tldr/pages/common/socat.md

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# socat
> Multipurpose relay (SOcket CAT).
> More information: <http://www.dest-unreach.org/socat/>.
- Listen to a port, wait for an incoming connection and transfer data to STDIO:
`socat - TCP-LISTEN:8080,fork`
- Listen on a port using SSL and print to STDOUT:
`socat OPENSSL-LISTEN:4433,reuseaddr,cert=./cert.pem,cafile=./ca.cert.pem,key=./key.pem,verify=0 STDOUT`
- 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`