Linux Firewall Part 4: Core Software Installation

Posted on Wednesday, Apr 29 2009 @ 05:26 CEST by Thomas De Maesschalck
If you already have an Internet Router that you're intending to replace, I recommend some prep-work to make things easier. Most routers are set as the gateway to their network (i.e., and this is probably the address that you want your firewall to use. Otherwise, you'll have to set the firewall to or some other address, which can get real confusing really fast. Go ahead and log into your existing firewall, and change its address to, or some other number, so that it will not conflict with your new firewall. And turn off DHCP, since your new firewall should be the new DHCP server... you don't want two servers trying to dole out dynamic IP addresses and wreaking all sorts of havok.

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About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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