<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <article id="Shorewall_Doesnt"> <!--$Id$--> <articleinfo> <title>Some Things that Shorewall Does Not Do</title> <author> <firstname>Tom</firstname> <surname>Eastep</surname> </author> <pubdate><?dbtimestamp format="Y/m/d"?></pubdate> <copyright> <year>2003-</year> <year>2005</year> <holder>Thomas M Eastep</holder> </copyright> <legalnotice> <para>Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover, and with no Back-Cover Texts. A copy of the license is included in the section entitled <quote><ulink url="GnuCopyright.htm">GNU Free Documentation License</ulink></quote>.</para> </legalnotice> </articleinfo> <caution> <para><emphasis role="bold">This article applies to Shorewall 3.0 and later. If you are running a version of Shorewall earlier than Shorewall 3.0.0 then please see the documentation for that release</emphasis></para> </caution> <section> <title>Shorewall Does not:</title> <itemizedlist> <listitem> <para>Act as a <quote>Personal Firewall</quote> that allows internet access by application.</para> </listitem> <listitem> <para>Work with an Operating System other than Linux (version >= 2.4.0)</para> </listitem> <listitem> <para>Act as a Proxy (although it can be used with a separate proxy such as Squid or Socks).</para> </listitem> <listitem> <para>Do content filtering:</para> <itemizedlist> <listitem> <para>HTTP - better to use <ulink url="Shorewall_Squid_Usage.html">Squid</ulink> and <ulink url="http://dansguardian.org/">Dansguardian</ulink> for that.</para> </listitem> <listitem> <para>Email -- Install something like <ulink url="http://www.postfix.org">Postfix</ulink> on your firewall and integrate it with <ulink url="http://www.spamassassin.org/">SpamAssassin</ulink> , <ulink url="http://www.ijs.si/software/amavisd/">Amavisd-new</ulink> and <ulink url="http://www.clamav.net/">Clamav</ulink></para> </listitem> </itemizedlist> </listitem> <listitem> <para>Configure/manage Network Devices (your Distribution includes tools for that).</para> </listitem> </itemizedlist> </section> <section> <title>In Addition:</title> <itemizedlist> <listitem> <para>Shorewall generally does not contain any support for Netfilter <ulink url="http://www.netfilter.org">Patch-O-Matic-ng</ulink> features or any other features that require kernel patching -- Shorewall only supports features from released kernels except in unusual cases.</para> </listitem> </itemizedlist> </section> </article>