Linux Journal: Rolling Your Own Firewall

"I've been hearing a lot of talk lately about firewall appliances and how much of a pain they can be to use. Many of them tend to be Windows-specific in various ways, or they don't have all the flexibility us Penguin-heads have come to know and love with iptables. So, I decided to see exactly how much pain is involved in rolling your own firewall.

"A visit to the scrap closet netted me a beautiful little machine: a Dell 486D/50, with 16MB of RAM, an 854MB Western Digital hard drive, a floppy and a 3Com 3C509 NIC. Add to that a Viking V.90 external modem, a second-hand 14" monitor and a keyboard to do the install with (the sticker on the monitor says $29.95), and we're ready to rip.

"With all that hard drive space sitting there (you, in the back, stop snickering), I thought I'd go for something a little more powerful than your average floppy-based distribution. Indeed, I fired up LEAF for a few minutes, but realized I wanted a bit more..."

Complete Story

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• Help Net Security: Security Year in Review: VPNs and Firewalls(Dec 21, 2002)
• Viper's Lair: How to Setup a Linux Router/Firewall(Dec 12, 2002)