Did a search here first and cant believe this hasnt been put up for d/l before! Hping2 is my second favorite port scanner (and a whole lot more) after the obvious, due to how configurable it is (along with being able to craft packets).
Home page is here :http://www.hping.org/index.html
Hping manual :http://www.hping.org/manpage.html
Packet Crafting via Hping tut :
http://forums.governmentsecurity.org/index...st=0&#entry2606
