go-socks5

Provides the socks5 package that implements a SOCKS5 server. SOCKS (Secure Sockets) is used to route traffic between a client and server through an intermediate proxy layer. This can be used to bypass firewalls or NATs.

Feature

The package has the following features:

• Unit tests
• "No Auth" mode
• User/Password authentication optional user addr limit
• Support for the CONNECT command
• Support for the ASSOCIATE command
• Rules to do granular filtering of commands
• Custom DNS resolution
• Custom goroutine pool
• buffer pool design and optional custom buffer pool
• Custom logger

TODO

The package still needs the following:

• Support for the BIND command

Example

Below is a simple example of usage

// Create a SOCKS5 server
server := socks5.NewServer()

// Create SOCKS5 proxy on localhost port 8000
if err := server.ListenAndServe("tcp", ":8000"); err != nil {
  panic(err)
}

Reference

• rfc1928
• original armon go-sock5