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Top 5 Best Linux Firewalls

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Software

As part of the contest we conducted recently, we got 160+ comments from the geeky readers who choose their favorite firewall.

Based on this data, the top spot goes to.. drum roll please..

1. Iptables

iptables is a user space application program that does packet filtering, network address translation (NAT), and port address translation (PAT). iptables is for IPv4. ip6tables is for IPv6.

iptables needs kernel with ip_tables packet filter (including Linux kernel 2.4.x and 2.6.x). Using iptables you can view, add, remove or modify the rules in the packet filter ruleset.

Home page: http://www.netfilter.org
Author: Rusty Russell
Latest stable release: 1.4.6
License: GNU

2. IPCop




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