Documentation - Fog Proxy

Overview

Fog Proxy is a high-performance, secure proxy solution designed for modern applications. It provides enterprise-grade features including advanced security, load balancing, and comprehensive monitoring.

Key Features

High Performance

Optimized routing with sub-millisecond latency and intelligent caching

Enterprise Security

End-to-end encryption, SSL/TLS termination, and DDoS protection

Load Balancing

Automatic traffic distribution with health checks and failover

Real-time Monitoring

Comprehensive analytics, logging, and alerting capabilities

Getting Started

Installation

Install Fog Proxy using your preferred package manager:

# Using npm
npm install -g fog-proxy

# Using yarn
yarn global add fog-proxy

# Using Docker
docker pull fogproxy/fog-proxy:latest

Quick Setup

Create a config file fog-proxy.config.js:

module.exports = {
  port: 8080,
  target: 'http://localhost:3000',
  security: {
    ssl: true,
    auth: 'basic'
  },
  performance: {
    cache: true,
    compression: true
  }
};

Start the proxy server:

fog-proxy start --config fog-proxy.config.js

How Fog Proxy Works

Fog Proxy acts as an intermediary between clients and your backend servers, providing security, performance optimization, and advanced routing capabilities.

Request Flow

Client establishes secure connection
Request is authenticated
Proxy analyzes route
Load is balanced intelligently
Security filters applied
Backend is contacted securely
Response is returned with caching if applicable

Security Features

SSL/TLS encryption
WAF protection
DDoS mitigation
IP filtering
Header manipulation

Configuration

Basic Configuration

{
  "server": {
    "port": 8080,
    "host": "0.0.0.0",
    "workers": 4
  },
  "targets": [
    {
      "pattern": "/api/*",
      "destination": "http://api-server:3000",
      "weight": 100
    }
  ],
  "ssl": {
    "enabled": true,
    "cert": "/path/to/cert.pem",
    "key": "/path/to/key.pem"
  }
}

Advanced Options

{
  "performance": {
    "cache": {
      "enabled": true,
      "ttl": 3600,
      "storage": "redis"
    },
    "compression": {
      "enabled": true,
      "algorithms": ["gzip", "brotli"]
    }
  },
  "security": {
    "rateLimit": {
      "requests": 1000,
      "windowMs": 60000
    },
    "cors": {
      "enabled": true,
      "origins": ["https://example.com"]
    }
  }
}

Security

Security Best Practices

Always use HTTPS in production and update certificates regularly.

Authentication Methods

Basic Auth
JWT Tokens
OAuth 2.0
API Keys

SSL/TLS Configuration

{
  "ssl": {
    "enabled": true,
    "protocols": ["TLSv1.2", "TLSv1.3"],
    "ciphers": "HIGH:!aNULL:!MD5",
    "dhparam": "/path/to/dhparam.pem"
  }
}

Troubleshooting

Common Issues

Connection Refused

Check if target server is running
Verify firewall settings
Ensure correct port configuration

SSL Certificate Errors

# Check certificate validity
openssl x509 -in cert.pem -text -noout

# Verify certificate chain
openssl verify -CAfile ca-bundle.crt cert.pem

Performance Issues

Enable caching
Increase workers
Check backend health
Monitor system usage

Debug Mode

fog-proxy start --debug --log-level verbose