> What does the -I do? and why is the order so important (just > curious and wants to learn). The -I menas to Insert a rule in the the top of a chain rather than adding it to the bottom of a chain. The order of the rules are important, because a packet starts traversing the chains, and the first rule a packets matches, it jumps to a target, and stops traversing that chains. Unless the target is LOG, RETURN and some others. /Jesper
