Setting up a linux firewall and router
iptables is a command line tool which allow system administrators to configure Linux packet filtering ruleset.
Using iptables, you are able to tweak packet filtering, Network Address Translation (NAT) and packet mangling which in the end are going to allow you to secure your server, share your Internet connection and log unwanted traffic.
iptables is not really what we could call an easy to get with tool, but once you know the basis, it won't be that scary.
This tutorial will provide a sample script you can use to share your Internet access and will give an overview on how to use iptables
Setting up a linux firewall and router with iptables
(Submitted by chantra Wed Dec 20, 2006 )
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