I've compiled my kernel (2.6.12.3) and iptables (1.3.3) and now -m layer7 option from iptables works (i don't get any error when run the iptables command with -m layer7). The problem is that no packet is matched. For example iptables -A INPUT -p tcp -m layer7 --l7proto http -j ACCEPT doesn't match http packets. The same for dns and ssh. So, what am I doing wrong? Is this extension for iptables really working?? I’ve tried on 2 systems (fc3 and slack 10.1) Here is my iptables test script: #!/bin/bash iptables -F iptables -A INPUT -i lo -j ACCEPT iptables -A OUTPUT -o lo -j ACCEPT iptables -A INPUT -i eth0 -p tcp --dport 22 -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp --sport 22 -j ACCEPT iptables -A INPUT -i eth0 -p tcp -m layer7 --l7dir /home/dda/l7dir --l7proto http -j ACCEPT iptables -A OUTPUT -o eth0 -p tcp -m layer7 --l7dir /home/dda/l7dir --l7proto http -j ACCEPT iptables -A INPUT -i eth0 -p udp -m layer7 --l7dir /home/dda/l7dir --l7proto dns -j ACCEPT iptables -A OUTPUT -o eth0 -p udp -m layer7 --l7dir /home/dda/l7dir --l7proto dns -j ACCEPT iptables -P INPUT DROP iptables -P OUTPUT DROP and now: iptables -vnL after generating some http and dns traffic Chain INPUT (policy DROP 56 packets, 8892 bytes) pkts bytes target prot opt in out source destination 3340 134K ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 129 9208 ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:22 0 0 ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto http 0 0 ACCEPT udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto dns Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) pkts bytes target prot opt in out source destination Chain OUTPUT (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 3340 134K ACCEPT all -- * lo 0.0.0.0/0 0.0.0.0/0 90 12254 ACCEPT tcp -- * eth0 0.0.0.0/0 0.0.0.0/0 tcp spt:22 0 0 ACCEPT tcp -- * eth0 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto http 0 0 ACCEPT udp -- * eth0 0.0.0.0/0 0.0.0.0/0 LAYER7 l7proto dns _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
