How to create extremely simple (http) reverse proxy using netcat (nmap flavor) and a named pipe

ncatproxy.sh

    mkfifo reply
    ncat -kl 8765 < reply | ncat 127.0.0.1 4567 > reply # listens on port 8765 and redirects to localhost:4567. Runs until C-c.
    rm reply # cleanup after end

Nice! Why does this need ncat instead of nc?

ncat & nc both are same.

ncat supports -k which keep the connection open