Hi All, I am fairly new to netfilter. Hopefully you do not mind me asking a couple of questions. I can't quite get the full picture around the different locations of iptables scripts. On my machine for instance i have. /etc/sysconfig/iptables /etc/init.d/iptables /etc/rc.d/init.d/iptables Now i know that the /sysconfig file is configured by the service command i.e service iptables save But how about the other two? And if i wanted to add a script that complimented the /sysconfig rules i have already saved where would i put it? Thanks for your time and patience. Luke