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<meta http-equiv="CONTENT-TYPE" content="text/html; charset=utf-8">
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2004-04-12 16:16:46 +02:00
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<title>Shoreline Firewall (Shorewall) 2.0</title>
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2004-09-24 00:58:32 +02:00
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<body dir="ltr" lang="en-US">
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2005-05-03 03:18:53 +02:00
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<h1><span style="font-weight: bold;"></span>Shorewall 2.x</h1>
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2005-07-18 05:14:27 +02:00
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<h2><a href="News.html#20050717"><font color="#ff0000">Security vulnerability in Shorewall 2.x</font></a></h2>
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2005-05-28 16:30:24 +02:00
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<h2><a
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2005-07-16 17:13:42 +02:00
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href="http://sourceforge.net/mailarchive/forum.php?thread_id=7743289&forum_id=45422">Tom's
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Involvement in Shorewall</a><br>
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2005-05-26 19:44:44 +02:00
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</h2>
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<hr style="width: 100%; height: 2px;">
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<p>The information on this site applies only
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2004-11-19 19:10:17 +01:00
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to 2.x releases of Shorewall. For older versions:</p>
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<ul>
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<li>
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<p style="margin-bottom: 0in;">The 1.4 site is <a
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href="http://www.shorewall.net/1.4" target="_top">here.</a></p>
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</li>
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<li>
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<p style="margin-bottom: 0in;">The 1.3 site is <a
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href="http://www.shorewall.net/1.3" target="_top">here.</a> </p>
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</li>
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<li>
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<p>The 1.2 site is <a href="http://shorewall.net/1.2/"
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target="_top">here</a>. </p>
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</li>
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2004-05-28 19:24:32 +02:00
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</ul>
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2005-07-14 15:48:59 +02:00
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<p>The current 2.4 Stable Release is 2.4.1 -- Here are the <a
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href="http://shorewall.net/pub/shorewall/2.4/shorewall-2.4.1/releasenotes.txt">release
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2005-05-10 04:53:58 +02:00
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notes</a> and here are the <a
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2005-07-14 15:48:59 +02:00
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href="http://shorewall.net/pub/shorewall/2.4/shorewall-2.4.1/known_problems.txt">known
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2005-05-10 04:53:58 +02:00
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problems</a> and <a
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2005-07-14 15:48:59 +02:00
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href="http://shorewall.net/pub/shorewall/2.4/shorewall-2.4.1/errata/">updates</a>.<br>
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2005-05-10 04:53:58 +02:00
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</p>
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2004-12-29 00:19:15 +01:00
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<p><a
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href="http://lists.shorewall.net/pipermail/shorewall-announce/2004-December/000451.html"><span
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2005-01-28 04:07:21 +01:00
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style="font-weight: bold;">End of
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support life for Shorewall 1.4 -- Upgrading to Shorewall 2.2</span></a><br>
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2004-08-14 23:00:08 +02:00
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<br>
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2005-01-05 00:26:14 +01:00
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Copyright © 2001-2005 Thomas M. Eastep</p>
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<p>Permission is granted to copy, distribute and/or modify this
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2004-09-24 00:58:32 +02:00
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document under the terms of the GNU Free Documentation License,
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Version 1.2 or any later version published by the Free Software
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Foundation; with no Invariant Sections, with no Front-Cover, and with
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no Back-Cover Texts. A copy of the license is included in the section
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2004-10-27 15:54:31 +02:00
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entitled “<a href="GnuCopyright.htm" target="_self">GNU
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Free Documentation License</a>”.</p>
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2005-07-16 17:13:42 +02:00
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<p>2005-07-16</p>
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2005-05-01 19:02:37 +02:00
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<hr style="width: 100%; height: 2px;">
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<h3>Table of Contents</h3>
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<p style="margin-left: 0.42in; margin-bottom: 0in;"><a href="#Intro">Introduction
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to Shorewall</a></p>
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<p style="margin-left: 0.83in; margin-bottom: 0in;"><a href="#Glossary">Glossary</a><br>
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<a href="#WhatIs">What
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is Shorewall?</a><br>
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<a href="#GettingStarted">Getting Started with
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2004-05-28 19:24:32 +02:00
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Shorewall</a><br>
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<a href="#Info">Looking for Information?</a><br>
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2004-09-24 00:58:32 +02:00
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<a href="#Mandrake">Running
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Shorewall on Mandrake® with a two-interface setup?</a><br>
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2005-05-03 03:18:53 +02:00
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<a href="#License">License</a><br>
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</p>
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2005-05-01 19:02:37 +02:00
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<div style="margin-left: 40px;"><br>
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<a href="#Leaf">Leaf</a><br>
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2005-01-28 04:07:21 +01:00
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<br>
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<a href="#OpenWRT">OpenWRT</a><br>
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</div>
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<p style="margin-left: 40px;"><a href="#Donations">Donations</a></p>
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2004-05-28 19:24:32 +02:00
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<h2><a name="Intro"></a>Introduction to Shorewall</h2>
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<h3><a name="Glossary"></a>Glossary</h3>
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<ul>
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<li>
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<p style="margin-bottom: 0in;"><a href="http://www.netfilter.org/"
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target="_top">Netfilter</a> - the packet filter facility built into
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the 2.4 and later Linux kernels. </p>
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</li>
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<li>
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<p style="margin-bottom: 0in;">ipchains - the packet filter
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facility built into the 2.2 Linux kernels. Also the name of the utility
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program used to configure and control that facility. Netfilter can be
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used in ipchains compatibility mode. </p>
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</li>
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<li>
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<p>iptables - the utility program used to configure and control
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Netfilter. The term 'iptables' is often used to refer to the
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2004-04-12 16:16:46 +02:00
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combination of iptables+Netfilter (with Netfilter not in ipchains
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compatibility mode). </p>
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</li>
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</ul>
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<h3><a name="WhatIs"></a>What is Shorewall?</h3>
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2004-09-24 00:58:32 +02:00
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<p style="margin-left: 0.42in;">The Shoreline Firewall, more commonly
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known as "Shorewall", is a high-level tool for configuring
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Netfilter. You describe your firewall/gateway requirements using
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entries in a set of configuration files. Shorewall reads those
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configuration files and with the help of the iptables utility,
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Shorewall configures Netfilter to match your requirements. Shorewall
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can be used on a dedicated firewall system, a multi-function
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gateway/router/server or on a standalone GNU/Linux system. Shorewall
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does not use Netfilter's ipchains compatibility mode and can thus
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take advantage of Netfilter's <a
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href="http://www.cs.princeton.edu/%7Ejns/security/iptables/iptables_conntrack.html"
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target="_top">connection
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state tracking capabilities</a>.<br>
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<br>
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Shorewall is <u>not</u> a
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daemon. Once Shorewall has configured Netfilter, it's job is
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complete. After that, there is no Shorewall code running although the
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<a href="starting_and_stopping_shorewall.htm">/sbin/shorewall program
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2005-05-01 19:02:37 +02:00
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can be used at any time to monitor the Netfilter firewall</a>.<br>
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</p>
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<p style="margin-left: 0.42in;">Shorewall is not the easiest to use of
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the available iptables configuration tools but I believe that it is the
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most flexible and powerful. So if you are looking for a simple
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point-and-click set-and-forget Linux firewall solution that requires a
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minimum of networking knowledge, I would encourage you to check out the
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following alternatives:</p>
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<ul style="margin-left: 40px;">
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<li><a href="http://www.m0n0.ch/wall">http://www.m0n0.ch/wall</a></li>
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<li><a href="http://www.fs-security.com/">http://www.fs-security.com/</a><br>
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</li>
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</ul>
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<p style="margin-left: 0.42in;">On the other hand, if you are looking
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for a Linux firewall solution that can handle complex and fast changing
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network environments then Shorewall is a logical choice.<br>
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</p>
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2004-05-28 19:24:32 +02:00
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<h3><a name="GettingStarted"></a>Getting Started with Shorewall</h3>
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2004-09-24 00:58:32 +02:00
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<p style="margin-left: 0.42in;">New to Shorewall? Start by selecting
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the <a href="shorewall_quickstart_guide.htm">QuickStart Guide</a>
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that most closely matches your environment and follow the step by
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step instructions.</p>
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2004-05-28 19:24:32 +02:00
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<h3><a name="Info"></a>Looking for Information?</h3>
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<p style="margin-left: 0.42in;">The <a href="Documentation_Index.html">Documentation
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2005-03-12 21:55:45 +01:00
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Index</a> is a good place to start as is the Site Search in the
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2005-05-18 05:50:14 +02:00
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frame above.<br>
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</p>
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2004-05-28 19:24:32 +02:00
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<h3><a name="Mandrake"></a>Running Shorewall on Mandrake® with a
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two-interface setup?</h3>
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2004-09-24 00:58:32 +02:00
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<p style="margin-left: 0.42in;">If so, the documentation on this site
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will not apply directly to your setup. If you want to use the
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documentation that you find here, you will want to consider
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uninstalling what you have and installing a setup that matches the
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documentation on this site. See the <a href="two-interface.htm">Two-interface
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QuickStart Guide</a> for details.<br>
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2004-05-28 19:24:32 +02:00
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<br>
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2005-03-12 21:55:45 +01:00
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<b>Update: </b>I have been
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2004-04-12 16:16:46 +02:00
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informed by Mandrake Development that this problem has been corrected
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in Mandrake 10.0 Final (the problem still exists in the 10.0
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Community release).</p>
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2004-05-28 19:24:32 +02:00
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<h3><a name="License"></a>License</h3>
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<p style="margin-left: 0.42in;">This program is free software; you can
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redistribute it and/or modify it under the terms of <a
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href="http://www.gnu.org/licenses/gpl.html">Version
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2004-04-12 16:16:46 +02:00
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2 of the GNU General Public License</a> as published by the Free
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Software Foundation.</p>
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<p style="margin-left: 0.42in;">This program is distributed in the
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hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the GNU General Public License for more detail.</p>
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<p style="margin-left: 0.42in;">You should have received a copy of the
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GNU General Public License along with this program; if not, write to
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the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA
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02139, USA</p>
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<p style="margin-left: 0.42in;">Permission is granted to copy,
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distribute and/or modify this document under the terms of the GNU
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Free Documentation License, Version 1.2 or any later version
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published by the Free Software Foundation; with no Invariant
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Sections, with no Front-Cover, and with no Back-Cover Texts. A copy
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of the license is included in the section entitled "GNU Free
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Documentation License". </p>
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<hr>
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<h2><a name="Leaf"></a>Leaf</h2>
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<p><a href="http://leaf.sourceforge.net/" target="_top"><font
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color="#000000"><img src="images/leaflogo.gif" name="Graphic1"
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alt="(Leaf Logo)" align="bottom" border="1" height="39" width="52"></font></a>
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LEAF is an open source project which provides a Firewall/router on a
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floppy, CD or CF. Several LEAF distributions including Bering and
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Bering-uClibc use Shorewall as their Netfilter configuration tool.</p>
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2005-01-28 04:07:21 +01:00
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<hr style="width: 100%; height: 2px;">
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<h2><a name="OpenWRT"></a>OpenWRT</h2>
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<a href="http://openwrt.org"><img alt="(OpenWRT Logo)"
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src="images/openwrt.png"
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style="border: 0px solid ; width: 88px; height: 31px;" hspace="4"></a>OpenWRT
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is a project which provides open source firmware for Linksys WRT54G
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wireless routers. Two different Shorewall packages are available for
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OpenWRT.<br>
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<hr>
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2004-08-07 05:33:54 +02:00
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<h2><a name="Donations"></a>Donations</h2>
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<p align="left"><a href="http://www.alz.org/" target="_top"><font
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color="#000000"><img src="images/alz_logo2.gif" name="Graphic2"
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alt="(Alzheimer's Association Logo)" align="right" border="1"
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height="63" width="303"></font></a><a href="http://www.starlight.org/"
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target="_top"><font color="#000000"><img src="images/newlog.gif"
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name="Graphic3" alt="(Starlight Foundation Logo)" align="right"
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border="1" height="105" width="62"></font></a><font size="4">Shorewall
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is free but if you try it and find it useful, please consider making
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a donation to the <a href="http://www.alz.org/" target="_top">Alzheimer's
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Association</a> or to the <a href="http://www.starlight.org/"
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target="_top">Starlight
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Children's Foundation</a>.</font></p>
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<p align="left"><font size="4">Thank You<br>
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</font></p>
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<p align="left"><br>
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<br>
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</p>
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</body>
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</html>
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