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<title>Shorewall Prerequisites</title>
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<td width="100%">
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<h1 align="center"><font color="#ffffff">Shorewall Requirements</font></h1>
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</table>
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<br>
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Shorewall Requires:<br>
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<ul>
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<li>A kernel that supports netfilter. I've tested with 2.4.2 - 2.4.20-pre6.
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<a href="kernel.htm"> Check here for kernel configuration information.</a>
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If you are looking for a firewall for use with 2.2 kernels, <a
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href="http://seawall.sf.net"> see the Seattle Firewall site</a>
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.</li>
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<li>iptables 1.2 or later but beware version 1.2.3 -- see the <a
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href="errata.htm">Errata</a>. <font color="#ff0000"><b>WARNING: </b></font>The
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buggy iptables version 1.2.3 is included in RedHat 7.2 and you should
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upgrade to iptables 1.2.4 prior to installing Shorewall. Version 1.2.4
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is available <a
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href="http://www.redhat.com/support/errata/RHSA-2001-144.html">from RedHat</a>
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and in the <a href="errata.htm">Shorewall Errata</a>. </li>
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<li>Iproute ("ip" utility). The iproute package is included with
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most distributions but may not be installed by default. The official
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download site is <a href="ftp://ftp.inr.ac.ru/ip-routing"
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target="_blank"> <font face="Century Gothic, Arial, Helvetica">f</font>tp://ftp.inr.ac.ru/ip-routing</a>.
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</li>
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<li>A Bourne shell or derivative such as bash or ash. This shell must
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have correct support for variable expansion formats ${<i>variable</i>%<i>pattern</i>
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}, ${<i>variable</i>%%<i>pattern</i>}, ${<i>variable</i>#<i>pattern</i>
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} and ${<i>variable</i>##<i>pattern</i>}.</li>
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<li>The firewall monitoring display is greatly improved if you have
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awk (gawk) installed.</li>
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</ul>
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<p align="left"><font size="2">Last updated 2/21/2003 - <a
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href="support.htm">Tom Eastep</a></font></p>
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<p align="left"><font face="Trebuchet MS"><a href="copyright.htm"> <font
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size="2">Copyright</font> <20> <font size="2">2001, 2002, 2003 Thomas M. Eastep.</font></a></font></p>
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<br>
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<br>
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<br>
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<br>
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</body>
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</html>
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