shorewall_code/docs/Shorewall_and_Kazaa.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
<article id="Shorewall_and_Kazaa">
<!--$Id$-->
<articleinfo>
<title>Kazaa Filtering</title>
<authorgroup>
<author>
<firstname>Tom</firstname>
<surname>Eastep</surname>
</author>
</authorgroup>
<pubdate><?dbtimestamp format="Y/m/d"?></pubdate>
<copyright>
<year>2003-2005</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>
<para>Beginning with Shorewall version 1.4.8, Shorewall can interface to
ftwall. <emphasis role="bold">ftwall</emphasis> is part of the <ulink
url="http://p2pwall.sourceforge.net">p2pwall project</ulink> and is a
user-space filter for applications based on the <quote>Fast Track</quote>
peer to peer protocol. Applications using this protocol include Kazaa,
KazaaLite, iMash and Grokster.</para>
<para>To filter traffic from your <quote>loc</quote> zone with ftwall, you
insert the following rules in the ESTABLISHED section of
/etc/shorewall/rules file after any DROP or REJECT rules whose source is the
<quote>loc</quote> zone.</para>
<programlisting> #ACTION SOURCE DEST PROTO
QUEUE loc net tcp
QUEUE loc net udp
QUEUE loc $FW udp</programlisting>
<para>Now simply configure ftwall as described in the ftwall documentation
and restart Shorewall.</para>
<tip>
<para>There are ftwall init scripts for use with
<trademark>SUSE</trademark> and <trademark>Debian</trademark> Linux at
<ulink
url="http://shorewall.net/pub/shorewall/contrib/ftwall">http://shorewall.net/pub/shorewall/contrib/ftwall</ulink>.</para>
</tip>
<para>Shorewall versions 2.2.0 and later also include support for the ipp2p
match facility which can be use to control P2P traffic. See the <ulink
url="IPP2P.html">Shorewall IPP2P documentation</ulink> for details.</para>
</article>