# socat

> Multipurpose relay (SOcket CAT)

- Listen to a port, wait for an incoming connect 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.domain.com:80`

- Forward incoming data to a local port to another host and port.

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