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What is the finniest firewall rule set that you know of? It doesn't necessarily have to stop attacks, you could just be having fun with the attacker. Any type of firewall will do, Packet Filter (like iptables) or even a Web Application Firewall(like mod_security).

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closed as not a real question by ThatGraemeGuy, RobM, Dennis Williamson, Chopper3 Jul 26 '10 at 8:36

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Wow, how is this not a real question? – Rook Jul 26 '10 at 15:48
Keep in mind that this site was designed to provide answers for specific questions and problems that professional system administrators encounter. Something like 85% for the traffic of stackoverflow comes from google, to give you an idea. This could have been an amusing page, but I guess the people that closed it thought didn't really fit with the general philosophy of the site. – Kenny Rasschaert Jul 26 '10 at 17:21
up vote 6 down vote accepted

My personal favorite is the Upside-Down-Ternet.

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