protocol-multiplexer v1.0.0

Node Protocol Multiplexer

A simple tool to serve multiple services on the same port. Written in Node.js with zero dependencies.

This program can be used to share a public port for multiple services (on private/different ports). The private port will be selected based on the "signature" of the first packet received. Whether it's HTTP, SSH, or etc.

                  ____ 127.0.0.1:22
                 |
0.0.0.0:2222 ____|____ 127.0.0.1:80
                 |
                 |____ 127.0.0.1:443

I know there are programs available out there for this purpose such as sslh. This is here solely for educational purposes.

Configuration

Just edit the .env file.

Usage

Make sure to make the run.sh file executable:

chmod +x run.sh

And to run it:

./run.sh

If you want to run it in the background:

./run.sh &

Run in the background super-silently (detached, without any output):

( ./run.sh > /dev/null 2>&1 & )