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9.1 KiB
HTML
222 lines
9.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="CONTENT-TYPE" content="text/html; charset=UTF-8">
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<title>Shoreline Firewall (Shorewall) 3.*</title>
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<base target="_self">
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<meta name="CREATED" content="20040920;15031500">
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<meta name="CHANGED"
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content="$Id$">
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</head>
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<body dir="ltr" lang="en-US">
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<h1>Shoreline Firewall (Shorewall)</h1>
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<p>Copyright © 2001-2007 Thomas M. Eastep</p>
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<p>Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.2 or any
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later version 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 of the
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license is included in the section entitled “<a href="GnuCopyright.htm"
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target="_self">GNU Free Documentation License</a>”.</p>
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<p>2007-07-30</p>
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<hr style="width: 100%; height: 2px;">
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<h2>Table of Contents</h2>
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<p style="margin-left: 0.42in; margin-bottom: 0in;"><a
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href="#Intro">Introduction to Shorewall</a> </p>
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<p style="margin-left: 0.83in; margin-bottom: 0in;"><a
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href="#Glossary">Glossary</a><br>
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<a href="#WhatIs">What is Shorewall?</a><br>
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<a href="#Releases">Current Shorewall Releases</a><br>
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<a href="#GettingStarted">Getting Started with Shorewall</a><br>
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<a href="#Info">Looking for Information?</a><br>
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<a href="#License">License</a></p>
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<p style="margin-left: 0.42in;"><br>
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<a href="#Leaf">Leaf</a><br>
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<a href="#OpenWRT">OpenWRT</a><br>
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<a href="#Donations">Donations</a></p>
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<h3><a name="Glossary"></a>Glossary</h3>
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<ul>
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<li><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 the
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2.4 and later Linux kernels.</p>
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</li>
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<li><p style="margin-bottom: 0in;">ipchains - the packet filter facility
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built into the 2.2 Linux kernels. Also the name of the utility program
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used to configure and control that facility. Netfilter can be used in
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ipchains compatibility mode.</p>
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</li>
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<li><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 combination
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of iptables+Netfilter (with Netfilter not in ipchains compatibility
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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 known
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as "Shorewall", is a high-level tool for configuring Netfilter. You describe
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your firewall/gateway requirements using entries in a set of configuration
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files. Shorewall reads those configuration files and with the help of the
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iptables utility, Shorewall configures Netfilter to match your requirements.
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Shorewall 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 does not
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use Netfilter's ipchains compatibility mode; as a consequence, Shorewall can
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take advantage of Netfilter's connection state tracking capabilities to
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create a stateful firewall.<br>
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<br>
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Shorewall is <u>not</u> a daemon. Once Shorewall has configured Netfilter,
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it's job is complete and there is no Shorewall code left running in the
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system. The <a href="starting_and_stopping_shorewall.htm">/sbin/shorewall
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program can be used at any time to monitor the Netfilter firewall</a>.</p>
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<p style="margin-left: 0.42in;">Shorewall is not the easiest to use of the
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available iptables configuration tools but I believe that it is the most
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flexible and powerful. So if you are looking for a simple point-and-click
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set-and-forget Linux firewall solution that requires a minimum of networking
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knowledge, I would encourage you to check out the following alternatives:</p>
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<ul>
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<li><p style="margin-bottom: 0in;"><a
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href="http://www.m0n0.ch/wall">m0n0wall</a> (FreeBSD Based) </p>
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</li>
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<li><p><a href="http://www.fs-security.com/">Firestarter</a></p>
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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 for a
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Linux firewall solution that can handle complex and fast changing network
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environments then Shorewall is a logical choice.</p>
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<p style="margin-left: 0.42in;">To see some of the many things that you can
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do with Shorewall, see the <a href="shorewall_features.htm">Shorewall
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Features page</a>.<br>
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</p>
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<h3><a name="Releases"></a>Current Shorewall Releases</h3>
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<p style="margin-left: 40px;">The <span style="font-weight: bold;">current
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Stable Release</span> version is 4.0.1<br>
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</p>
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<ul style="margin-left: 40px;">
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<li>Here are the <a
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href="http://www1.shorewall.net/pub/shorewall/4.0/shorewall-4.0.1/releasenotes.txt">release
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notes</a> <br>
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</li>
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<li>Here are the <a
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href="http://www1.shorewall.net/pub/shorewall/4.0/shorewall-4.0.1/known_problems.txt">known
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problems</a> and <a
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href="http://www1.shorewall.net/pub/shorewall/4.0/shorewall-4.0.1/errata/">updates</a>.
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<p>Read more about the <a href="Shorewall-4.html">Release here</a>.<br>
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</p>
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</li>
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</ul>
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<div style="margin-left: 40px;">
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The <span style="font-weight: bold;">previous Stable Release</span> version
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is 3.4.5<br>
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<ul>
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<li>Here are the <a
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href="http://www1.shorewall.net/pub/shorewall/3.4/shorewall-3.4.5/releasenotes.txt">release
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notes</a> <br>
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</li>
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<li>Here are the <a
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href="http://www1.shorewall.net/pub/shorewall/3.4/shorewall-3.4.5/known_problems.txt">known
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problems</a> and <a
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href="http://www1.shorewall.net/pub/shorewall/3.4/shorewall-3.4.5/errata/">updates</a>.</li>
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</ul>
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The <span style="font-weight: bold;">current Development Release</span> is
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4.1. No packages yet been made available for this release. </div>
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<div style="margin-left: 40px;">
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<p>Get them from the <a href="download.htm">download sites</a></p>
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</div>
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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? Download the current Stable
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version (see above) then select the <a
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href="shorewall_quickstart_guide.htm">QuickStart Guide</a> that most closely
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matches your environment and follow the step by 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
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href="Documentation.html">Documentation Index</a> is a good place to start as
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is the Site Search in the frame above.</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 2 of the GNU General
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Public License</a> as published by the Free Software Foundation.</p>
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<p style="margin-left: 0.42in;">This program is distributed in the hope that
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it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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 GNU
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General Public License along with this program; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA</p>
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<p style="margin-left: 0.42in;">Permission is granted to copy, distribute
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and/or modify this document under the terms of the GNU Free Documentation
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License, 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 no
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Back-Cover Texts. A copy of the license is included in the section entitled
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"GNU Free Documentation License".</p>
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<hr>
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<h2><a name="Leaf"></a>Leaf</h2>
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<p><font color="#000080"><a href="http://leaf.sourceforge.net/"
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target="_top"><font color="#000080"><img src="images/leaflogo.gif"
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name="Graphic1" alt="(Leaf Logo)" align="bottom" border="1" height="39"
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width="52" /></font></a></font> LEAF is an open source project which provides
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a Firewall/router on a floppy, CD or CF. Several LEAF distributions including
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Bering and Bering-uClibc use Shorewall as their Netfilter configuration
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tool.</p>
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<hr>
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<h2><a name="OpenWRT"></a>OpenWRT</h2>
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<p style="margin-bottom: 0in;"><font color="#000000"><a
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href="http://openwrt.org/"><font color="#000080"><img
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src="images/openwrt.png" name="graphics1" alt="(OpenWRT Logo)" align="bottom"
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border="1" height="34" hspace="4" width="91" /></font></a></font>OpenWRT is a
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project which provides open source firmware for Linksys WRT54G wireless
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routers. Two different Shorewall packages are available for OpenWRT.</p>
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<hr>
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<h2><a name="Donations"></a>Donations</h2>
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<p><a href="http://www.alz.org/" target="_top"><font color="#000080"><img
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src="images/alz_logo2.gif" name="Graphic2"
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alt="(Alzheimer's Association Logo)" align="right" border="1" height="66"
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width="306" /></font></a><a href="http://www.starlight.org/"
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target="_top"><font color="#000080"><img src="images/newlog.gif"
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name="Graphic3" alt="(Starlight Foundation Logo)" align="right" border="1"
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height="108" width="65" /></font></a>Shorewall is free but if you try it and
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find it useful, please consider making a donation to the <a
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href="http://www.alz.org/" target="_top">Alzheimer's Association</a> or to
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the <a href="http://www.starlight.org/" target="_top">Starlight Children's
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Foundation</a>. <br>
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<br>
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Thank You</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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