Local socket - network socket using external linux utility?

Question

linux

I remember I met a utility that took someone else's local socket and made it a network socket, address: port. Now I can't find it.
What are the tools for such functionality, please tell me?

Answer 1

Or socat :

socat TCP-LISTEN:1234,reuseaddr,fork UNIX-CLIENT:/tmp/localsocket

Or netcat :

nc -lk 1234 | nc -U /tmp/localsocket