How to Use Netcat Commands

Sources:

• https://www.varonis.com/blog/netcat-commands/
• https://www.unixfu.ch/use-netcat-instead-of-telnet/

root@flxb-node-01:~ # nc -z -v www.google.com 80
Connection to www.google.com 80 port [tcp/http] succeeded!

root@flxb-node-01:~ # nc -z -v www.google.com 443
Connection to www.google.com 443 port [tcp/https] succeeded!