Echogy

A lightweight and efficient SSH reverse proxy tool implemented in Go, featuring a beautiful Terminal User Interface (TUI).

Features

Terminal User Interface (TUI)

• Modern and responsive terminal interface
• SSH session management
• Real-time connection status monitoring
• User-friendly interface for managing SSH connections

Core Features

• SSH reverse proxy functionality
• Multiple concurrent SSH connections support
• TCP port forwarding
• Secure session management
• Built-in logging system

Quick Start

1. Clone the repository:

git clone https://github.com/youkale/echogy.git
cd echogy

2. Install dependencies:

go mod download

3. Configure your settings in config.json:

{
  "addr": ":443",
  "ssh_addr": ":22",
  "domain": "your-domain.com",
  "idle_timeout": 300,
  "key": "YOUR_SSH_KEY"
}

4. Build and run:

make build
./echogy

Project Structure

.
├── cmd/           # Command line tools
├── logger/        # Logging framework
├── tui/          # Terminal User Interface components
├── pprof/        # Performance profiling
├── echogy.go     # Core SSH implementation
├── conn.go       # Connection management
├── facade.go     # Facade pattern implementation
├── forward.go    # Port forwarding logic
└── util.go       # Utility functions

Key Components

• SSH Server: Handles SSH connections and session management
• Forward Proxy: Manages TCP port forwarding
• TUI: Provides an interactive terminal interface
• Logger: Structured logging with multiple output formats

Configuration

SSH Key Setup

ssh-keygen -b 2048 -f echogy_rsa
# Copy the private key content to config.json

Domain Configuration

# DNS A records
A your-domain.com YOUR_SERVER_IP
A *.your-domain.com YOUR_SERVER_IP

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

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