DIY Firewall

It must be How-To day here at FG. Here is another great article/post on building your own firewall using Linux, complete with the command line…er, commands for configuring it.

Over the years I have learned how to roll my own firewall script and call it from /etc directory. Of course, my firewall is only INPUT based, instead of INPUT and OUTPUT based, but I find that building an INPUT/OUTPUT based firewall is tremendously difficult and not really all that necessary if you use good download practices on your Linux server or PC and/or if you’re already behind a NAT router (such as a home-based DSL or cable router or wireless router) or other firewall.

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