How-Tos

Deactivate All Rules

#!/bin/sh
iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X
iptables -t mangle -F
iptables -t mangle -X
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT

Set Up Default Rules (Debian)

pre-up iptables-restore < /etc/iptables.rules