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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<meta http-equiv="CONTENT-TYPE" content="text/html; charset=utf-8">
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<title>Shoreline Firewall (Shorewall) 3.0</title>
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<meta name="GENERATOR" content="OpenOffice.org 2.0 (Linux)">
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<meta name="CREATED" content="20040920;15031500">
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<body dir="ltr" lang="en-US">
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<h1>Shoreline Firewall (Shorewall)</h1>
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<p>The current Stable Version is 3.0.5 -- Get it from the
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<a href="download.htm">download sites</a>. Here are the <a
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href="http://www.shorewall.net/pub/shorewall/3.0/shorewall-3.0.5/releasenotes.txt">release
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notes</a> and here are the <a
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href="http://www.shorewall.net/pub/shorewall/3.0/shorewall-3.0.5/known_problems.txt">known
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problems</a> and <a
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href="http://www.shorewall.net/pub/shorewall/3.0/shorewall-3.0.5/errata/">updates</a>.</p>
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<p>The current Development Version is 3.2.0 Beta 2 – Get it from
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the <a href="download.htm">download sites</a>. Here are the <a
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href="http://www1.shorewall.net/pub/shorewall/development/3.2/shorewall-3.2.0-Beta2/releasenotes.txt">release
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notes</a> and here are the <a
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href="http://www1.shorewall.net/pub/shorewall/development/3.2/shorewall-3.2.0-Beta2/known_problems.txt">known
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problems</a> and <a
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href="http://www1.shorewall.net/pub/shorewall/development/3.2/shorewall-3.2.0-Beta2/errata/">updates</a><br>
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<br>
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Copyright
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© 2001-2006 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 href="GnuCopyright.htm" target="_self">GNU Free
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Documentation License</a>”.</p>
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<p>2006-03-23</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="#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="#Proxmox">Proxmox
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Firewall</a><br>
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<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 connection state tracking
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capabilities.<br>
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<br>
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Shorewall is <u>not</u> a daemon. Once Shorewall
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has configured Netfilter, it's job is complete. After that, there is
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no Shorewall code running although the <a
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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
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the available iptables configuration tools but I believe that it is
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the 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
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a minimum of networking knowledge, I would encourage you to check out
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the following alternatives:</p>
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<ul>
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<li>
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<p style="margin-bottom: 0in;"><a href="http://www.m0n0.ch/wall">m0n0wall</a>
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(FreeBSD Based) </p>
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</li>
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<li>
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<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
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for a Linux firewall solution that can handle complex and fast
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changing network 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
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you can do with Shorewall, see the <a href="shorewall_features.htm">Shorewall
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Features page</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? Download the current
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Stable version (see above) then select the <a
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href="shorewall_quickstart_guide.htm">QuickStart
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Guide</a> that most closely matches your environment and follow the
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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 href="Documentation.html">Documentation
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Index</a> is a good place to start as is the Site Search in the frame
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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
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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><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>
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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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<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)"
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align="bottom" border="1" height="34" hspace="4" width="91"></font></a></font>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.</p>
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<hr>
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<h2><a name="Proxmox"></a>Proxmox Firewall</h2>
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<p><font color="#000000"><a href="http://www.proxmox.com/"><font
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color="#000080"><img src="images/Proxmox.png" name="graphics2"
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alt="Proxmox Logo" align="middle" border="1" height="20" hspace="4"
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width="144"></font></a></font>Proxmox
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firewall is based on Shorewall and Debian Sarge. It has an automated
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installer and a GUI.</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"
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height="66" 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"
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border="1" height="108" width="65"></font></a>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>. <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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