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Old 04-23-2006, 12:12 PM   #1
Registered: Aug 2005
Location: Finland
Distribution: Gentoo 2006.0, Debian 3.1r0
Posts: 60

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Making an old Debian box a firewall

Hi everyone.
I have an old faithful 166MHz Pentium, running Debian Linux in it. I'd like to make it an firewall for my own computer. And yes The comp has 2 network cards, both installed. And please, dont say me change the Debian to smoothwall

The question: What software do I need to do this?
Old 04-23-2006, 12:53 PM   #2
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Registered: Jan 2003
Location: Seymour, Indiana
Distribution: Distribution: RHEL 5 with Pieces of this and that. Kernel, KDE 3.5.8 and KDE 4.0 beta, Plu
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Quick google showed this.

Old 04-23-2006, 12:55 PM   #3
Registered: Apr 2006
Location: Pittsburgh
Distribution: Debian Sid AMD64
Posts: 296

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  • iptables (to do the address translation, you probably already have this)
  • dhcp (the server, you probably will want to do this)
  • some kind of DNS server (maybe you want to serve DNS from the firewall to the other machine, I recommend maradns)

You'll also need to do some other network reconfiguration, like setting "net/ipv4/ip_forward=1" in /etc/sysctl.conf .
Old 04-23-2006, 12:57 PM   #4
Registered: Aug 2005
Location: Finland
Distribution: Gentoo 2006.0, Debian 3.1r0
Posts: 60

Original Poster
Rep: Reputation: 15
Thank you for your answers. I'll try those


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