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<meta http-equiv="CONTENT-TYPE" content="text/html; charset=utf-8">
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<title>Shoreline Firewall (Shorewall) 2.0</title>
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<base target="_self">
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<meta name="GENERATOR" content="OpenOffice.org 1.1.1 (Linux)">
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<meta name="CHANGED" content="20040920;15183300">
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<body dir="ltr" lang="en-US">
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<h1>Shorewall 2.0</h1>
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<p><b>Tom Eastep</b><br>
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<br>
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The information on this site applies only
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to 2.0.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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</ul>
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2004-09-30 21:10:56 +02:00
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<p>The current 2.0 Stable Release is 2.0.9 -- Here are the <a
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href="http://shorewall.net/pub/shorewall/2.0/shorewall-2.0.9/releasenotes.txt">release
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notes</a>.<br>
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The current 2.1 Developement Release is 2.1.11 -- Here
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are the <a
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href="http://shorewall.net/pub/shorewall/2.1/shorewall-2.1.11/releasenotes.txt">release
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notes</a>.<br>
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<br>
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Copyright © 2001-2004 Thomas M. Eastep</p>
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<p>Permission is granted to copy, distribute and/or modify this
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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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entitled “<a
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href="../../../../vfat/Ursa/Shorewall/Shorewall-Website/GnuCopyright.htm"
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target="_self">GNU
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Free Documentation License</a>”.</p>
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<p>2004-10-14</p>
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<hr>
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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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Shorewall</a><br>
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<a href="#Info">Looking for Information?</a><br>
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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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<a href="#License">License</a></p>
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<p style="margin-bottom: 0in; margin-left: 40px;"><a href="#News">News</a></p>
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<p style="margin-left: 0.83in; margin-bottom: 0in;"><a href="#2_0_9">Shorewall
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2.0.9</a><br>
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<a href="#SupportChange">Change
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in Shorewall Support</a><br>
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<a href="#2_0_8">Shorewall
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2.0.8</a><br>
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<a href="#2_0_7">Shorewall 2.0.7</a><br>
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<a href="#2_0_6">Shorewall
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2.0.6</a><br>
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<a href="#2_0_5">Shorewall 2.0.5</a><br>
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<a href="#2_0_4">Shorewall
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2.0.4</a><br>
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<a href="#Release_Model">New Release Model</a><br>
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<a href="#2_0_3c">Shorewall
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2.0.3c</a><br>
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<a href="#2_0_3b">Shorewall 2.0.3b</a><br>
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<a href="#2_0_3a">Shorewall
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2.0.3a</a><br>
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<a href="#2_0_3">Shorewall 2.0.3</a><br>
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<br>
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</p>
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<div style="margin-left: 40px;"><a href="#Leaf">Leaf</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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<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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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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<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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can be used at any time to monitor the Netfilter firewall</a>.</p>
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<h3><a name="GettingStarted"></a>Getting Started with Shorewall</h3>
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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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<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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Index</a> is a good place to start as is the Quick Search in the
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frame above. </p>
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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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<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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<br>
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<b>Update: </b>I've been
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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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<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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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="News"></a>News</h2>
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<span style="font-weight: bold;"><a name="2_0_9"></a>9/23/2004 -
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Shorewall 2.0.9<br>
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</span><br>
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Problems Corrected:<br>
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<ol>
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<li>Previously, an empty PROTO column or a value of "all" in that
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column would cause errors when processing the /etc/shorewall/tcrules
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file.</li>
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</ol>
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New Features:<br>
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<ol>
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<li>The "shorewall status" command now includes the output of "brctl
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show" if the bridge tools are installed.<br>
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</li>
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</ol>
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<p><a name="SupportChange"><b>9/20/2004 – Change in Shorewall Support</b></a></p>
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<p style="">Friends,</p>
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<p style="">The demands that my job and my
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personal life are currently placing on me are such that supporing
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Shorewall to the extent that I have been doing is just not possible
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any more.</p>
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<p style="">I will continue to be active on the
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development list and will continue to develop Shorewall if at all
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possible.</p>
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<p style="">I will also continue to read the
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user's list and will help with problems that interest me. But I am no
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longer going to hop on every problem as soon as I see it.</p>
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<p style="">This change means that I'm going to
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have to depend on you folks to help each other; I'm confident that we
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can make this work.</p>
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<p><a name="2_0_8"></a><b>8/22/2004 -
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Shorewall 2.0.8<br>
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</b><br>
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Problems Corrected:</p>
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<ol>
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<li>
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<p>Entries in the USER/GROUP column of an action file (made from
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action.template) may be ignored or cause odd errors. </p>
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</li>
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</ol>
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<p><a name="2_0_7"></a><b>7/29/2004 - Shorewall 2.0.7<br>
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<br>
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</b>Problems
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Corrected:</p>
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<ol>
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<li>
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<p style="margin-bottom: 0in;">The PKTTYPE option introduced in
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version 2.0.6 is now used when generating rules to REJECT packets.
|
|
|
|
|
|
Broadcast packets are silently dropped rather than being rejected with
|
|
|
|
|
|
an ICMP (which is a protocol violation) and users whose kernels have
|
|
|
|
|
|
broken packet type match support are likely to see messages reporting
|
|
|
|
|
|
this violation. Setting PKTTYPE=No should cause these messages to
|
|
|
|
|
|
cease. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Multiple interfaces with the
|
|
|
|
|
|
'blacklist' option no longer result in an error message at startup. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>The following has been added to /etc/shorewall/bogons:<br>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<br>
|
|
|
|
|
|
0.0.0.0 RETURN<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
This prevents the 'nobogons' option from logging DHCP 'DISCOVER'
|
2004-09-24 00:58:32 +02:00
|
|
|
|
broadcasts.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p>New Features:</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p>To improve supportability, the "shorewall status" command now
|
2004-08-07 05:33:54 +02:00
|
|
|
|
includes IP and Route configuration information.<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
Example:<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">IP Configuration</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">1: lo: <LOOPBACK,UP> mtu
|
|
|
|
|
|
16436 qdisc noqueue</font><br>
|
|
|
|
|
|
<font face="monospace">link/loopback
|
|
|
|
|
|
00:00:00:00:00:00 brd 00:00:00:00:00:00</font><br>
|
|
|
|
|
|
<font face="monospace">inet 127.0.0.1/8
|
|
|
|
|
|
brd 127.255.255.255 scope host lo</font><br>
|
|
|
|
|
|
<font face="monospace">inet6 ::1/128
|
|
|
|
|
|
scope host</font><br>
|
|
|
|
|
|
<font face="monospace">2: eth0:
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen
|
2004-09-24 00:58:32 +02:00
|
|
|
|
1000</font><br>
|
|
|
|
|
|
<font face="monospace">link/ether
|
|
|
|
|
|
00:a0:c9:15:39:78 brd ff:ff:ff:ff:ff:ff</font><br>
|
|
|
|
|
|
<font face="monospace">inet6
|
|
|
|
|
|
fe80::2a0:c9ff:fe15:3978/64 scope link</font><br>
|
|
|
|
|
|
<font face="monospace">3: eth1:
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen
|
2004-09-24 00:58:32 +02:00
|
|
|
|
1000</font><br>
|
|
|
|
|
|
<font face="monospace">link/ether
|
|
|
|
|
|
00:a0:c9:a7:d7:bf brd ff:ff:ff:ff:ff:ff</font><br>
|
|
|
|
|
|
<font face="monospace">inet6
|
|
|
|
|
|
fe80::2a0:c9ff:fea7:d7bf/64 scope link</font><br>
|
|
|
|
|
|
<font face="monospace">5: sit0@NONE: <NOARP> mtu
|
|
|
|
|
|
1480 qdisc noop</font><br>
|
|
|
|
|
|
<font face="monospace">link/sit 0.0.0.0
|
|
|
|
|
|
brd 0.0.0.0</font><br>
|
|
|
|
|
|
<font face="monospace">6: eth2:
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<BROADCAST,MULTICAST,PROMISC,UP> mtu 1500 qdisc pfifo_fast qlen
|
2004-09-24 00:58:32 +02:00
|
|
|
|
1000</font><br>
|
|
|
|
|
|
<font face="monospace">link/ether
|
|
|
|
|
|
00:40:d0:07:3a:1b brd ff:ff:ff:ff:ff:ff</font><br>
|
|
|
|
|
|
<font face="monospace">inet6
|
|
|
|
|
|
fe80::240:d0ff:fe07:3a1b/64 scope link</font><br>
|
|
|
|
|
|
<font face="monospace">7: br0:
|
|
|
|
|
|
<BROADCAST,MULTICAST,NOTRAILERS,UP> mtu 1500 qdisc noqueue</font><br>
|
|
|
|
|
|
<font face="monospace">link/ether
|
|
|
|
|
|
00:40:d0:07:3a:1b brd ff:ff:ff:ff:ff:ff</font><br>
|
|
|
|
|
|
<font face="monospace">inet
|
|
|
|
|
|
192.168.1.3/24 brd 192.168.1.255 scope global br0</font><br>
|
|
|
|
|
|
<font face="monospace">inet6
|
|
|
|
|
|
fe80::240:d0ff:fe07:3a1b/64 scope link</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">Routing Rules</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">0:
|
|
|
|
|
|
from all lookup local</font><br>
|
|
|
|
|
|
<font face="monospace">32765: from all
|
|
|
|
|
|
fwmark ca lookup www.out</font><br>
|
|
|
|
|
|
<font face="monospace">32766: from all lookup main</font><br>
|
|
|
|
|
|
<font face="monospace">32767: from all lookup
|
|
|
|
|
|
default</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">Table local:</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">broadcast 192.168.1.0 dev
|
|
|
|
|
|
br0 proto kernel scope link src 192.168.1.3</font><br>
|
|
|
|
|
|
<font face="monospace">broadcast 127.255.255.255 dev
|
|
|
|
|
|
lo proto kernel scope link src 127.0.0.1</font><br>
|
|
|
|
|
|
<font face="monospace">local 192.168.1.3 dev br0
|
|
|
|
|
|
proto kernel scope host src 192.168.1.3</font><br>
|
|
|
|
|
|
<font face="monospace">broadcast 192.168.1.255 dev
|
|
|
|
|
|
br0 proto kernel scope link src 192.168.1.3</font><br>
|
|
|
|
|
|
<font face="monospace">broadcast 127.0.0.0 dev lo
|
|
|
|
|
|
proto kernel scope link src 127.0.0.1</font><br>
|
|
|
|
|
|
<font face="monospace">local 127.0.0.1 dev lo proto
|
|
|
|
|
|
kernel scope host src 127.0.0.1</font><br>
|
|
|
|
|
|
<font face="monospace">local 127.0.0.0/8 dev lo
|
|
|
|
|
|
proto kernel scope host src 127.0.0.1</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">Table www.out:</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">default via 192.168.1.3 dev br0</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">Table main:</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">192.168.1.0/24 dev br0 proto
|
|
|
|
|
|
kernel scope link src 192.168.1.3</font><br>
|
|
|
|
|
|
<font face="monospace">default via 192.168.1.254 dev br0</font><br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
<font face="monospace">Table default:</font></p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="2_0_6"></a><b>7/16/2004 - Shorewall 2.0.6<br>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
</b>Problems
|
|
|
|
|
|
Corrected:</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<ul>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Some users have reported the packet
|
|
|
|
|
|
type match option in iptables/Netfilter failing to match certain
|
|
|
|
|
|
broadcast packets. The result is that the firewall log shows a lot of
|
|
|
|
|
|
broadcast packets.<br>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<br>
|
|
|
|
|
|
Other users have complained of the following message when starting
|
|
|
|
|
|
Shorewall:<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
|
|
|
|
|
|
modprobe: cant locate module ipt_pkttype<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
Users experiencing either of these problems can use PKTTYPE=No in
|
|
|
|
|
|
shorewall.conf to cause Shorewall to use IP address filtering of
|
2004-09-24 00:58:32 +02:00
|
|
|
|
broadcasts rather than packet type. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The shorewall.conf and zones file
|
|
|
|
|
|
are no longer given execute permission by the installer script. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>ICMP packets that are in the INVALID state are now dropped by
|
|
|
|
|
|
the Reject and Drop default actions. They do so using the new
|
|
|
|
|
|
'dropInvalid' builtin action.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="2_0_5"></a><b>7/10/2004 - Shorewall 2.0.5<br>
|
|
|
|
|
|
</b><br>
|
|
|
|
|
|
Problems
|
|
|
|
|
|
Corrected:</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<ul>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">If DISABLE_IPV6=Yes in
|
|
|
|
|
|
shorewall.conf then harmless error messages referring to $RESTOREBASE
|
|
|
|
|
|
are generated during <b>shorewall stop</b>. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>An anachronistic comment concerning a mangle option has been
|
|
|
|
|
|
removed from shorewall.conf.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="2_0_4"></a><b>7/06/2004 - Shorewall 2.0.4<br>
|
|
|
|
|
|
</b><br>
|
|
|
|
|
|
Problems
|
|
|
|
|
|
Corrected:</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<ul>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p>Rules with $FW as the source zone and that specify logging can
|
|
|
|
|
|
cause "shorewall start" to fail.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="Release_Model"></a><b>7/03/2004 - New Shorewall Release
|
|
|
|
|
|
Model<br>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
</b>Effective today, Shorewall is adopting a new release
|
|
|
|
|
|
model which takes ideas from the one used in the Linux Kernel and
|
|
|
|
|
|
from the release model for Postfix.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Releases continue to have a
|
|
|
|
|
|
three-level identification <i>x.y.z</i> (e.g., 2.0.3).</p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The first two levels (<i>x.y)</i>
|
|
|
|
|
|
designate the <i>Major Release Number</i> (e.g., 2.0) </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The third level (<i>z</i>)
|
|
|
|
|
|
designates the <i>Minor Release Number</i>. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Even numbered major releases (e.g., <i>1.4,
|
|
|
|
|
|
2.0, 2.2, ...)</i> are <i>Stable Releases</i>. No new features are
|
|
|
|
|
|
added to stable releases and new minor releases of a stable release
|
2004-08-07 05:33:54 +02:00
|
|
|
|
will only contain bug fixes. Installing a new minor release for the
|
|
|
|
|
|
major release that you are currently running involves no migration
|
|
|
|
|
|
issues (for example, if you are running 1.4.10 and I release 1.4.11,
|
2004-09-24 00:58:32 +02:00
|
|
|
|
your current configuration is 100% compatible with the new release). </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Support is available through the <a
|
|
|
|
|
|
href="http://lists.shorewall.net/">Mailing List </a>for the two most
|
|
|
|
|
|
recent Stable Releases.</p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Odd numbered major releases (e.g.,
|
|
|
|
|
|
2.1, 2.3, ...) are <i>Development Releases</i>. Development releases
|
|
|
|
|
|
are where new functionality is introduced. Documentation for new
|
|
|
|
|
|
features will be available but it may not be up to the standards of the
|
|
|
|
|
|
stable release documentation. Sites running Development Releases should
|
|
|
|
|
|
be prepared to play an active role in testing new features. Bug fixes
|
|
|
|
|
|
and problem resolution for the development release take a back seat to
|
|
|
|
|
|
support of the stable releases. Problem reports for the current
|
2004-08-07 05:33:54 +02:00
|
|
|
|
development release should be sent to the <a
|
|
|
|
|
|
href="mailto:shorewall-devel@lists.shorewall.net">Shorewall
|
2004-09-24 00:58:32 +02:00
|
|
|
|
Development Mailing List</a>.</p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">When the level of functionality of
|
|
|
|
|
|
the current development release is judged adaquate, the Beta period for
|
|
|
|
|
|
a new Stable release will begin. Beta releases have identifications of
|
|
|
|
|
|
the form <i>x.y.0-BetaN</i> where <i>x.y</i> is the number of the
|
|
|
|
|
|
next Stable Release and <i>N</i>=1,2,3... . Betas are expected to
|
|
|
|
|
|
occur rougly once per year. Beta releases may contain new functionality
|
|
|
|
|
|
not present in the previous beta release (e.g., 2.2.0-Beta4 may contain
|
|
|
|
|
|
functionality not present in 2.2.0-Beta3). When I'm confident that the
|
|
|
|
|
|
current Beta release is stable, I will release the first <i>Release
|
|
|
|
|
|
Candidate. </i>Release candidates have identifications of the form <i>x.y.0-RCn
|
|
|
|
|
|
</i>where <i>x.y </i>is the number of the next Stable Release and
|
|
|
|
|
|
<i>n</i>=1,2,3... . Release candidates contain no new functionailty
|
|
|
|
|
|
-- they only contain bug fixes. When the stability of the current
|
|
|
|
|
|
release candidate is judged to be sufficient then that release
|
|
|
|
|
|
candidate will be released as the new stable release (e.g., 2.2.0). At
|
|
|
|
|
|
that time, the new stable release and the prior stable release are
|
|
|
|
|
|
those that are supported. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">What does it mean for a major
|
|
|
|
|
|
release to be <i>supported?</i> It means that I will answer questions
|
|
|
|
|
|
about the release and that if a bug is found, I will fix the bug and
|
|
|
|
|
|
include the fix in the next minor release. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>Between minor releases, bug fixes will continue to be made
|
|
|
|
|
|
available through the Errata page for each major release.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p>The immediate implications of this change are as follows:</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The functionality of the 2.0 major
|
|
|
|
|
|
release is frozen at the level of minor release 2.0.3. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The two major releases currently
|
|
|
|
|
|
supported are 1.4 and 2.0. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">I will be opening the 2.1
|
|
|
|
|
|
development release shortly with the release of 2.1.0. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>Bug-fix releases with identifications of the form <i>x.y.zX </i>where
|
|
|
|
|
|
X=a,b,c,... (e.g., 2.0.3c) will not be seen in the future.</p>
|
2004-08-07 05:33:54 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="2_0_3c"></a><b>7/02/2004 - Shorewall 2.0.3c<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
</b>Problems
|
|
|
|
|
|
Corrected<b>:</b></p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Error messages regarding
|
|
|
|
|
|
$RESTOREBASE occur during <b>shorewall stop</b> </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>If CLEAR_TC=Yes in <tt>shorewall.conf</tt>, <b>shorewall stop</b>
|
|
|
|
|
|
fails without removing the lock file. </p>
|
|
|
|
|
|
</li>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="2_0_3b"></a><b><br>
|
|
|
|
|
|
6/30/2004 - Shorewall 2.0.3b and
|
|
|
|
|
|
Shorewall 1.4.10g<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
</b>Problems Corrected:</p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The security vulnerability fix
|
|
|
|
|
|
released in Shorewall 2.0.3a failed under Slackware 9.1. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>The security vulnerability fix released in Shorewall 2.0.3a
|
|
|
|
|
|
failed if mktemp was not installed.</p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
</li>
|
|
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p><a name="2_0_3a"></a><b>6/28/2004 - Shorewall 2.0.3a and Shorewall
|
|
|
|
|
|
1.4.10f<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
</b>Problems Corrected:</p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Javier Fernández-Sanguino Peña has
|
|
|
|
|
|
discovered an exploitable vulnerability in the way that Shorewall
|
|
|
|
|
|
handles temporary files and directories. The vulnerability can allow a
|
|
|
|
|
|
non-root user to cause arbitrary files on the system to be overwritten.
|
|
|
|
|
|
LEAF Bering and Bering uClibc users are generally not at risk due to
|
|
|
|
|
|
the fact that LEAF boxes do not typically allow logins by non-root
|
|
|
|
|
|
users. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>(2.0.3a only) A non-empty DEST entry in /etc/shorewall/tcrules
|
|
|
|
|
|
will generate an error and Shorewall fails to start. </p>
|
|
|
|
|
|
</li>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p style="margin-left: 0.42in;">Note:: Slackware users may need the
|
2004-07-03 00:42:04 +02:00
|
|
|
|
'functions' file from CVS (STABLE/ project for 1.4.10f and STABLE2/
|
|
|
|
|
|
project for 2.0.3a) to prevent startup errors with these versions
|
2004-09-24 00:58:32 +02:00
|
|
|
|
installed. These updatged files are also available from the Errata
|
|
|
|
|
|
(<a href="errata.htm">2.0,</a> <a href="1.4/errata.htm">1.4</a>).</p>
|
|
|
|
|
|
<p><a name="2_0_3"></a><b>6/23/2004 - Shorewall 2.0.3<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
</b>Problems
|
|
|
|
|
|
Corrected:</p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The 'firewall' script is not purging
|
|
|
|
|
|
temporary restore files in /var/lib/shorewall. These files have names
|
|
|
|
|
|
of the form "restore-nnnnn". </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The /var/lib/shorewall/restore
|
|
|
|
|
|
script did not load the kernel modules specified in
|
|
|
|
|
|
/etc/shorewall/modules. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Specifying a null common action in
|
|
|
|
|
|
/etc/shorewall/actions (e.g., :REJECT) results in a startup error. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">If /var/lib/shorewall does not
|
|
|
|
|
|
exist, shorewall start fails. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">DNAT rules with a dynamic source
|
|
|
|
|
|
zone don't work properly. When used, these rules cause the rule to be
|
|
|
|
|
|
checked against ALL input, not just input from the designated zone. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The install.sh script reported
|
|
|
|
|
|
installing some files in /etc/shorewall when the files were actually
|
|
|
|
|
|
installed in /usr/share/shorewall. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Shorewall checks netfilter
|
|
|
|
|
|
capabilities before loading kernel modules. Hence if kernel module
|
|
|
|
|
|
autoloading isn't enabled, the capabilities will be misdetected. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The 'newnotsyn' option in
|
|
|
|
|
|
/etc/shorewall/hosts has no effect. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The file /etc/init.d/shorewall now
|
|
|
|
|
|
gets proper ownership when the RPM is built by a non-root user. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Rules that specify bridge ports in
|
|
|
|
|
|
both the SOURCE and DEST columns no longer cause "shorewall start" to
|
|
|
|
|
|
fail. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Comments in the rules file have been
|
|
|
|
|
|
added to advise users that "all" in the SOURCE or DEST column does not
|
|
|
|
|
|
affect intra-zone traffic. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>With BLACKLISTNEWONLY=Yes, ICMP packets with state INVALID are
|
2004-07-03 00:42:04 +02:00
|
|
|
|
now passed through the blacklisting chains. Without this change, it is
|
|
|
|
|
|
not possible to blacklist hosts that are mounting certain types of
|
2004-09-24 00:58:32 +02:00
|
|
|
|
ICMP-based DOS attacks. </p>
|
|
|
|
|
|
</li>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p>Issues when migrating from Shorewall 2.0.2 to Shorewall 2.0.3:</p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p>The 'dropNonSyn' standard builtin action has been replaced with
|
2004-07-03 00:42:04 +02:00
|
|
|
|
the 'dropNotSyn' standard builtin action. The old name can still be
|
2004-09-24 00:58:32 +02:00
|
|
|
|
used but will generate a warning. </p>
|
|
|
|
|
|
</li>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
</ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<p>New Features:</p>
|
2004-05-28 19:24:32 +02:00
|
|
|
|
<ol>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Shorewall now supports multiple
|
|
|
|
|
|
saved configurations. </p>
|
|
|
|
|
|
<ol>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The default saved configuration
|
|
|
|
|
|
(restore script) in /var/lib/shorewall is now specified using the
|
|
|
|
|
|
RESTOREFILE option in shorewall.conf. If this variable isn't set then
|
|
|
|
|
|
to maintain backward compatibility, 'restore' is assumed.<br>
|
|
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
The value of RESTOREFILE must be a simple file name; no slashes ("/")
|
2004-09-24 00:58:32 +02:00
|
|
|
|
may be included.</p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The "save" command has been
|
|
|
|
|
|
extended to be able to specify the name of a saved configuration.<br>
|
|
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
shorewall
|
|
|
|
|
|
save [ <file name> ]<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
The current state is saved to /var/lib/shorewall/<file name>. If
|
|
|
|
|
|
no <file name> is given, the configuration is saved to the file
|
2004-09-24 00:58:32 +02:00
|
|
|
|
determined by the RESTOREFILE setting. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The "restore" command has been
|
|
|
|
|
|
extended to be able to specify the name of a saved configuration:<br>
|
|
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
shorewall
|
|
|
|
|
|
restore [ <file name> ]<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
The firewall state is restored from /var/lib/shorewall/<file
|
|
|
|
|
|
name>. If no <file name> is given, the firewall state is
|
2004-09-24 00:58:32 +02:00
|
|
|
|
restored from the file determined by the RESTOREFILE setting. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The "forget" command has
|
|
|
|
|
|
changed. Previously, the command unconditionally removed the
|
|
|
|
|
|
/var/lib/shorewall/save file which records the current dynamic
|
|
|
|
|
|
blacklist. The "forget" command now leaves that file alone.<br>
|
|
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
Also, the "forget" command has been extended to be able to specify the
|
|
|
|
|
|
name of a saved configuration:<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
|
|
|
|
|
|
shorewall forget [ <file name> ]<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
The file /var/lib/shorewall/<file name> is removed. If no
|
|
|
|
|
|
<file name> is given, the file determined by the RESTOREFILE
|
2004-09-24 00:58:32 +02:00
|
|
|
|
setting is removed. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">The "shorewall -f start" command
|
|
|
|
|
|
restores the state from the file determined by the RESTOREFILE setting.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ol>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">"!" is now allowed in accounting
|
|
|
|
|
|
rules. </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">Interface names appearing within the
|
|
|
|
|
|
configuration are now verified. Interface names must match the name of
|
|
|
|
|
|
an entry in /etc/shorewall/interfaces (or if bridging is enabled, they
|
|
|
|
|
|
must match the name of an entry in /etc/shorewall/interfaces or the
|
|
|
|
|
|
name of a bridge port appearing in /etc/shorewall/hosts). </p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p style="margin-bottom: 0in;">A new 'rejNotSyn' built-in standard
|
|
|
|
|
|
action has been added. This action responds to "New not SYN" packets
|
|
|
|
|
|
with an RST.<br>
|
2004-07-03 00:42:04 +02:00
|
|
|
|
<br>
|
|
|
|
|
|
The 'dropNonSyn' action has been superceded by the new 'dropNotSyn'
|
|
|
|
|
|
action. The old name will be accepted until the next major release of
|
|
|
|
|
|
Shorewall but will generate a warning.<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
Several new logging actions involving "New not SYN" packets have been
|
|
|
|
|
|
added:<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
logNewNotSyn -- logs
|
|
|
|
|
|
the packet with disposition = LOG<br>
|
|
|
|
|
|
dLogNewNotSyn -- logs the
|
|
|
|
|
|
packet with disposition = DROP<br>
|
|
|
|
|
|
rLogNewNotSyn -- logs the
|
|
|
|
|
|
packet with disposition = REJECT<br>
|
|
|
|
|
|
<br>
|
|
|
|
|
|
The packets are logged at the log level specified in the LOGNEWNOTSYN
|
|
|
|
|
|
option in shorewall.conf. If than option is empty or not specified,
|
|
|
|
|
|
then 'info' is assumed.<br>
|
|
|
|
|
|
<br>
|
2004-09-24 00:58:32 +02:00
|
|
|
|
Examples (In all cases, set NEWNOTSYN=Yes in shorewall.conf): </p>
|
|
|
|
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|
<ol>
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<li>
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<p style="margin-bottom: 0in;">To simulate the behavior of
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NEWNOTSYN=No: </p>
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<ol>
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<li>
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<p style="margin-bottom: 0in;">Add 'NoNewNotSyn' to
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/etc/shorewall/actions. </p>
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</li>
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<li>
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<p>Create /etc/shorewall/action.NoNewNotSyn containing:<br>
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<br>
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2004-07-03 00:42:04 +02:00
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dLogNotSyn<br>
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2004-09-24 00:58:32 +02:00
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dropNotSyn</p>
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</li>
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<li>
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<p>Early in your rules file, place:<br>
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<br>
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2004-07-03 00:42:04 +02:00
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2004-09-24 00:58:32 +02:00
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NoNewNotSyn all all tcp</p>
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</li>
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</ol>
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</li>
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<li>
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<p style="margin-bottom: 0in;">Drop 'New not SYN' packets from
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the net only. Don't log them: </p>
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<ol>
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<li>
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<p>Early in your rules file, place:<br>
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<br>
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2004-07-03 00:42:04 +02:00
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dropNotSyn
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2004-09-24 00:58:32 +02:00
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net all tcp</p>
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</li>
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</ol>
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2004-07-03 00:42:04 +02:00
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</li>
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</ol>
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2004-09-24 00:58:32 +02:00
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</li>
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<li>
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<p>Slackware users no longer have to modify the install.sh script
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2004-07-03 00:42:04 +02:00
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before installation. Tuomo Soini has provided a change that allows the
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INIT and FIREWALL variables to be specified outside the script as in:<br>
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<br>
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DEST=/etc/rc.d INIT=rc.firewall
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2004-09-24 00:58:32 +02:00
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./install.sh</p>
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2004-05-28 19:24:32 +02:00
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</li>
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</ol>
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<p><a href="News.htm">More News</a></p>
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2004-09-24 00:58:32 +02:00
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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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<hr>
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2004-08-07 05:33:54 +02:00
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<h2><a name="Donations"></a>Donations</h2>
|
2004-09-24 00:58:32 +02:00
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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">Thanks</font></p>
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<p align="left"><br>
|
2004-05-28 19:24:32 +02:00
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<br>
|
2004-09-24 00:58:32 +02:00
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</p>
|
2004-04-12 16:16:46 +02:00
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</body>
|
2003-12-30 02:19:52 +01:00
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</html>
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