GO Simple Tunnel, a simple tunnel written in golang
A TLS MITM proxy for Non-HTTP traffic, with support for TLS upgrades
A simple SSL/TLS proxy with mutual authentication
Anti-dpi software
An advanced, yet simple, tunneling/pivoting tool
Bug-fix-only libev port of shadowsocks
Anti-Spam SMTP Proxy Server implements multiple spam filters
SKUDONET Open Source Load Balancer and Web Application Firewall
Lightweight, high-performance, powerful intranet penetration proxy
Network Pivoting Toolkit
Distributed reverse / forward proxy and tunneling solution for TCP.