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Iptables Tutorial 1.2.2There are security related bugs found in iptables and Netfilter, one or two do slip by once in a while, it's inevitable. These are properly shown on the front page of the Netfilter main page, and that is where you should go to get information on such topics. The above also implies that the rule-sets available with this tutorial are not written to deal with actual bugs inside Netfilter. The main goal of them is to simply show how to set up rules in a nice simple fashion that deals with all problems we may run into. For example, this tutorial will not cover how we would close down the HTTP port for the simple reason that Apache happens to be vulnerable in version 1.2.12 (This is covered really, though not for that reason). This document was written to give everyone a good and simple primer at how to get started with iptables, but at the same time it was created to be as complete as possible. It does not contain any targets or matches that are in patch-o-matic for the simple reason that it would require too much effort to keep such a list updated ...» | Код для вставки книги в блог HTML
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