shorewall_code/Shorewall-docs2/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 Does Not Do</title>
<author>
<firstname>Tom</firstname>
<surname>Eastep</surname>
</author>
<pubdate>2005-08-03</pubdate>
<copyright>
<year>2003</year>
<year>2004</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>
<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 &gt;=
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>Set up Routing (except to support <ulink
url="ProxyARP.htm">Proxy ARP</ulink>) — Shorewall 2.4.0 and later CAN
set up routing for multiple internet connections.</para>
</listitem>
<listitem>
<para>Do Traffic Shaping/Bandwidth Management (although it provides
<ulink url="traffic_shaping.htm">hooks to interface to Traffic
Control/Bandwidth Management solutions</ulink>)</para>
</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>