Question 1

What does socat do?

Accepted Answer

Multipurpose socket relay Connects two data streams: sockets, files, pipes and TLS endpoints.

Question 2

Is socat dangerous?

Accepted Answer

HIGH risk. Can expose local services or open remote shells. Listeners bind to all interfaces by default — add bind=127.0.0.1. EXEC: addresses can run commands for any connecting client. Relays can bypass firewall policy.

Question 3

How can I use socat more safely?

Accepted Answer

socat TCP-LISTEN:8080,bind=127.0.0.1,fork TCP:backend:80 — Bind to localhost only