Package: netcat-openbsd Version: 1.187-1 Severity: wishlist File: /usr/share/man/man1/nc_openbsd.1.gz
At: You can also specify a list of ports to scan, for example: $ nc -zv host.example.com 80 20 22 nc: connect to host.example.com 80 (tcp) failed: Connection refused nc: connect to host.example.com 20 (tcp) failed: Connection refused Mention how to scan 1, 2-5, 9 for example.