = selectedTarget.port(routeContext);
             targetPort = resolvedPort;
             this.logger.debug(`Resolved HTTP/2 function-based port to: ${resolvedPort}`);
           }
         } else {
-          targetPort = matchingRoute.action.target.port === 'preserve' ? routeContext.port : matchingRoute.action.target.port as number;
+          targetPort = selectedTarget.port === 'preserve' ? routeContext.port : selectedTarget.port as number;
         }
 
         // Select a single host if an array was provided

ts/proxies/http-proxy/security-manager.ts

@@ -14,7 +14,14 @@ export class SecurityManager {
   // Store rate limits per route and key
   private rateLimits: Map<string, Map<string, { count: number, expiry: number }>> = new Map();
   
-  constructor(private logger: ILogger, private routes: IRouteConfig[] = []) {}
+  // Connection tracking by IP
+  private connectionsByIP: Map<string, Set<string>> = new Map();
+  private connectionRateByIP: Map<string, number[]> = new Map();
+  
+  constructor(private logger: ILogger, private routes: IRouteConfig[] = [], private maxConnectionsPerIP: number = 100, private connectionRateLimitPerMinute: number = 300) {
+    // Start periodic cleanup for connection tracking
+    this.startPeriodicIpCleanup();
+  }
   
   /**
    * Update the routes configuration
@@ -295,4 +302,132 @@ export class SecurityManager {
       return false;
     }
   }
+  
+  /**
+   * Get connections count by IP
+   */
+  public getConnectionCountByIP(ip: string): number {
+    return this.connectionsByIP.get(ip)?.size || 0;
+  }
+  
+  /**
+   * Check and update connection rate for an IP
+   * @returns true if within rate limit, false if exceeding limit
+   */
+  public checkConnectionRate(ip: string): boolean {
+    const now = Date.now();
+    const minute = 60 * 1000;
+
+    if (!this.connectionRateByIP.has(ip)) {
+      this.connectionRateByIP.set(ip, [now]);
+      return true;
+    }
+
+    // Get timestamps and filter out entries older than 1 minute
+    const timestamps = this.connectionRateByIP.get(ip)!.filter((time) => now - time < minute);
+    timestamps.push(now);
+    this.connectionRateByIP.set(ip, timestamps);
+
+    // Check if rate exceeds limit
+    return timestamps.length <= this.connectionRateLimitPerMinute;
+  }
+  
+  /**
+   * Track connection by IP
+   */
+  public trackConnectionByIP(ip: string, connectionId: string): void {
+    if (!this.connectionsByIP.has(ip)) {
+      this.connectionsByIP.set(ip, new Set());
+    }
+    this.connectionsByIP.get(ip)!.add(connectionId);
+  }
+  
+  /**
+   * Remove connection tracking for an IP
+   */
+  public removeConnectionByIP(ip: string, connectionId: string): void {
+    if (this.connectionsByIP.has(ip)) {
+      const connections = this.connectionsByIP.get(ip)!;
+      connections.delete(connectionId);
+      if (connections.size === 0) {
+        this.connectionsByIP.delete(ip);
+      }
+    }
+  }
+  
+  /**
+   * Check if IP should be allowed considering connection rate and max connections
+   * @returns Object with result and reason
+   */
+  public validateIP(ip: string): { allowed: boolean; reason?: string } {
+    // Check connection count limit
+    if (this.getConnectionCountByIP(ip) >= this.maxConnectionsPerIP) {
+      return {
+        allowed: false,
+        reason: `Maximum connections per IP (${this.maxConnectionsPerIP}) exceeded`
+      };
+    }
+
+    // Check connection rate limit
+    if (!this.checkConnectionRate(ip)) {
+      return {
+        allowed: false,
+        reason: `Connection rate limit (${this.connectionRateLimitPerMinute}/min) exceeded`
+      };
+    }
+    
+    return { allowed: true };
+  }
+  
+  /**
+   * Clears all IP tracking data (for shutdown)
+   */
+  public clearIPTracking(): void {
+    this.connectionsByIP.clear();
+    this.connectionRateByIP.clear();
+  }
+  
+  /**
+   * Start periodic cleanup of IP tracking data
+   */
+  private startPeriodicIpCleanup(): void {
+    // Clean up IP tracking data every minute
+    setInterval(() => {
+      this.performIpCleanup();
+    }, 60000).unref();
+  }
+  
+  /**
+   * Perform cleanup of expired IP data
+   */
+  private performIpCleanup(): void {
+    const now = Date.now();
+    const minute = 60 * 1000;
+    let cleanedRateLimits = 0;
+    let cleanedIPs = 0;
+    
+    // Clean up expired rate limit timestamps
+    for (const [ip, timestamps] of this.connectionRateByIP.entries()) {
+      const validTimestamps = timestamps.filter(time => now - time < minute);
+      
+      if (validTimestamps.length === 0) {
+        this.connectionRateByIP.delete(ip);
+        cleanedRateLimits++;
+      } else if (validTimestamps.length < timestamps.length) {
+        this.connectionRateByIP.set(ip, validTimestamps);
+      }
+    }
+    
+    // Clean up IPs with no active connections
+    for (const [ip, connections] of this.connectionsByIP.entries()) {
+      if (connections.size === 0) {
+        this.connectionsByIP.delete(ip);
+        cleanedIPs++;
+      }
+    }
+    
+    if (cleanedRateLimits > 0 || cleanedIPs > 0) {
+      this.logger.debug(`IP cleanup: removed ${cleanedIPs} IPs and ${cleanedRateLimits} rate limits`);
+    }
+  }
 }

ts/proxies/http-proxy/websocket-handler.ts

@@ -3,7 +3,7 @@ import '../../core/models/socket-augmentation.js';
 import { type IHttpProxyOptions, type IWebSocketWithHeartbeat, type ILogger, createLogger } from './models/types.js';
 import { ConnectionPool } from './connection-pool.js';
 import { HttpRouter } from '../../routing/router/index.js';
-import type { IRouteConfig } from '../smart-proxy/models/route-types.js';
+import type { IRouteConfig, IRouteTarget } from '../smart-proxy/models/route-types.js';
 import type { IRouteContext } from '../../core/models/route-context.js';
 import { toBaseContext } from '../../core/models/route-context.js';
 import { ContextCreator } from './context-creator.js';
@@ -53,6 +53,80 @@ export class WebSocketHandler {
     this.securityManager.setRoutes(routes);
   }
   
+  /**
+   * Select the appropriate target from the targets array based on sub-matching criteria
+   */
+  private selectTarget(
+    targets: IRouteTarget[],
+    context: {
+      port: number;
+      path?: string;
+      headers?: Record<string, string>;
+      method?: string;
+    }
+  ): IRouteTarget | null {
+    // Sort targets by priority (higher first)
+    const sortedTargets = [...targets].sort((a, b) => (b.priority || 0) - (a.priority || 0));
+    
+    // Find the first matching target
+    for (const target of sortedTargets) {
+      if (!target.match) {
+        // No match criteria means this is a default/fallback target
+        return target;
+      }
+      
+      // Check port match
+      if (target.match.ports && !target.match.ports.includes(context.port)) {
+        continue;
+      }
+      
+      // Check path match (supports wildcards)
+      if (target.match.path && context.path) {
+        const pathPattern = target.match.path.replace(/\*/g, '.*');
+        const pathRegex = new RegExp(`^${pathPattern}$`);
+        if (!pathRegex.test(context.path)) {
+          continue;
+        }
+      }
+      
+      // Check method match
+      if (target.match.method && context.method && !target.match.method.includes(context.method)) {
+        continue;
+      }
+      
+      // Check headers match
+      if (target.match.headers && context.headers) {
+        let headersMatch = true;
+        for (const [key, pattern] of Object.entries(target.match.headers)) {
+          const headerValue = context.headers[key.toLowerCase()];
+          if (!headerValue) {
+            headersMatch = false;
+            break;
+          }
+          
+          if (pattern instanceof RegExp) {
+            if (!pattern.test(headerValue)) {
+              headersMatch = false;
+              break;
+            }
+          } else if (headerValue !== pattern) {
+            headersMatch = false;
+            break;
+          }
+        }
+        if (!headersMatch) {
+          continue;
+        }
+      }
+      
+      // All criteria matched
+      return target;
+    }
+    
+    // No matching target found, return the first target without match criteria (default)
+    return sortedTargets.find(t => !t.match) || null;
+  }
+  
   /**
    * Initialize WebSocket server on an existing HTTPS server
    */
@@ -146,9 +220,23 @@ export class WebSocketHandler {
       let destination: { host: string; port: number };
 
       // If we found a route with the modern router, use it
-      if (route && route.action.type === 'forward' && route.action.target) {
+      if (route && route.action.type === 'forward' && route.action.targets && route.action.targets.length > 0) {
         this.logger.debug(`Found matching WebSocket route: ${route.name || 'unnamed'}`);
 
+        // Select the appropriate target from the targets array
+        const selectedTarget = this.selectTarget(route.action.targets, {
+          port: routeContext.port,
+          path: routeContext.path,
+          headers: routeContext.headers,
+          method: routeContext.method
+        });
+
+        if (!selectedTarget) {
+          this.logger.error(`No matching target found for route ${route.name}`);
+          wsIncoming.close(1003, 'No matching target');
+          return;
+        }
+
         // Check if WebSockets are enabled for this route
         if (route.action.websocket?.enabled === false) {
           this.logger.debug(`WebSockets are disabled for route: ${route.name || 'unnamed'}`);
@@ -192,20 +280,20 @@ export class WebSocketHandler {
 
         try {
           // Resolve host if it's a function
-          if (typeof route.action.target.host === 'function') {
+          if (typeof selectedTarget.host === 'function') {
-            const resolvedHost = route.action.target.host(toBaseContext(routeContext));
+            const resolvedHost = selectedTarget.host(toBaseContext(routeContext));
             targetHost = resolvedHost;
             this.logger.debug(`Resolved function-based host for WebSocket: ${Array.isArray(resolvedHost) ? resolvedHost.join(', ') : resolvedHost}`);
           } else {
-            targetHost = route.action.target.host;
+            targetHost = selectedTarget.host;
           }
 
           // Resolve port if it's a function
-          if (typeof route.action.target.port === 'function') {
+          if (typeof selectedTarget.port === 'function') {
-            targetPort = route.action.target.port(toBaseContext(routeContext));
+            targetPort = selectedTarget.port(toBaseContext(routeContext));
             this.logger.debug(`Resolved function-based port for WebSocket: ${targetPort}`);
           } else {
-            targetPort = route.action.target.port === 'preserve' ? routeContext.port : route.action.target.port as number;
+            targetPort = selectedTarget.port === 'preserve' ? routeContext.port : selectedTarget.port as number;
           }
 
           // Select a single host if an array was provided

ts/proxies/smart-proxy/certificate-manager.ts

@@ -12,7 +12,7 @@ export interface ICertStatus {
   status: 'valid' | 'pending' | 'expired' | 'error';
   expiryDate?: Date;
   issueDate?: Date;
-  source: 'static' | 'acme';
+  source: 'static' | 'acme' | 'custom';
   error?: string;
 }
 
@@ -22,6 +22,7 @@ export interface ICertificateData {
   ca?: string;
   expiryDate: Date;
   issueDate: Date;
+  source?: 'static' | 'acme' | 'custom';
 }
 
 export class SmartCertManager {
@@ -50,6 +51,12 @@ export class SmartCertManager {
   // ACME state manager reference
   private acmeStateManager: AcmeStateManager | null = null;
   
+  // Custom certificate provision function
+  private certProvisionFunction?: (domain: string) => Promise<plugins.tsclass.network.ICert | 'http01'>;
+  
+  // Whether to fallback to ACME if custom provision fails
+  private certProvisionFallbackToAcme: boolean = true;
+  
   constructor(
     private routes: IRouteConfig[],
     private certDir: string = './certs',
@@ -89,6 +96,20 @@ export class SmartCertManager {
     this.globalAcmeDefaults = defaults;
   }
   
+  /**
+   * Set custom certificate provision function
+   */
+  public setCertProvisionFunction(fn: (domain: string) => Promise<plugins.tsclass.network.ICert | 'http01'>): void {
+    this.certProvisionFunction = fn;
+  }
+  
+  /**
+   * Set whether to fallback to ACME if custom provision fails
+   */
+  public setCertProvisionFallbackToAcme(fallback: boolean): void {
+    this.certProvisionFallbackToAcme = fallback;
+  }
+  
   /**
    * Set callback for updating routes (used for challenge routes)
    */
@@ -212,15 +233,6 @@ export class SmartCertManager {
     route: IRouteConfig, 
     domains: string[]
   ): Promise<void> {
-    if (!this.smartAcme) {
-      throw new Error(
-        'SmartAcme not initialized. This usually means no ACME email was provided. ' +
-        'Please ensure you have configured ACME with an email address either:\n' +
-        '1. In the top-level "acme" configuration\n' +
-        '2. In the route\'s "tls.acme" configuration'
-      );
-    }
-    
     const primaryDomain = domains[0];
     const routeName = route.name || primaryDomain;
     
@@ -229,10 +241,68 @@ export class SmartCertManager {
     if (existingCert && this.isCertificateValid(existingCert)) {
       logger.log('info', `Using existing valid certificate for ${primaryDomain}`, { domain: primaryDomain, component: 'certificate-manager' });
       await this.applyCertificate(primaryDomain, existingCert);
-      this.updateCertStatus(routeName, 'valid', 'acme', existingCert);
+      this.updateCertStatus(routeName, 'valid', existingCert.source || 'acme', existingCert);
       return;
     }
     
+    // Check for custom provision function first
+    if (this.certProvisionFunction) {
+      try {
+        logger.log('info', `Attempting custom certificate provision for ${primaryDomain}`, { domain: primaryDomain, component: 'certificate-manager' });
+        const result = await this.certProvisionFunction(primaryDomain);
+        
+        if (result === 'http01') {
+          logger.log('info', `Custom function returned 'http01', falling back to Let's Encrypt for ${primaryDomain}`, { domain: primaryDomain, component: 'certificate-manager' });
+          // Continue with existing ACME logic below
+        } else {
+          // Use custom certificate
+          const customCert = result as plugins.tsclass.network.ICert;
+          
+          // Convert to internal certificate format
+          const certData: ICertificateData = {
+            cert: customCert.publicKey,
+            key: customCert.privateKey,
+            ca: '',
+            issueDate: new Date(),
+            expiryDate: this.extractExpiryDate(customCert.publicKey),
+            source: 'custom'
+          };
+          
+          // Store and apply certificate
+          await this.certStore.saveCertificate(routeName, certData);
+          await this.applyCertificate(primaryDomain, certData);
+          this.updateCertStatus(routeName, 'valid', 'custom', certData);
+          
+          logger.log('info', `Custom certificate applied for ${primaryDomain}`, { 
+            domain: primaryDomain,
+            expiryDate: certData.expiryDate,
+            component: 'certificate-manager'
+          });
+          return;
+        }
+      } catch (error) {
+        logger.log('error', `Custom cert provision failed for ${primaryDomain}: ${error.message}`, {
+          domain: primaryDomain,
+          error: error.message,
+          component: 'certificate-manager'
+        });
+        // Check if we should fallback to ACME
+        if (!this.certProvisionFallbackToAcme) {
+          throw error;
+        }
+        logger.log('info', `Falling back to Let's Encrypt for ${primaryDomain}`, { domain: primaryDomain, component: 'certificate-manager' });
+      }
+    }
+    
+    if (!this.smartAcme) {
+      throw new Error(
+        'SmartAcme not initialized. This usually means no ACME email was provided. ' +
+        'Please ensure you have configured ACME with an email address either:\n' +
+        '1. In the top-level "acme" configuration\n' +
+        '2. In the route\'s "tls.acme" configuration'
+      );
+    }
+    
     // Apply renewal threshold from global defaults or route config
     const renewThreshold = route.action.tls?.acme?.renewBeforeDays || 
                          this.globalAcmeDefaults?.renewThresholdDays || 
@@ -280,7 +350,8 @@ export class SmartCertManager {
         key: cert.privateKey, 
         ca: cert.publicKey, // Use same as cert for now
         expiryDate: new Date(cert.validUntil),
-        issueDate: new Date(cert.created)
+        issueDate: new Date(cert.created),
+        source: 'acme'
       };
       
       await this.certStore.saveCertificate(routeName, certData);
@@ -328,7 +399,8 @@ export class SmartCertManager {
         cert,
         key,
         expiryDate: certInfo.validTo,
-        issueDate: certInfo.validFrom
+        issueDate: certInfo.validFrom,
+        source: 'static'
       };
       
       // Save to store for consistency
@@ -399,6 +471,19 @@ export class SmartCertManager {
     return cert.expiryDate > expiryThreshold;
   }
   
+  /**
+   * Extract expiry date from a PEM certificate
+   */
+  private extractExpiryDate(_certPem: string): Date {
+    // For now, we'll default to 90 days for custom certificates
+    // In production, you might want to use a proper X.509 parser
+    // or require the custom cert provider to include expiry info
+    logger.log('info', 'Using default 90-day expiry for custom certificate', {
+      component: 'certificate-manager'
+    });
+    return new Date(Date.now() + 90 * 24 * 60 * 60 * 1000);
+  }
+  
   
   /**
    * Add challenge route to SmartProxy

ts/proxies/smart-proxy/connection-manager.ts

@@ -1,6 +1,7 @@
 import * as plugins from '../../plugins.js';
 import type { IConnectionRecord } from './models/interfaces.js';
 import { logger } from '../../core/utils/logger.js';
+import { connectionLogDeduplicator } from '../../core/utils/log-deduplicator.js';
 import { LifecycleComponent } from '../../core/utils/lifecycle-component.js';
 import { cleanupSocket } from '../../core/utils/socket-utils.js';
 import { WrappedSocket } from '../../core/models/wrapped-socket.js';
@@ -26,6 +27,10 @@ export class ConnectionManager extends LifecycleComponent {
   // Cleanup queue for batched processing
   private cleanupQueue: Set<string> = new Set();
   private cleanupTimer: NodeJS.Timeout | null = null;
+  private isProcessingCleanup: boolean = false;
+  
+  // Route-level connection tracking
+  private connectionsByRoute: Map<string, Set<string>> = new Map();
 
   constructor(
     private smartProxy: SmartProxy
@@ -56,11 +61,19 @@ export class ConnectionManager extends LifecycleComponent {
   public createConnection(socket: plugins.net.Socket | WrappedSocket): IConnectionRecord | null {
     // Enforce connection limit
     if (this.connectionRecords.size >= this.maxConnections) {
-      logger.log('warn', `Connection limit reached (${this.maxConnections}). Rejecting new connection.`, {
+      // Use deduplicated logging for connection limit
-        currentConnections: this.connectionRecords.size,
+      connectionLogDeduplicator.log(
-        maxConnections: this.maxConnections,
+        'connection-rejected',
-        component: 'connection-manager'
+        'warn',
-      });
+        'Global connection limit reached',
+        {
+          reason: 'global-limit',
+          currentConnections: this.connectionRecords.size,
+          maxConnections: this.maxConnections,
+          component: 'connection-manager'
+        },
+        'global-limit'
+      );
       socket.destroy();
       return null;
     }
@@ -165,18 +178,53 @@ export class ConnectionManager extends LifecycleComponent {
     return this.connectionRecords.size;
   }
   
+  /**
+   * Track connection by route
+   */
+  public trackConnectionByRoute(routeId: string, connectionId: string): void {
+    if (!this.connectionsByRoute.has(routeId)) {
+      this.connectionsByRoute.set(routeId, new Set());
+    }
+    this.connectionsByRoute.get(routeId)!.add(connectionId);
+  }
+  
+  /**
+   * Remove connection tracking for a route
+   */
+  public removeConnectionByRoute(routeId: string, connectionId: string): void {
+    if (this.connectionsByRoute.has(routeId)) {
+      const connections = this.connectionsByRoute.get(routeId)!;
+      connections.delete(connectionId);
+      if (connections.size === 0) {
+        this.connectionsByRoute.delete(routeId);
+      }
+    }
+  }
+  
+  /**
+   * Get connection count by route
+   */
+  public getConnectionCountByRoute(routeId: string): number {
+    return this.connectionsByRoute.get(routeId)?.size || 0;
+  }
+  
   /**
    * Initiates cleanup once for a connection
    */
   public initiateCleanupOnce(record: IConnectionRecord, reason: string = 'normal'): void {
-    if (this.smartProxy.settings.enableDetailedLogging) {
+    // Use deduplicated logging for cleanup events
-      logger.log('info', `Connection cleanup initiated`, { 
+    connectionLogDeduplicator.log(
+      'connection-cleanup',
+      'info',
+      `Connection cleanup: ${reason}`,
+      { 
         connectionId: record.id, 
         remoteIP: record.remoteIP, 
         reason, 
         component: 'connection-manager' 
-      });
+      },
-    }
+      reason
+    );
 
     if (record.incomingTerminationReason == null) {
       record.incomingTerminationReason = reason;
@@ -200,10 +248,10 @@ export class ConnectionManager extends LifecycleComponent {
     
     this.cleanupQueue.add(connectionId);
     
-    // Process immediately if queue is getting large
+    // Process immediately if queue is getting large and not already processing
-    if (this.cleanupQueue.size >= this.cleanupBatchSize) {
+    if (this.cleanupQueue.size >= this.cleanupBatchSize && !this.isProcessingCleanup) {
       this.processCleanupQueue();
-    } else if (!this.cleanupTimer) {
+    } else if (!this.cleanupTimer && !this.isProcessingCleanup) {
       // Otherwise, schedule batch processing
       this.cleanupTimer = this.setTimeout(() => {
         this.processCleanupQueue();
@@ -215,27 +263,40 @@ export class ConnectionManager extends LifecycleComponent {
    * Process the cleanup queue in batches
    */
   private processCleanupQueue(): void {
+    // Prevent concurrent processing
+    if (this.isProcessingCleanup) {
+      return;
+    }
+    
+    this.isProcessingCleanup = true;
+    
     if (this.cleanupTimer) {
       this.clearTimeout(this.cleanupTimer);
       this.cleanupTimer = null;
     }
     
-    const toCleanup = Array.from(this.cleanupQueue).slice(0, this.cleanupBatchSize);
+    try {
+      // Take a snapshot of items to process
+      const toCleanup = Array.from(this.cleanupQueue).slice(0, this.cleanupBatchSize);
       
-    // Remove only the items we're processing, not the entire queue!
+      // Remove only the items we're processing from the queue
-    for (const connectionId of toCleanup) {
+      for (const connectionId of toCleanup) {
-      this.cleanupQueue.delete(connectionId);
+        this.cleanupQueue.delete(connectionId);
-      const record = this.connectionRecords.get(connectionId);
+        const record = this.connectionRecords.get(connectionId);
-      if (record) {
+        if (record) {
-        this.cleanupConnection(record, record.incomingTerminationReason || 'normal');
+          this.cleanupConnection(record, record.incomingTerminationReason || 'normal');
+        }
       }
-    }
+    } finally {
+      // Always reset the processing flag
+      this.isProcessingCleanup = false;
       
-    // If there are more in queue, schedule next batch
+      // Check if more items were added while we were processing
-    if (this.cleanupQueue.size > 0) {
+      if (this.cleanupQueue.size > 0) {
-      this.cleanupTimer = this.setTimeout(() => {
+        this.cleanupTimer = this.setTimeout(() => {
-        this.processCleanupQueue();
+          this.processCleanupQueue();
-      }, 10);
+        }, 10);
+      }
     }
   }
 
@@ -252,6 +313,11 @@ export class ConnectionManager extends LifecycleComponent {
       // Track connection termination
       this.smartProxy.securityManager.removeConnectionByIP(record.remoteIP, record.id);
       
+      // Remove from route tracking
+      if (record.routeId) {
+        this.removeConnectionByRoute(record.routeId, record.id);
+      }
+      
       // Remove from metrics tracking
       if (this.smartProxy.metricsCollector) {
         this.smartProxy.metricsCollector.removeConnection(record.id);
@@ -335,23 +401,34 @@ export class ConnectionManager extends LifecycleComponent {
       // Remove the record from the tracking map
       this.connectionRecords.delete(record.id);
 
-      // Log connection details
+      // Use deduplicated logging for connection termination
       if (this.smartProxy.settings.enableDetailedLogging) {
-        logger.log('info', 
+        // For detailed logging, include more info but still deduplicate by IP+reason
-          `Connection terminated: ${record.remoteIP}:${record.localPort} (${reason}) - ` +
+        connectionLogDeduplicator.log(
-          `${plugins.prettyMs(duration)}, IN: ${record.bytesReceived}B, OUT: ${record.bytesSent}B`, 
+          'connection-terminated',
-          logData
+          'info',
+          `Connection terminated: ${record.remoteIP}:${record.localPort}`,
+          {
+            ...logData,
+            duration_ms: duration,
+            bytesIn: record.bytesReceived,
+            bytesOut: record.bytesSent
+          },
+          `${record.remoteIP}-${reason}`
         );
       } else {
-        logger.log('info', 
+        // For normal logging, deduplicate by termination reason
-          `Connection terminated: ${record.remoteIP} (${reason}). Active: ${this.connectionRecords.size}`, 
+        connectionLogDeduplicator.log(
+          'connection-terminated',
+          'info',
+          `Connection terminated`,
           {
-            connectionId: record.id,
             remoteIP: record.remoteIP,
             reason,
             activeConnections: this.connectionRecords.size,
             component: 'connection-manager'
-          }
+          },
+          reason // Group by termination reason
         );
       }
     }

ts/proxies/smart-proxy/http-proxy-bridge.ts

@@ -121,6 +121,11 @@ export class HttpProxyBridge {
       proxySocket.on('error', reject);
     });
     
+    // Send client IP information header first (custom protocol)
+    // Format: "CLIENT_IP:<ip>\r\n"
+    const clientIPHeader = Buffer.from(`CLIENT_IP:${record.remoteIP}\r\n`);
+    proxySocket.write(clientIPHeader);
+    
     // Send initial chunk if present
     if (initialChunk) {
       // Count the initial chunk bytes

ts/proxies/smart-proxy/models/interfaces.ts

@@ -135,6 +135,12 @@ export interface ISmartProxyOptions {
    * or a static certificate object for immediate provisioning.
    */
   certProvisionFunction?: (domain: string) => Promise<TSmartProxyCertProvisionObject>;
+  
+  /**
+   * Whether to fallback to ACME if custom certificate provision fails.
+   * Default: true
+   */
+  certProvisionFallbackToAcme?: boolean;
 }
 
 /**
@@ -165,6 +171,7 @@ export interface IConnectionRecord {
   tlsHandshakeComplete: boolean; // Whether the TLS handshake is complete
   hasReceivedInitialData: boolean; // Whether initial data has been received
   routeConfig?: IRouteConfig; // Associated route config for this connection
+  routeId?: string; // ID of the route this connection is associated with
 
   // Target information (for dynamic port/host mapping)
   targetHost?: string; // Resolved target host

ts/proxies/smart-proxy/models/route-types.ts

@@ -46,11 +46,36 @@ export interface IRouteMatch {
 
 
 /**
- * Target configuration for forwarding
+ * Target-specific match criteria for sub-routing within a route
+ */
+export interface ITargetMatch {
+  ports?: number[];                             // Match specific ports from the route
+  path?: string;                                // Match specific paths (supports wildcards like /api/*)
+  headers?: Record<string, string | RegExp>;    // Match specific HTTP headers
+  method?: string[];                            // Match specific HTTP methods (GET, POST, etc.)
+}
+
+/**
+ * Target configuration for forwarding with sub-matching and overrides
  */
 export interface IRouteTarget {
+  // Optional sub-matching criteria within the route
+  match?: ITargetMatch;
+  
+  // Target destination
   host: string | string[] | ((context: IRouteContext) => string | string[]);  // Host or hosts with optional function for dynamic resolution
   port: number | 'preserve' | ((context: IRouteContext) => number);  // Port with optional function for dynamic mapping (use 'preserve' to keep the incoming port)
+  
+  // Optional target-specific overrides (these override route-level settings)
+  tls?: IRouteTls;                             // Override route-level TLS settings
+  websocket?: IRouteWebSocket;                 // Override route-level WebSocket settings
+  loadBalancing?: IRouteLoadBalancing;         // Override route-level load balancing
+  sendProxyProtocol?: boolean;                 // Override route-level proxy protocol setting
+  headers?: IRouteHeaders;                     // Override route-level headers
+  advanced?: IRouteAdvanced;                   // Override route-level advanced settings
+  
+  // Priority for matching (higher values are checked first, default: 0)
+  priority?: number;
 }
 
 /**
@@ -221,19 +246,20 @@ export interface IRouteAction {
   // Basic routing
   type: TRouteActionType;
 
-  // Target for forwarding
+  // Targets for forwarding (array supports multiple targets with sub-matching)
-  target?: IRouteTarget;
+  // Required for 'forward' action type
+  targets?: IRouteTarget[];
 
-  // TLS handling
+  // TLS handling (default for all targets, can be overridden per target)
   tls?: IRouteTls;
 
-  // WebSocket support
+  // WebSocket support (default for all targets, can be overridden per target)
   websocket?: IRouteWebSocket;
 
-  // Load balancing options
+  // Load balancing options (default for all targets, can be overridden per target)
   loadBalancing?: IRouteLoadBalancing;
 
-  // Advanced options
+  // Advanced options (default for all targets, can be overridden per target)
   advanced?: IRouteAdvanced;
   
   // Additional options for backend-specific settings
@@ -251,7 +277,7 @@ export interface IRouteAction {
   // Socket handler function (when type is 'socket-handler')
   socketHandler?: TSocketHandler;
   
-  // PROXY protocol support
+  // PROXY protocol support (default for all targets, can be overridden per target)
   sendProxyProtocol?: boolean;
 }
 

ts/proxies/smart-proxy/nftables-manager.ts

@@ -123,39 +123,43 @@ export class NFTablesManager {
   private createNfTablesOptions(route: IRouteConfig): NfTableProxyOptions {
     const { action } = route;
     
-    // Ensure we have a target
+    // Ensure we have targets
-    if (!action.target) {
+    if (!action.targets || action.targets.length === 0) {
-      throw new Error('Route must have a target to use NFTables forwarding');
+      throw new Error('Route must have targets to use NFTables forwarding');
     }
     
+    // NFTables can only handle a single target, so we use the first target without match criteria
+    // or the first target if all have match criteria
+    const defaultTarget = action.targets.find(t => !t.match) || action.targets[0];
+    
     // Convert port specifications
     const fromPorts = this.expandPortRange(route.match.ports);
     
     // Determine target port
     let toPorts: number | PortRange | Array<number | PortRange>;
     
-    if (action.target.port === 'preserve') {
+    if (defaultTarget.port === 'preserve') {
       // 'preserve' means use the same ports as the source
       toPorts = fromPorts;
-    } else if (typeof action.target.port === 'function') {
+    } else if (typeof defaultTarget.port === 'function') {
       // For function-based ports, we can't determine at setup time
       // Use the "preserve" approach and let NFTables handle it
       toPorts = fromPorts;
     } else {
-      toPorts = action.target.port;
+      toPorts = defaultTarget.port;
     }
     
     // Determine target host
     let toHost: string;
-    if (typeof action.target.host === 'function') {
+    if (typeof defaultTarget.host === 'function') {
       // Can't determine at setup time, use localhost as a placeholder
       // and rely on run-time handling
       toHost = 'localhost';
-    } else if (Array.isArray(action.target.host)) {
+    } else if (Array.isArray(defaultTarget.host)) {
       // Use first host for now - NFTables will do simple round-robin  
-      toHost = action.target.host[0];
+      toHost = defaultTarget.host[0];
     } else {
-      toHost = action.target.host;
+      toHost = defaultTarget.host;
     }
     
     // Create options

ts/proxies/smart-proxy/route-connection-handler.ts

@@ -1,8 +1,9 @@
 import * as plugins from '../../plugins.js';
 import type { IConnectionRecord, ISmartProxyOptions } from './models/interfaces.js';
 import { logger } from '../../core/utils/logger.js';
+import { connectionLogDeduplicator } from '../../core/utils/log-deduplicator.js';
 // Route checking functions have been removed
-import type { IRouteConfig, IRouteAction } from './models/route-types.js';
+import type { IRouteConfig, IRouteAction, IRouteTarget } from './models/route-types.js';
 import type { IRouteContext } from '../../core/models/route-context.js';
 import { cleanupSocket, setupSocketHandlers, createSocketWithErrorHandler, setupBidirectionalForwarding } from '../../core/utils/socket-utils.js';
 import { WrappedSocket } from '../../core/models/wrapped-socket.js';
@@ -89,7 +90,13 @@ export class RouteConnectionHandler {
     // Note: For wrapped sockets, this will use the underlying socket IP until PROXY protocol is parsed
     const ipValidation = this.smartProxy.securityManager.validateIP(wrappedSocket.remoteAddress || '');
     if (!ipValidation.allowed) {
-      logger.log('warn', `Connection rejected`, { remoteIP: wrappedSocket.remoteAddress, reason: ipValidation.reason, component: 'route-handler' });
+      connectionLogDeduplicator.log(
+        'ip-rejected',
+        'warn',
+        `Connection rejected from ${wrappedSocket.remoteAddress}`,
+        { remoteIP: wrappedSocket.remoteAddress, reason: ipValidation.reason, component: 'route-handler' },
+        wrappedSocket.remoteAddress
+      );
       cleanupSocket(wrappedSocket.socket, `rejected-${ipValidation.reason}`, { immediate: true });
       return;
     }
@@ -563,12 +570,20 @@ export class RouteConnectionHandler {
         );
 
         if (!isIPAllowed) {
-          logger.log('warn', `IP ${remoteIP} blocked by route security for route ${route.name || 'unnamed'} (connection: ${connectionId})`, {
+          // Deduplicated logging for route IP blocks
-            connectionId,
+          connectionLogDeduplicator.log(
-            remoteIP,
+            'ip-rejected',
-            routeName: route.name || 'unnamed',
+            'warn',
-            component: 'route-handler'
+            `IP blocked by route security`,
-          });
+            {
+              connectionId,
+              remoteIP,
+              routeName: route.name || 'unnamed',
+              reason: 'route-ip-blocked',
+              component: 'route-handler'
+            },
+            remoteIP
+          );
           socket.end();
           this.smartProxy.connectionManager.cleanupConnection(record, 'route_ip_blocked');
           return;
@@ -577,14 +592,28 @@ export class RouteConnectionHandler {
 
       // Check max connections per route
       if (route.security.maxConnections !== undefined) {
-        // TODO: Implement per-route connection tracking
+        const routeId = route.id || route.name || 'unnamed';
-        // For now, log that this feature is not yet implemented
+        const currentConnections = this.smartProxy.connectionManager.getConnectionCountByRoute(routeId);
-        if (this.smartProxy.settings.enableDetailedLogging) {
+        
-          logger.log('warn', `Route ${route.name} has maxConnections=${route.security.maxConnections} configured but per-route connection limits are not yet implemented`, {
+        if (currentConnections >= route.security.maxConnections) {
-            connectionId,
+          // Deduplicated logging for route connection limits
-            routeName: route.name,
+          connectionLogDeduplicator.log(
-            component: 'route-handler'
+            'connection-rejected',
-          });
+            'warn',
+            `Route connection limit reached`,
+            {
+              connectionId,
+              routeName: route.name,
+              currentConnections,
+              maxConnections: route.security.maxConnections,
+              reason: 'route-limit',
+              component: 'route-handler'
+            },
+            `route-limit-${route.name}`
+          );
+          socket.end();
+          this.smartProxy.connectionManager.cleanupConnection(record, 'route_connection_limit');
+          return;
         }
       }
 
@@ -628,6 +657,80 @@ export class RouteConnectionHandler {
     }
   }
 
+  /**
+   * Select the appropriate target from the targets array based on sub-matching criteria
+   */
+  private selectTarget(
+    targets: IRouteTarget[],
+    context: {
+      port: number;
+      path?: string;
+      headers?: Record<string, string>;
+      method?: string;
+    }
+  ): IRouteTarget | null {
+    // Sort targets by priority (higher first)
+    const sortedTargets = [...targets].sort((a, b) => (b.priority || 0) - (a.priority || 0));
+    
+    // Find the first matching target
+    for (const target of sortedTargets) {
+      if (!target.match) {
+        // No match criteria means this is a default/fallback target
+        return target;
+      }
+      
+      // Check port match
+      if (target.match.ports && !target.match.ports.includes(context.port)) {
+        continue;
+      }
+      
+      // Check path match (supports wildcards)
+      if (target.match.path && context.path) {
+        const pathPattern = target.match.path.replace(/\*/g, '.*');
+        const pathRegex = new RegExp(`^${pathPattern}$`);
+        if (!pathRegex.test(context.path)) {
+          continue;
+        }
+      }
+      
+      // Check method match
+      if (target.match.method && context.method && !target.match.method.includes(context.method)) {
+        continue;
+      }
+      
+      // Check headers match
+      if (target.match.headers && context.headers) {
+        let headersMatch = true;
+        for (const [key, pattern] of Object.entries(target.match.headers)) {
+          const headerValue = context.headers[key.toLowerCase()];
+          if (!headerValue) {
+            headersMatch = false;
+            break;
+          }
+          
+          if (pattern instanceof RegExp) {
+            if (!pattern.test(headerValue)) {
+              headersMatch = false;
+              break;
+            }
+          } else if (headerValue !== pattern) {
+            headersMatch = false;
+            break;
+          }
+        }
+        if (!headersMatch) {
+          continue;
+        }
+      }
+      
+      // All criteria matched
+      return target;
+    }
+    
+    // No matching target found, return the first target without match criteria (default)
+    return sortedTargets.find(t => !t.match) || null;
+  }
+
   /**
    * Handle a forward action for a route
    */
@@ -642,6 +745,10 @@ export class RouteConnectionHandler {
     
     // Store the route config in the connection record for metrics and other uses
     record.routeConfig = route;
+    record.routeId = route.id || route.name || 'unnamed';
+    
+    // Track connection by route
+    this.smartProxy.connectionManager.trackConnectionByRoute(record.routeId, record.id);
 
     // Check if this route uses NFTables for forwarding
     if (action.forwardingEngine === 'nftables') {
@@ -698,14 +805,37 @@ export class RouteConnectionHandler {
       return;
     }
 
-    // We should have a target configuration for forwarding
+    // Select the appropriate target from the targets array
-    if (!action.target) {
+    if (!action.targets || action.targets.length === 0) {
-      logger.log('error', `Forward action missing target configuration for connection ${connectionId}`, {
+      logger.log('error', `Forward action missing targets configuration for connection ${connectionId}`, {
         connectionId,
         component: 'route-handler'
       });
       socket.end();
-      this.smartProxy.connectionManager.cleanupConnection(record, 'missing_target');
+      this.smartProxy.connectionManager.cleanupConnection(record, 'missing_targets');
+      return;
+    }
+    
+    // Create context for target selection
+    const targetSelectionContext = {
+      port: record.localPort,
+      path: undefined, // Will be populated from HTTP headers if available
+      headers: undefined, // Will be populated from HTTP headers if available
+      method: undefined // Will be populated from HTTP headers if available
+    };
+    
+    // TODO: Extract path, headers, and method from initialChunk if it's HTTP
+    // For now, we'll select based on port only
+    
+    const selectedTarget = this.selectTarget(action.targets, targetSelectionContext);
+    if (!selectedTarget) {
+      logger.log('error', `No matching target found for connection ${connectionId}`, {
+        connectionId,
+        port: targetSelectionContext.port,
+        component: 'route-handler'
+      });
+      socket.end();
+      this.smartProxy.connectionManager.cleanupConnection(record, 'no_matching_target');
       return;
     }
 
@@ -726,9 +856,9 @@ export class RouteConnectionHandler {
 
     // Determine host using function or static value
     let targetHost: string | string[];
-    if (typeof action.target.host === 'function') {
+    if (typeof selectedTarget.host === 'function') {
       try {
-        targetHost = action.target.host(routeContext);
+        targetHost = selectedTarget.host(routeContext);
         if (this.smartProxy.settings.enableDetailedLogging) {
           logger.log('info', `Dynamic host resolved to ${Array.isArray(targetHost) ? targetHost.join(', ') : targetHost} for connection ${connectionId}`, {
             connectionId,
@@ -747,7 +877,7 @@ export class RouteConnectionHandler {
         return;
       }
     } else {
-      targetHost = action.target.host;
+      targetHost = selectedTarget.host;
     }
 
     // If an array of hosts, select one randomly for load balancing
@@ -757,9 +887,9 @@ export class RouteConnectionHandler {
 
     // Determine port using function or static value
     let targetPort: number;
-    if (typeof action.target.port === 'function') {
+    if (typeof selectedTarget.port === 'function') {
       try {
-        targetPort = action.target.port(routeContext);
+        targetPort = selectedTarget.port(routeContext);
         if (this.smartProxy.settings.enableDetailedLogging) {
           logger.log('info', `Dynamic port mapping from ${record.localPort} to ${targetPort} for connection ${connectionId}`, {
             connectionId,
@@ -780,20 +910,27 @@ export class RouteConnectionHandler {
         this.smartProxy.connectionManager.cleanupConnection(record, 'port_mapping_error');
         return;
       }
-    } else if (action.target.port === 'preserve') {
+    } else if (selectedTarget.port === 'preserve') {
       // Use incoming port if port is 'preserve'
       targetPort = record.localPort;
     } else {
       // Use static port from configuration
-      targetPort = action.target.port;
+      targetPort = selectedTarget.port;
     }
 
     // Store the resolved host in the context
     routeContext.targetHost = selectedHost;
 
+    // Get effective settings (target overrides route-level settings)
+    const effectiveTls = selectedTarget.tls || action.tls;
+    const effectiveWebsocket = selectedTarget.websocket || action.websocket;
+    const effectiveSendProxyProtocol = selectedTarget.sendProxyProtocol !== undefined 
+      ? selectedTarget.sendProxyProtocol 
+      : action.sendProxyProtocol;
+
     // Determine if this needs TLS handling
-    if (action.tls) {
+    if (effectiveTls) {
-      switch (action.tls.mode) {
+      switch (effectiveTls.mode) {
         case 'passthrough':
           // For TLS passthrough, just forward directly
           if (this.smartProxy.settings.enableDetailedLogging) {
@@ -820,9 +957,9 @@ export class RouteConnectionHandler {
           // For TLS termination, use HttpProxy
           if (this.smartProxy.httpProxyBridge.getHttpProxy()) {
             if (this.smartProxy.settings.enableDetailedLogging) {
-              logger.log('info', `Using HttpProxy for TLS termination to ${Array.isArray(action.target.host) ? action.target.host.join(', ') : action.target.host} for connection ${connectionId}`, {
+              logger.log('info', `Using HttpProxy for TLS termination to ${Array.isArray(selectedTarget.host) ? selectedTarget.host.join(', ') : selectedTarget.host} for connection ${connectionId}`, {
                 connectionId,
-                targetHost: action.target.host,
+                targetHost: selectedTarget.host,
                 component: 'route-handler'
               });
             }
@@ -896,10 +1033,10 @@ export class RouteConnectionHandler {
       } else {
         // Basic forwarding
         if (this.smartProxy.settings.enableDetailedLogging) {
-          logger.log('info', `Using basic forwarding to ${Array.isArray(action.target.host) ? action.target.host.join(', ') : action.target.host}:${action.target.port} for connection ${connectionId}`, {
+          logger.log('info', `Using basic forwarding to ${Array.isArray(selectedTarget.host) ? selectedTarget.host.join(', ') : selectedTarget.host}:${selectedTarget.port} for connection ${connectionId}`, {
             connectionId,
-            targetHost: action.target.host,
+            targetHost: selectedTarget.host,
-            targetPort: action.target.port,
+            targetPort: selectedTarget.port,
             component: 'route-handler'
           });
         }
@@ -907,27 +1044,27 @@ export class RouteConnectionHandler {
         // Get the appropriate host value
         let targetHost: string;
 
-        if (typeof action.target.host === 'function') {
+        if (typeof selectedTarget.host === 'function') {
           // For function-based host, use the same routeContext created earlier
-          const hostResult = action.target.host(routeContext);
+          const hostResult = selectedTarget.host(routeContext);
           targetHost = Array.isArray(hostResult)
             ? hostResult[Math.floor(Math.random() * hostResult.length)]
             : hostResult;
         } else {
           // For static host value
-          targetHost = Array.isArray(action.target.host)
+          targetHost = Array.isArray(selectedTarget.host)
-            ? action.target.host[Math.floor(Math.random() * action.target.host.length)]
+            ? selectedTarget.host[Math.floor(Math.random() * selectedTarget.host.length)]
-            : action.target.host;
+            : selectedTarget.host;
         }
 
         // Determine port - either function-based, static, or preserve incoming port
         let targetPort: number;
-        if (typeof action.target.port === 'function') {
+        if (typeof selectedTarget.port === 'function') {
-          targetPort = action.target.port(routeContext);
+          targetPort = selectedTarget.port(routeContext);
-        } else if (action.target.port === 'preserve') {
+        } else if (selectedTarget.port === 'preserve') {
           targetPort = record.localPort;
         } else {
-          targetPort = action.target.port;
+          targetPort = selectedTarget.port;
         }
 
         // Update the connection record and context with resolved values
@@ -960,6 +1097,10 @@ export class RouteConnectionHandler {
     
     // Store the route config in the connection record for metrics and other uses
     record.routeConfig = route;
+    record.routeId = route.id || route.name || 'unnamed';
+    
+    // Track connection by route
+    this.smartProxy.connectionManager.trackConnectionByRoute(record.routeId, record.id);
     
     if (!route.action.socketHandler) {
       logger.log('error', 'socket-handler action missing socketHandler function', {

ts/proxies/smart-proxy/security-manager.ts

@@ -1,5 +1,7 @@
 import * as plugins from '../../plugins.js';
 import type { SmartProxy } from './smart-proxy.js';
+import { logger } from '../../core/utils/logger.js';
+import { connectionLogDeduplicator } from '../../core/utils/log-deduplicator.js';
 
 /**
  * Handles security aspects like IP tracking, rate limiting, and authorization
@@ -7,8 +9,12 @@ import type { SmartProxy } from './smart-proxy.js';
 export class SecurityManager {
   private connectionsByIP: Map<string, Set<string>> = new Map();
   private connectionRateByIP: Map<string, number[]> = new Map();
+  private cleanupInterval: NodeJS.Timeout | null = null;
 
-  constructor(private smartProxy: SmartProxy) {}
+  constructor(private smartProxy: SmartProxy) {
+    // Start periodic cleanup every 60 seconds
+    this.startPeriodicCleanup();
+  }
   
   /**
    * Get connections count by IP
@@ -164,7 +170,76 @@ export class SecurityManager {
    * Clears all IP tracking data (for shutdown)
    */
   public clearIPTracking(): void {
+    if (this.cleanupInterval) {
+      clearInterval(this.cleanupInterval);
+      this.cleanupInterval = null;
+    }
     this.connectionsByIP.clear();
     this.connectionRateByIP.clear();
   }
+  
+  /**
+   * Start periodic cleanup of expired data
+   */
+  private startPeriodicCleanup(): void {
+    this.cleanupInterval = setInterval(() => {
+      this.performCleanup();
+    }, 60000); // Run every minute
+    
+    // Unref the timer so it doesn't keep the process alive
+    if (this.cleanupInterval.unref) {
+      this.cleanupInterval.unref();
+    }
+  }
+  
+  /**
+   * Perform cleanup of expired rate limits and empty IP entries
+   */
+  private performCleanup(): void {
+    const now = Date.now();
+    const minute = 60 * 1000;
+    let cleanedRateLimits = 0;
+    let cleanedIPs = 0;
+    
+    // Clean up expired rate limit timestamps
+    for (const [ip, timestamps] of this.connectionRateByIP.entries()) {
+      const validTimestamps = timestamps.filter(time => now - time < minute);
+      
+      if (validTimestamps.length === 0) {
+        // No valid timestamps, remove the IP entry
+        this.connectionRateByIP.delete(ip);
+        cleanedRateLimits++;
+      } else if (validTimestamps.length < timestamps.length) {
+        // Some timestamps expired, update with valid ones
+        this.connectionRateByIP.set(ip, validTimestamps);
+      }
+    }
+    
+    // Clean up IPs with no active connections
+    for (const [ip, connections] of this.connectionsByIP.entries()) {
+      if (connections.size === 0) {
+        this.connectionsByIP.delete(ip);
+        cleanedIPs++;
+      }
+    }
+    
+    // Log cleanup stats if anything was cleaned
+    if (cleanedRateLimits > 0 || cleanedIPs > 0) {
+      if (this.smartProxy.settings.enableDetailedLogging) {
+        connectionLogDeduplicator.log(
+          'ip-cleanup',
+          'debug',
+          'IP tracking cleanup completed',
+          {
+            cleanedRateLimits,
+            cleanedIPs,
+            remainingIPs: this.connectionsByIP.size,
+            remainingRateLimits: this.connectionRateByIP.size,
+            component: 'security-manager'
+          },
+          'periodic-cleanup'
+        );
+      }
+    }
+  }
 }

ts/proxies/smart-proxy/smart-proxy.ts

@@ -1,5 +1,6 @@
 import * as plugins from '../../plugins.js';
 import { logger } from '../../core/utils/logger.js';
+import { connectionLogDeduplicator } from '../../core/utils/log-deduplicator.js';
 
 // Importing required components
 import { ConnectionManager } from './connection-manager.js';
@@ -242,6 +243,16 @@ export class SmartProxy extends plugins.EventEmitter {
       certManager.setGlobalAcmeDefaults(this.settings.acme);
     }
     
+    // Pass down the custom certificate provision function if available
+    if (this.settings.certProvisionFunction) {
+      certManager.setCertProvisionFunction(this.settings.certProvisionFunction);
+    }
+    
+    // Pass down the fallback to ACME setting
+    if (this.settings.certProvisionFallbackToAcme !== undefined) {
+      certManager.setCertProvisionFallbackToAcme(this.settings.certProvisionFallbackToAcme);
+    }
+    
     await certManager.initialize();
     return certManager;
   }
@@ -516,6 +527,9 @@ export class SmartProxy extends plugins.EventEmitter {
     // Stop metrics collector
     this.metricsCollector.stop();
     
+    // Flush any pending deduplicated logs
+    connectionLogDeduplicator.flushAll();
+
     logger.log('info', 'SmartProxy shutdown complete.');
   }
   

ts/proxies/smart-proxy/throughput-tracker.ts

@@ -65,24 +65,18 @@ export class ThroughputTracker {
       return { in: 0, out: 0 };
     }
     
-    // Sum bytes in the window
+    // Calculate total bytes in window
     const totalBytesIn = relevantSamples.reduce((sum, s) => sum + s.bytesIn, 0);
     const totalBytesOut = relevantSamples.reduce((sum, s) => sum + s.bytesOut, 0);
     
-    // Calculate actual window duration (might be less than requested if not enough data)
+    // Use actual number of seconds covered by samples for accurate rate
-    const actualWindowSeconds = Math.min(
+    const oldestSampleTime = relevantSamples[0].timestamp;
-      windowSeconds,
+    const newestSampleTime = relevantSamples[relevantSamples.length - 1].timestamp;
-      (now - relevantSamples[0].timestamp) / 1000
+    const actualSeconds = Math.max(1, (newestSampleTime - oldestSampleTime) / 1000 + 1);
-    );
-    
-    // Avoid division by zero
-    if (actualWindowSeconds === 0) {
-      return { in: 0, out: 0 };
-    }
     
     return {
-      in: Math.round(totalBytesIn / actualWindowSeconds),
+      in: Math.round(totalBytesIn / actualSeconds),
-      out: Math.round(totalBytesOut / actualWindowSeconds)
+      out: Math.round(totalBytesOut / actualSeconds)
     };
   }
   

ts/proxies/smart-proxy/utils/route-helpers.ts

@@ -42,7 +42,7 @@ export function createHttpRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target
+    targets: [target]
   };
 
   // Create the route config
@@ -82,7 +82,7 @@ export function createHttpsTerminateRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target,
+    targets: [target],
     tls: {
       mode: options.reencrypt ? 'terminate-and-reencrypt' : 'terminate',
       certificate: options.certificate || 'auto'
@@ -152,7 +152,7 @@ export function createHttpsPassthroughRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target,
+    targets: [target],
     tls: {
       mode: 'passthrough'
     }
@@ -243,7 +243,7 @@ export function createLoadBalancerRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target
+    targets: [target]
   };
 
   // Add TLS configuration if provided
@@ -303,7 +303,7 @@ export function createApiRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target
+    targets: [target]
   };
 
   // Add TLS configuration if using HTTPS
@@ -374,7 +374,7 @@ export function createWebSocketRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target,
+    targets: [target],
     websocket: {
       enabled: true,
       pingInterval: options.pingInterval || 30000, // 30 seconds
@@ -432,10 +432,10 @@ export function createPortMappingRoute(options: {
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target: {
+    targets: [{
       host: options.targetHost,
       port: options.portMapper
-    }
+    }]
   };
 
   // Create the route config
@@ -500,10 +500,10 @@ export function createDynamicRoute(options: {
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target: {
+    targets: [{
       host: options.targetHost,
       port: options.portMapper
-    }
+    }]
   };
 
   // Create the route config
@@ -548,10 +548,10 @@ export function createSmartLoadBalancer(options: {
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target: {
+    targets: [{
       host: hostSelector,
       port: options.portMapper
-    }
+    }]
   };
 
   // Create the route config
@@ -609,10 +609,10 @@ export function createNfTablesRoute(
   // Create route action
   const action: IRouteAction = {
     type: 'forward',
-    target: {
+    targets: [{
       host: target.host,
       port: target.port
-    },
+    }],
     forwardingEngine: 'nftables',
     nftables: {
       protocol: options.protocol || 'tcp',

ts/proxies/smart-proxy/utils/route-patterns.ts

@@ -24,10 +24,10 @@ export function createHttpRoute(
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: target.host,
         port: target.port
-      }
+      }]
     },
     name: options.name || `HTTP: ${Array.isArray(domains) ? domains.join(', ') : domains}`
   };
@@ -53,10 +53,10 @@ export function createHttpsTerminateRoute(
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: target.host,
         port: target.port
-      },
+      }],
       tls: {
         mode: options.reencrypt ? 'terminate-and-reencrypt' : 'terminate',
         certificate: options.certificate || 'auto'
@@ -83,10 +83,10 @@ export function createHttpsPassthroughRoute(
     },
     action: {
       type: 'forward',
-      target: {
+      targets: [{
         host: target.host,
         port: target.port
-      },
+      }],
       tls: {
         mode: 'passthrough'
       }

ts/proxies/smart-proxy/utils/route-utils.ts

@@ -66,12 +66,9 @@ export function mergeRouteConfigs(
       // Otherwise merge the action properties
       mergedRoute.action = { ...mergedRoute.action };
       
-      // Merge target
+      // Merge targets
-      if (overrideRoute.action.target) {
+      if (overrideRoute.action.targets) {
-        mergedRoute.action.target = {
+        mergedRoute.action.targets = overrideRoute.action.targets;
-          ...mergedRoute.action.target,
-          ...overrideRoute.action.target
-        };
       }
       
       // Merge TLS options

ts/proxies/smart-proxy/utils/route-validators.ts

@@ -102,29 +102,43 @@ export function validateRouteAction(action: IRouteAction): { valid: boolean; err
     errors.push(`Invalid action type: ${action.type}`);
   }
 
-  // Validate target for 'forward' action
+  // Validate targets for 'forward' action
   if (action.type === 'forward') {
-    if (!action.target) {
+    if (!action.targets || !Array.isArray(action.targets) || action.targets.length === 0) {
-      errors.push('Target is required for forward action');
+      errors.push('Targets array is required for forward action');
     } else {
-      // Validate target host
+      // Validate each target
-      if (!action.target.host) {
+      action.targets.forEach((target, index) => {
-        errors.push('Target host is required');
+        // Validate target host
-      } else if (typeof action.target.host !== 'string' &&
+        if (!target.host) {
-                !Array.isArray(action.target.host) &&
+          errors.push(`Target[${index}] host is required`);
-                typeof action.target.host !== 'function') {
+        } else if (typeof target.host !== 'string' &&
-        errors.push('Target host must be a string, array of strings, or function');
+                  !Array.isArray(target.host) &&
-      }
+                  typeof target.host !== 'function') {
+          errors.push(`Target[${index}] host must be a string, array of strings, or function`);
+        }
 
-      // Validate target port
+        // Validate target port
-      if (action.target.port === undefined) {
+        if (target.port === undefined) {
-        errors.push('Target port is required');
+          errors.push(`Target[${index}] port is required`);
-      } else if (typeof action.target.port !== 'number' &&
+        } else if (typeof target.port !== 'number' &&
-                typeof action.target.port !== 'function') {
+                  typeof target.port !== 'function' &&
-        errors.push('Target port must be a number or a function');
+                  target.port !== 'preserve') {
-      } else if (typeof action.target.port === 'number' && !isValidPort(action.target.port)) {
+          errors.push(`Target[${index}] port must be a number, 'preserve', or a function`);
-        errors.push('Target port must be between 1 and 65535');
+        } else if (typeof target.port === 'number' && !isValidPort(target.port)) {
-      }
+          errors.push(`Target[${index}] port must be between 1 and 65535`);
+        }
+        
+        // Validate match criteria if present
+        if (target.match) {
+          if (target.match.ports && !Array.isArray(target.match.ports)) {
+            errors.push(`Target[${index}] match.ports must be an array`);
+          }
+          if (target.match.method && !Array.isArray(target.match.method)) {
+            errors.push(`Target[${index}] match.method must be an array`);
+          }
+        }
+      });
     }
 
     // Validate TLS options for forward actions
@@ -242,7 +256,10 @@ export function hasRequiredPropertiesForAction(route: IRouteConfig, actionType:
 
   switch (actionType) {
     case 'forward':
-      return !!route.action.target && !!route.action.target.host && !!route.action.target.port;
+      return !!route.action.targets && 
+             Array.isArray(route.action.targets) && 
+             route.action.targets.length > 0 &&
+             route.action.targets.every(t => t.host && t.port !== undefined);
     case 'socket-handler':
       return !!route.action.socketHandler && typeof route.action.socketHandler === 'function';
     default: