iptables

To create and save iptables rules the default Debian way, this is the way to go:

• create your rules using the CLI [1] iptables
• save them on the active rule by issuing a /etc/init.d/iptables save active
• create the rules for the inactive state (when booting, for example) and save them accordingly

That way, the rules will survive a reboot. To delete a specific rule previously saved as above:

• go into /var/lib/iptables/active and take the