⚡ KCP - A Fast and Reliable ARQ Protocol

Official git repo for iodine dns tunnel

Transparently tunnel your IP traffic through ICMP echo and reply packets.

A lightweight, fast and reliable tun2socks

Tunnel TCP connections through ICMP.

A censorship circumvention tool

Light-weight, secure and modular VPN solution which makes use of NaCl encryption (also available for Android using jnacl in "sigmavpn-android")

Bidirectional data stream tunnelled in HTTP requests.

Cross-platform terminal tunnel tool

Linux TUN/TAP wrapper for Python

A Simple Point-to-Point tunnelling implementation in C

Socket over DNS tunnel

Lightweight TCP in UDP tunnel 🚇 using eBPF 🐝

High-performance multi-path covert channel over DNS

BMX7 / SEMTOR Securely Entrusted Mesh Routing Protocol

EoIP/EoIPv6 for *nix.

A simple TCP port forwarder for GNU/Weeb. Inspired by ngrok.

一个tcp代理工具；借助公网服务器中转，可以把NAT内的远端设备的tcp端口映射至localhost，访问localhost映射端口相当于访问远端设备端口。

TeaVPN2 - An open source VPN Software (currently supported platform is only Linux).