ginuerzh/gost

GOST (GO Simple Tunnel) is a command-line tool written in Go that creates secure network tunnels and proxy chains. A network tunnel lets you route your internet traffic through one or more intermediate servers, which is useful for bypassing network restrictions, accessing services that are not directly reachable, or adding a layer of encryption to otherwise unprotected connections. The tool supports a wide range of proxy protocols including HTTP, HTTPS, SOCKS4, SOCKS5, Shadowsocks, and HTTP2, meaning it can act as a standard proxy server that other applications already know how to talk to. One of its key features is proxy chaining: you can set up a sequence of forwarding servers, and GOST will route your traffic through each one in order, for example, through a QUIC tunnel, then a SOCKS5 server over WebSocket, then an HTTP2 server, before the traffic reaches its destination. Each hop in the chain can use a different protocol. Beyond proxying, GOST can forward specific local or remote TCP and UDP ports to other addresses, which is useful when you need to expose a service behind a firewall or redirect traffic between machines. It also supports transparent proxying (redirecting traffic without the sender knowing), DNS proxying and resolution, load balancing across multiple upstream servers, and TUN/TAP device tunneling (which lets you build VPN-like setups). Obfs4 is also supported for traffic obfuscation. The README content is primarily in Chinese. You would use GOST if you are a network engineer or developer who needs a flexible, multi-protocol tunneling tool that can be composed into complex routing configurations from the command line.