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http://www.sixxs.net/wiki/IPv6_Firewalling
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https://wiki.ubuntu.com/UbuntuFirewall
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http://www.hackszine.com/blog/archive...rs_firewall.html?CMP=OTC-7G2N43923558
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http://pyroman.alioth.debian.org
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http://www.gnomemeeting.org/index.php?rub=3&pos=0&faqpage=x161.html
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http://www.heise-security.co.uk/articles/82481
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http://www.lowth.com/howto/iptables-treasures.php
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http://lists.grok.org.uk/pipermail/fu...-disclosure/2005-November/038646.html
Howto to block p2p with firewall
http://www.ipp2p.org