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iptables as a Replacement for Commercial Enterprise Firewalls

Dec 17, 2007, 11:30 (0 Talkback[s])
(Other stories by John C. A. Bambenek)

"With IT budgets getting tighter, managers need to trim costs. Service contracts are expensive for any technology; firewalls are no exception. Netfilter, the project that provides the packet filtering program iptables, is a free firewall alternative. While it lacks the service contract of commercial solutions and a pretty interfaces to make firewall modification easy, it has solid performance, performs effectively at firewalling, and allows for add-on functionality to enhance its reporting and response functions.

"As a case study to demonstrate the feasibility of iptables as an enterprise firewall, consider the network I manage at University of Illinois at Urbana-Champaign..."

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