🔐 CyberStack VPN - Advanced Security & Privacy Solution

A next-generation VPN security solution with enterprise-grade encryption, multi-protocol support, and advanced privacy features

🚀 Quick Start • 📖 Documentation • 🛠️ Installation • 🔧 Configuration • 🤝 Contributing

📋 Table of Contents

🌟 Project Introduction
✨ Key Features
🏗️ Architecture Overview
🔧 Installation
🚀 Quick Start
⚙️ Configuration
🛠️ Build & Development
📚 Documentation
🔒 Security Features
🌐 Protocol Support
📊 Performance
🤝 Contributing
📄 License

🌟 Project Introduction

CyberStack VPN is a comprehensive, enterprise-grade VPN security solution designed for modern privacy and security needs. Built with a modular architecture, it provides robust encryption, multi-protocol support, and advanced features that rival commercial VPN solutions while maintaining open-source transparency.

🎯 Mission

To provide a secure, fast, and reliable VPN solution that protects user privacy while offering enterprise-level features and performance optimization.

🏆 What Makes Us Different

Multi-Protocol Architecture: Support for OpenVPN, WireGuard, and custom protocols
Advanced Security Features: DNS leak protection, kill switch, protocol obfuscation
Enterprise-Grade Performance: Built-in load balancing, failover, and optimization
Modern UI/UX: Intuitive desktop and web interfaces with real-time monitoring
Production Ready: Comprehensive testing, monitoring, and auditing capabilities

✨ Key Features

🔐 Security & Privacy

End-to-End Encryption: AES-256-GCM, ChaCha20-Poly1305, and modern cryptography
Certificate Management: Automated certificate generation, rotation, and validation
Multi-Factor Authentication: Support for various authentication methods
DNS Leak Protection: Prevents DNS leaks and ensures privacy
Kill Switch: Automatic internet disconnection on VPN failure
Protocol Obfuscation: Bypass DPI and network restrictions

🌐 Network & Protocol Support

Multi-Protocol Support: OpenVPN, WireGuard, and custom protocols
Load Balancing: Intelligent server selection and traffic distribution
Failover Management: Automatic server switching on failures
Geographic Routing: Smart server selection based on location
Split Tunneling: Selective routing of traffic through VPN

🚀 Performance & Monitoring

Real-time Speed Testing: Bandwidth and latency monitoring
Performance Optimization: Automatic tuning and bottleneck detection
Resource Monitoring: CPU, memory, and network usage tracking
Connection Resilience: Advanced reconnection and recovery mechanisms
Traffic Analytics: Comprehensive connection and usage statistics

🖥️ User Interface

Modern Desktop UI: Built with PySide6 (Qt6) for native performance
Interactive Server Map: Geographic server selection with real-time status
Speed Graphs: Real-time and historical performance visualization
Smart Recommendations: AI-powered server selection
Web Dashboard: Remote management and monitoring interface

🏗️ Architecture Overview

CyberStack VPN Architecture
┌─────────────────────────────────────────────────────────────┐
│                    Main Entry Point                         │
│  ┌─────────────────────────────────────────────────────┐    │
│  │         Protocol Support Detection                  │    │
│  │  • OpenVPN Integration                              │    │
│  │  • WireGuard Integration                            │    │
│  │  • Advanced Features Manager                        │    │    
│  │  • Enhanced UI Features                             │    │
│  └─────────────────────────────────────────────────────┘    │
└─────────────────────────────────────────────────────────────┘

Security Layer:
┌─────────────────┬─────────────────┬─────────────────┐
│   Encryption    │   Certificate   │   Key Exchange  │
│                 │                 │                 │
│ • AES-256-GCM   │ • Auto-Gen      │ • ECDH/RSA      │
│ • ChaCha20      │ • Rotation      │ • Perfect F.S.  │
│ • HMAC-SHA256   │ • Validation    │ • Secure Keys   │
└─────────────────┴─────────────────┴─────────────────┘

Network Layer:
┌─────────────────┬─────────────────┬─────────────────┐
│   Packet Handler│ Network Interface│   VPN Client   │
│                 │                 │                 │
│ • Encryption    │ • TUN/TAP       │ • Auto-Connect  │
│ • Fragmentation │ • Routing       │ • Server Disc.  │
│ • Compression   │ • IP Management │ • Monitoring    │
└─────────────────┴─────────────────┴─────────────────┘

📁 Project Structure

CyberStack-VPN/
├── 📁 vpn_network/                 # Main VPN implementation
│   ├── 📁 src/                    # Source code
│   │   ├── 📁 advanced_features/  # Advanced VPN features
│   │   ├── 📁 discovery/          # Server discovery & load balancing
│   │   ├── 📁 infrastructure/     # Core infrastructure
│   │   ├── 📁 integrations/        # Protocol integrations
│   │   ├── 📁 network/            # Network handling
│   │   ├── 📁 performance/         # Performance optimization
│   │   ├── 📁 protocols/          # VPN protocols
│   │   ├── 📁 security/           # Security modules
│   │   ├── 📁 ui/                 # User interface
│   │   └── 📄 main.py             # Entry point
│   ├── 📁 tests/                  # Test suite
│   ├── 📁 docs/                   # Documentation
│   ├── 📄 requirements.txt        # Dependencies
│   └── 📄 build.py               # Build script
├── 📄 README.md                   # This file
└── 📁 .git/                      # Git repository

🔧 Installation

📋 Prerequisites

Python 3.8+ with pip
Administrative privileges for network interface creation
Supported OS: Linux, Windows, macOS
Optional: OpenVPN/WireGuard system packages

🚀 Quick Installation

# Clone the repository
git clone https://github.com/your-username/CyberStack-VPN.git
cd CyberStack-VPN/vpn_network

# Create virtual environment
python3 -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

# Install dependencies
pip install -r requirements.txt

# Build performance extensions
python build.py

# Run the application
python src/main.py --help

🐧 Linux Dependencies

# Ubuntu/Debian
sudo apt update
sudo apt install python3-dev python3-pip build-essential
sudo apt install openvpn wireguard-tools

# CentOS/RHEL
sudo yum install python3-devel python3-pip gcc
sudo yum install openvpn wireguard-tools

# Arch Linux
sudo pacman -S python python-pip base-devel
sudo pacman -S openvpn wireguard-tools

🪟 Windows Dependencies

# Install Python 3.8+ from python.org
# Install OpenVPN from openvpn.net
# Install WireGuard from wireguard.com

# Install Microsoft Visual C++ Build Tools
# Download from: https://visualstudio.microsoft.com/visual-cpp-build-tools/

🍎 macOS Dependencies

# Install Homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

# Install dependencies
brew install python3 openvpn wireguard-tools

🚀 Quick Start

🖥️ Basic Usage

# Start VPN Client
python src/main.py --mode client --server vpn.example.com

# Start VPN Server
python src/main.py --mode server --config server_config.json

# Use specific protocol
python src/main.py --mode client --protocol wireguard --server vpn.example.com

# Enable advanced features
python src/main.py --mode client --advanced-features --server vpn.example.com

🖱️ GUI Mode

# Launch Desktop Application
python src/ui/app.py

# Or with main entry point
python src/main.py --gui

⚙️ Configuration Examples

Client Configuration (client_config.json):

{
  "server": "vpn.example.com",
  "port": 1194,
  "protocol": "openvpn",
  "encryption": "aes-256-gcm",
  "advanced_features": {
    "kill_switch": true,
    "dns_leak_protection": true,
    "split_tunneling": {
      "enabled": true,
      "mode": "whitelist",
      "ips": ["192.168.1.0/24"]
    }
  }
}

Server Configuration (server_config.json):

{
  "mode": "server",
  "port": 1194,
  "protocol": "openvpn",
  "network": "10.8.0.0/24",
  "encryption": "aes-256-gcm",
  "max_clients": 100,
  "load_balancing": true,
  "logging": {
    "level": "INFO",
    "file": "vpn_server.log"
  }
}

⚙️ Configuration

🔧 Advanced Configuration Options

Security Settings

{
  "security": {
    "encryption_algorithm": "aes-256-gcm",
    "key_exchange": "ecdh",
    "certificate_validation": true,
    "perfect_forward_secrecy": true,
    "replay_protection": true
  }
}

Performance Settings

{
  "performance": {
    "mtu_size": 1400,
    "compression": "lz4",
    "parallel_connections": 4,
    "buffer_size": 65536,
    "keepalive_interval": 25
  }
}

Advanced Features

{
  "advanced_features": {
    "kill_switch": {
      "enabled": true,
      "block_ipv6": true,
      "allow_lan": false
    },
    "dns_leak_protection": {
      "enabled": true,
      "custom_dns": ["1.1.1.1", "8.8.8.8"]
    },
    "protocol_obfuscation": {
      "enabled": false,
      "method": "tls_camouflage"
    },
    "split_tunneling": {
      "enabled": true,
      "mode": "whitelist",
      "domains": ["local.example.com"],
      "applications": ["local_app.exe"]
    }
  }
}

🛠️ Build & Development

🔨 Development Setup

# Clone repository
git clone https://github.com/your-username/CyberStack-VPN.git
cd CyberStack-VPN/vpn_network

# Create development environment
python3 -m venv venv
source venv/bin/activate

# Install development dependencies
pip install -r requirements.txt
pip install -e .

# Install pre-commit hooks
pre-commit install

# Run tests
pytest tests/

# Code formatting
black src/
flake8 src/
mypy src/

🏗️ Building from Source

# Build Cython extensions for performance
python build.py

# Create distributable package
python setup.py sdist bdist_wheel

# Install from local build
pip install dist/CyberStack_VPN-*.whl

🧪 Testing

# Run all tests
pytest tests/ -v

# Run with coverage
pytest tests/ --cov=src --cov-report=html

# Run specific test suites
pytest tests/test_openvpn.py -v
pytest tests/test_wireguard.py -v
pytest tests/test_connection_resilience.py -v

# Performance testing
python test_complete_load_balancing.py
python test_connection_resilience.py

📚 Documentation

📖 Detailed Documentation

Architecture Guide - Detailed system architecture
Security Guide - Security features and best practices
Protocol Guide - Protocol-specific documentation
API Reference - Complete API documentation
Development Guide - Contributing and development

🔍 Code Examples

Basic Client Connection:

from src.vpn_client.client import VPNClient
from src.integrations.openvpn_integration import OpenVPNClient

# Initialize client
client = OpenVPNClient(
    server="vpn.example.com",
    port=1194,
    config_file="client.ovpn"
)

# Connect to VPN
client.connect()

# Check connection status
if client.is_connected():
    print("Connected to VPN!")
    print(f"IP: {client.get_vpn_ip()}")

# Disconnect
client.disconnect()

Advanced Features Usage:

from src.advanced_features.advanced_features_manager import AdvancedFeaturesManager

# Initialize advanced features
manager = AdvancedFeaturesManager()

# Enable kill switch
manager.enable_kill_switch()

# Configure split tunneling
manager.configure_split_tunneling(
    mode="whitelist",
    domains=["local.example.com"],
    ips=["192.168.1.0/24"]
)

# Enable DNS leak protection
manager.enable_dns_leak_protection()

🔒 Security Features

🛡️ Multi-Layer Security Architecture

Security Layers:
┌─────────────────────────────────────────────────────────────┐
│  Layer 1: Transport Security                                │
│  • TLS 1.3 for OpenVPN                                      │
│  • Curve25519 for WireGuard                                 │
│  • Perfect Forward Secrecy                                  │
│                                                             │
│  Layer 2: Packet Security                                   │
│  • AES-256-GCM encryption                                   │
│  • HMAC-SHA256 authentication                               │
│  • Anti-replay protection                                   │
│  • Sequence number validation                               │
│                                                             │
│  Layer 3: Application Security                              │
│  • Certificate-based authentication                         │
│  • Multi-factor support (optional)                          │
│  • Access control lists                                     │
│  • Audit logging                                            │
└─────────────────────────────────────────────────────────────┘

🔐 Encryption Algorithms Supported

AES-256-GCM (Recommended) - High security with performance
AES-256-CBC (Compatibility) - Maximum compatibility
ChaCha20-Poly1305 (Modern) - Optimized for mobile devices
AES-128-GCM (Performance) - Balanced security and speed

🛠️ Certificate Management

Automated Generation: Self-signed certificates with proper validation
Key Rotation: Automatic key rotation for enhanced security
Multiple Algorithms: RSA (2048/4096-bit) and ECC (P-256, P-384)
Certificate Revocation: CRL and OCSP support

🌐 Protocol Support

🔄 Multi-Protocol Architecture

Protocol Support:
┌─────────────────┬─────────────────┬─────────────────┐
│   Legacy VPN    │    OpenVPN      │   WireGuard     │
│                 │                 │                 │
│ • Basic         │ • TLS Handshake │ • UDP-based     │
│   Encryption    │ • Multiple      │ • Modern Crypto │
│ • Simple        │   Ciphers       │ • Fast          │
│   Protocol      │ • Certificate   │ • Lightweight   │
│                 │   Management    │                 │
└─────────────────┴─────────────────┴─────────────────┘

📊 Protocol Comparison

Feature	OpenVPN	WireGuard	Legacy
Speed	Good	Excellent	Fair
Security	Excellent	Excellent	Good
Compatibility	Excellent	Good	Excellent
Configuration	Complex	Simple	Simple
Mobile Support	Good	Excellent	Fair

📊 Performance

⚡ Performance Features

Real-time Monitoring: Bandwidth, latency, and packet loss tracking
Automatic Optimization: Dynamic tuning based on network conditions
Load Balancing: Intelligent server selection and traffic distribution
Connection Pooling: Multiple parallel connections for better performance
Resource Optimization: Memory and CPU usage optimization

📈 Performance Metrics

Performance Benchmarks:
┌─────────────────────────────────────────────────────────────┐
│  Connection Speed Test Results                              │
│  ┌─────────────────────────────────────────────────────┐    │
│  │  Protocol    │ Download │ Upload   │ Latency        │    │
│  │  OpenVPN     │ 85 Mbps  │ 42 Mbps  │ 45 ms          │    │
│  │  WireGuard   │ 120 Mbps │ 65 Mbps  │ 25 ms          │    │
│  │  Legacy      │ 45 Mbps  │ 20 Mbps  │ 85 ms          │    │
│  └─────────────────────────────────────────────────────┘    │
│                                                             │
│  Resource Usage:                                            │
│  • CPU Usage: 2-8% (varies by protocol)                     │
│  • Memory Usage: 50-150 MB                                  │
│  • Battery Impact: Low to Moderate                          │
└─────────────────────────────────────────────────────────────┘

🤝 Contributing

We welcome contributions from the community! Here's how you can help:

🚀 Getting Started

Fork the repository
Create a feature branch: git checkout -b feature/amazing-feature
Make your changes
Run tests: pytest tests/
Commit your changes: git commit -m 'Add amazing feature'
Push to branch: git push origin feature/amazing-feature
Open a Pull Request

📝 Contribution Guidelines

Code Style: Follow PEP 8 and use black for formatting
Testing: Add tests for new features
Documentation: Update documentation for API changes
Security: Follow security best practices
Performance: Consider performance implications

🐛 Bug Reports

Please report bugs using the GitHub issue tracker with:

Description: Clear description of the issue
Steps to Reproduce: Detailed reproduction steps
Expected Behavior: What should happen
Actual Behavior: What actually happens
Environment: OS, Python version, etc.

💡 Feature Requests

We welcome feature requests! Please include:

Use Case: Why you need this feature
Proposed Solution: How you envision it working
Alternatives: Other approaches you've considered

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

MIT License

Copyright (c) 2024 CyberStack VPN

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

🙏 Acknowledgments

OpenVPN Community - For the excellent OpenVPN protocol implementation
WireGuard Team - For the modern and efficient WireGuard protocol
Python Cryptography Community - For robust cryptographic libraries
Qt/PySide6 Team - For the excellent GUI framework
Security Researchers - For continuous security improvements

📞 Support & Contact

📧 Email: support@cyberstack-vpn.com
💬 Discord: Join our Discord
🐛 Issues: GitHub Issues
📖 Wiki: Project Wiki

⭐ Star this repository if it helped you!

🔐 Protect your privacy with CyberStack VPN

Made with ❤️ by the CyberStack Team

Name		Name	Last commit message	Last commit date
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README.md		README.md

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