Using NMAP as a port knocker

I want to send packets to a specific UDP or TCP port on another box to test firewalls rules. Using nmap you can send packets to specific ports as follows

nmap server.domain.com -sU -sT -P0 -p U:3130,3128,T:22,80

This will send a UDP packet to ports 3130 and 3128, and a TCP packet to ports 22 and 80.



Note: Replies will be formatted with PHP Markdown Extra syntax.

Name: Email (Not Required):
 
Logged IP: 54.210.83.20
To prevent spam please submit by clicking the kitten: