Provides the socks5 package that implements a SOCKS5. 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:

• Support socks5 server
• Support TCP/UDP and IPv4/IPv6
• 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

Installation

Use go get.

    go get github.com/things-go/go-socks5

Then import the socks5 server package into your own code.

    import "github.com/things-go/go-socks5"

Example

Below is a simple example of usage, more see example

package main

import (
	"log"
	"os"

	"github.com/things-go/go-socks5"
)

func main() {
	// Create a SOCKS5 server
	server := socks5.NewServer(
		socks5.WithLogger(socks5.NewLogger(log.New(os.Stdout, "socks5: ", log.LstdFlags))),
	)

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

Reference

• rfc1928
• original armon's go-sock5 library

License

This project is under MIT License. See the LICENSE file for the full license text.

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