NC Commands Cheat Sheet
Here is a cli commands cheat sheet for NC command, you can use this as a quick reminder for basic commands with a brief description for each of the commands.
What is NC command?
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# To open a TCP connection from to of , with a timeout of
nc -p -w
# To open a UDP connection to of :
nc -u
# To open a TCP connection to port 42 of using as the IP for the local end of the connection:
nc -s
# To create and listen on a UNIX-domain stream socket:
nc -lU /var/tmp/dsocket
# To connect to of via an HTTP proxy at , # . This example could also be used by ssh(1); see the ProxyCommand # directive in ssh_config(5) for more information.
nc -x: -Xconnect
# The same example again, this time enabling proxy authentication with username "ruser" if the proxy requires it:
nc -x: -Xconnect -Pruser
# To choose the source IP for the testing using the -s option
nc -zv -s source_IP target_IP Port
Check out the NC command documentation .
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