netcat — quick reference

Xavier Briand
Mar 28, 2019 · 1 min read

Arbitrary TCP and UDP connections and listens

Scan for listening daemon, without sending data

> nc -z 20-30
> nc -zv 20-30


> nc -l 1234 # server
> nc 1234 # client> nc -l 1234 > out.txt # server> nc 1234 < in.txt # clientGNU
> nc -lp 1234
BSD man page

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