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shorewall_code/Shorewall-docs/Shorewall_Doesnt.xml

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<?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 Cannot Do</title>
<author>
<firstname>Tom</firstname>
<surname>Eastep</surname>
</author>
<pubdate>2003-10-07</pubdate>
<copyright>
<year>2003</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>
<section>
<title>Shorewall Cannot:</title>
<itemizedlist>
<listitem>
<para>Be used to filter traffic through a Layer 2 Bridge</para>
</listitem>
<listitem>
<para>Act as a <quote>Personal Firewall</quote> that allows internet
access by application.</para>
</listitem>
<listitem>
<para>Be used with an Operating System other than Linux (version
&#62;= 2.4.0)</para>
</listitem>
<listitem>
<para>Do content filtering:</para>
<itemizedlist>
<listitem>
<para>HTTP - better to use <ulink url="Shorewall_Squid_Usage.html">Squid</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>
and <ulink url="http://www.ijs.si/software/amavisd/">Amavisd-new</ulink>.</para>
</listitem>
</itemizedlist>
</listitem>
</itemizedlist>
</section>
<section>
<title>In Addition:</title>
<itemizedlist>
<listitem>
<para>Shorewall does not contain any support for Netfilter <ulink
url="http://www.netfilter.org/documentation/pomlist/pom-summary.html">Patch-O-Matic</ulink>
features -- Shorewall only supports features from released kernels.</para>
</listitem>
</itemizedlist>
</section>
</article>