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shorewall_code/Shorewall-docs/sourceforge_index.htm
teastep 07f66da156 More 1.4.0 Updates 
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Shoreline Firewall (Shorewall) 1.4</title>
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<meta name="author" content="Tom Eastep">
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<h1 align="center"> <font size="4"><i> <a
href="http://www.cityofshoreline.com"> <img vspace="4" hspace="4"
alt="Shorwall Logo" height="70" width="85" align="left"
src="images/washington.jpg" border="0">
</a></i></font><font
color="#ffffff">Shorewall 1.4 - <font size="4">"<i>iptables
made easy"</i></font></font><a
href="http://www.sf.net"> </a></h1>
<div align="center"><a href="/1.3/index.html" target="_top"><font
color="#ffffff">Shorewall 1.3 Site here</font></a></div>
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<h2 align="left">What is it?</h2>
<p>The Shoreline Firewall, more commonly known as<61> "Shorewall", is
a <a href="http://www.netfilter.org">Netfilter</a> (iptables)
based firewall that can be used on a dedicated firewall system,
a multi-function gateway/router/server or on a standalone
GNU/Linux system.</p>
<p>This program is free software; you can redistribute it and/or modify
it under the
terms of <a href="http://www.gnu.org/licenses/gpl.html">Version
2 of the GNU General Public License</a> as published by the Free
Software Foundation.<br>
<br>
This program is distributed
in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License
for more details.<br>
<br>
You should have received
a copy of the GNU General Public License
along with this program; if not, write
to the Free Software Foundation, Inc., 675
Mass Ave, Cambridge, MA 02139, USA</p>
<p><a href="copyright.htm">Copyright 2001, 2002, 2003 Thomas M. Eastep</a></p>
<p> <a href="http://leaf.sourceforge.net" target="_top"><img
border="0" src="images/leaflogo.gif" width="49" height="36">
</a>Jacques Nilo
and Eric Wolzak have a LEAF (router/firewall/gateway
on a floppy, CD or compact flash) distribution
called <i>Bering</i> that features
Shorewall-1.3.14 and Kernel-2.4.20. You can find
their work at: <a
href="http://leaf.sourceforge.net/devel/jnilo"> http://leaf.sourceforge.net/devel/jnilo</a></p>
<b>
</b>
<b>Congratulations to Jacques and
Eric on the recent release of Bering 1.1!!!</b><br>
<h2>News</h2>
<p><b>3/14/2003 - Shorewall 1.4.0</b><b> </b><b><img
border="0" src="images/new10.gif" width="28" height="12" alt="(New)">
</b></p>
Shorewall 1.4 represents
the next step in the evolution of Shorewall. The main thrust of the initial
release is simply to remove the cruft that has accumulated in Shorewall
over time. <br>
<br>
<b>IMPORTANT: Shorewall 1.4.0 requires</b> <b>the iproute package
('ip' utility).</b><br>
<br>
Function from 1.3 that has been omitted from this version include:<br>
<ol>
<li>The MERGE_HOSTS variable in shorewall.conf is
no longer supported. Shorewall 1.4 behavior is the same as 1.3 with MERGE_HOSTS=Yes.<br>
<br>
</li>
<li>Interface names of the form &lt;device&gt;:&lt;integer&gt;
in /etc/shorewall/interfaces now generate an error.<br>
<br>
</li>
<li>Shorewall 1.4 implements behavior consistent with OLD_PING_HANDLING=No.
OLD_PING_HANDLING=Yes will generate an error at startup as will specification
of the 'noping' or 'filterping' interface options.<br>
<br>
</li>
<li>The 'routestopped' option in the /etc/shorewall/interfaces
and /etc/shorewall/hosts files is no longer supported and will generate
an error at startup if specified.<br>
<br>
</li>
<li>The Shorewall 1.2 syntax for DNAT and REDIRECT rules is
no longer accepted.<br>
<br>
</li>
<li>The ALLOWRELATED variable in shorewall.conf is no longer
supported. Shorewall 1.4 behavior is the same as 1.3 with ALLOWRELATED=Yes.<br>
<br>
</li>
<li>The icmp.def file has been removed.<br>
<br>
</li>
<li value="8">The 'multi' interface option is no longer supported.
<20>Shorewall will generate rules for sending packets back out the same interface
that they arrived on in two cases:</li>
</ol>
<ul>
<li>There is an <u>explicit</u> policy for the source zone to
or from the destination zone. An explicit policy names both zones and does
not use the 'all' reserved word.</li>
<li>There are one or more rules for traffic for the source zone
to or from the destination zone including rules that use the 'all' reserved
word. Exception: if the source zone and destination zone are the same then
the rule must be explicit - it must name the zone in both the SOURCE and
DESTINATION columns.</li>
</ul>
<ul>
</ul>
Changes for 1.4 include:<br>
<ol>
<li>The /etc/shorewall/shorewall.conf file has been completely
reorganized into logical sections.<br>
<br>
</li>
<li>LOG and CONTINUE are now a valid actions for a rule (/etc/shorewall/rules).<br>
<br>
</li>
<li>The firewall script and version file are now installed
in /usr/share/shorewall.<br>
<br>
</li>
<li>Late arriving DNS replies are now silently dropped in
the common chain by default.<br>
<br>
</li>
<li>In addition to behaving like OLD_PING_HANDLING=No, Shorewall
1.4 no longer unconditionally accepts outbound ICMP packets. So if you want
to 'ping' from the firewall, you will need the appropriate rule or policy.<br>
<br>
</li>
<li>CONTINUE is now a valid action for a rule (/etc/shorewall/rules).<br>
<br>
</li>
<li>802.11b devices with names of the form wlan<i>&lt;n&gt;</i>
now support the 'maclist' option.<br>
<br>
</li>
<li value="8">Explicit Congestion Notification (ECN - RFC 3168) may
now be turned off on a host or network basis using the new /etc/shorewall/ecn
file. To use this facility:<br>
<br>
<20><> a) You must be running kernel 2.4.20<br>
<20><> b) You must have applied the patch in<br>
<20><> http://www.shorewall/net/pub/shorewall/ecn/patch.<br>
<20><> c) You must have iptables 1.2.7a installed.<br>
<br>
</li>
<li>The /etc/shorewall/params file is now processed first so that
variables may be used in the /etc/shorewall/shorewall.conf file.</li>
</ol>
<p></p>
<b> </b>
<ul>
</ul>
<p><a href="News.htm">More News</a></p>
<h2> </h2>
<h1 align="center"><a href="http://www.sf.net"><img align="left"
alt="SourceForge Logo"
src="http://sourceforge.net/sflogo.php?group_id=22587&amp;type=3">
</a></h1>
<h4> </h4>
<h2>This site is hosted by the generous folks at <a
href="http://www.sf.net">SourceForge.net</a> </h2>
<h2><a name="Donations"></a>Donations</h2>
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style="margin-top: 1px;">
<p align="center"><a href="http://www.starlight.org"> <img
border="4" src="images/newlog.gif" width="57" height="100" align="left"
hspace="10">
</a></p>
<p align="center"><font size="4" color="#ffffff">Shorewall is free
but if you try it and find it useful, please consider making a donation
to <a
href="http://www.starlight.org"><font color="#ffffff">Starlight
Children's Foundation.</font></a> Thanks!</font></p>
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<p><font size="2">Updated 3/5/2003 - <a href="support.htm">Tom Eastep</a></font>
<br>
</p>
<br>
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</html>
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