This is little tutorial for NetCat. Two useful lessons.

Lesson [1] How to make local chat server? This is useful for people who they have several PCs and this is simple method for transfer links (for example).



Lesson [2]: How to see if certain ports in domain are open?
Just use this command: nc -zv domainname.com port1 port2 port3 and etc, press Enter.



If the ping succeeds, the output shows the successful connection message. The -z  option ensures the connection does not persist.

Enjoy. 🙄

Thank you so much for sharing :)

Looks interestig