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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>
<!--$Id$-->
<articleinfo>
<title>Samba/SMB</title>
<authorgroup>
<author>
<firstname>Tom</firstname>
<surname>Eastep</surname>
</author>
</authorgroup>
<pubdate><?dbtimestamp format="Y/m/d"?></pubdate>
<copyright>
<year>2002-2005</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 4.3 and
later. If you are running a version of Shorewall earlier than Shorewall
4.3.5 then please see the documentation for that
release.</emphasis></para>
</caution>
<para>If you wish to run Samba on your firewall and access shares between
the firewall and local hosts, you need the following rules:</para>
<programlisting>#ACTION SOURCE DEST PROTO DEST PORT(S) SOURCE
# PORT(S)
SMB(ACCEPT) $FW loc
SMB(ACCEPT) loc $FW</programlisting>
<para>To pass traffic SMB/Samba traffic between zones Z1 and Z2:</para>
<programlisting>#ACTION SOURCE DEST PROTO DEST PORT(S) SOURCE
# PORT(S)
SMB(ACCEPT) Z1 Z2
SMB(ACCEPT) Z2 Z1</programlisting>
<para>To make network browsing (<quote>Network Neighborhood</quote>) work
properly between Z1 and Z2 <emphasis role="bold">requires a Windows Domain
Controller and/or a WINS server.</emphasis> I have run Samba on my firewall
to handle browsing between two zones connected to my firewall.</para>
<para>When debugging Samba/SMB problems, I recommend that you do the
following:</para>
<orderedlist>
<listitem>
<para>Copy <filename>action.Drop</filename> and
<filename>action.Reject</filename> from <filename
class="directory">/usr/share/shorewall</filename> to <filename
class="directory">/etc/shorewall</filename>.</para>
</listitem>
<listitem>
<para>Edit the copies and remove the <emphasis
role="bold">SMB(DROP)</emphasis> and <emphasis
role="bold">SMB(REJECT)</emphasis> lines.</para>
</listitem>
<listitem>
<para><command>shorewall restart</command></para>
</listitem>
</orderedlist>
<para>The above steps will cause SMB traffic that is dropped or rejected by
policy to be logged rather than handled silently.</para>
<para>If you are using <trademark>Windows XP</trademark> to test your
setup,make you sure you have a properly configured client firewall .</para>
<para>You can just remove the copies and <command>shorewall
restart</command> when you are finished debugging.</para>
</article>