# socat

> Multipurpose relay (SOcket CAT).

- Listen to a port, wait for an incoming connection and transfer data to STDIO:

`socat - TCP-LISTEN:8080,fork`

- Create a connection to a host and port, transfer data in STDIO to connected host:

`socat - TCP4:www.example.com:80`

- Forward incoming data of a local port to another host and port:

`socat TCP-LISTEN:80,fork TCP4:www.example.com:80`