Hi again, guys. I found a set of iptables rules that (at least in theory) block kazaa... What do you think about? /sbin/iptables -A INSPECT -p TCP -m string --string "X-Kazaa-Username:" -j INSDROP /sbin/iptables -A INSPECT -p TCP -m string --string "X-Kazaa-Network:" -j INSDROP /sbin/iptables -A INSPECT -p TCP -m string --string "X-Kazaa-SupernodeIP:" -j INSDROP Thanks a lot, one more time (and, one more time, sorry for my english.... I promess that i try to enhance it) :) Artur José Ferro Sampaio