port-forwarder

A simple TCP port forwarder built in Go. It redirects traffic from a source port to a target port, making local services accessible over a network.

Features

• Port forwarding between any two TCP ports
• Automatic target port selection if not provided
• Displays available network interfaces for easier LAN access
• Lightweight and fast using Go’s concurrency

Installation

1. Clone the repository:

   git clone https://github.com/Bethel-nz/Ech.0.git
   cd Ech.0

2. Build the executable:

   go build -o echo main.go

3. Run the forwarder:

   ./echo -source localhost:3000 -target :8080

Usage

Basic port forwarding:

./port-forwarder -source localhost:3000 -target :8080

Automatically find an available port:

./port-forwarder -source localhost:3000

Access over LAN by using your local IP:

http://192.168.x.x:8080

Development

Run in debug mode:

go run main.go -source localhost:3000 -target :8080

Why

• Needed a way to access services running on my pc over the LAN network

License

This project is open-source under the MIT License.