Configure Git to use SSH Proxy with ncat

This document provides a step-by-step guide to configure Git to use an SSH proxy via ncat, ensuring secure and efficient connections to repositories like GitHub.

Install ncat

ncat (part of the Nmap suite) is required for proxy functionality.

# Arch Linux
sudo pacman -S nmap

# Debian/Ubuntu
sudo apt install nmap

# CentOS/RHEL
sudo yum install nmap

# macOS (via Homebrew)
brew install nmap

Configure SSH Proxy

Edit the SSH configuration file (~/.ssh/config) to include proxy settings for your Git server.

Host github.com
  User git
  Hostname github.com
  Port 22
  ProxyCommand ncat --proxy-type socks5 --proxy 127.0.0.1:1080 %h %p

​Key Parameters​​:

• --proxy-type: Specify proxy protocol (socks4, socks5, or http).

• --proxy: Proxy server address and port (e.g., 127.0.0.1:1080 for SOCKS5).

• %h %p: Placeholders for the target host and port.

HTTP Proxy

ProxyCommand ncat --proxy-type http --proxy 127.0.0.1:8080 %h %p

Verify the Configuration​

​Test the SSH connection to GitHub:

ssh -T git@github.com
Hi [name] You've successfully authenticated, but GitHub does not provide shell access.

# verbose
ssh -vvT git@github.com

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