shorewall_code/Shorewall-docs/shorewall_prerequisites.htm
teastep 329bddd120 Changes for 1.3.8
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<title>Shorewall Prerequisites</title>
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<h1 align="center"><font color="#FFFFFF">Shorewall Requirements</font></h1>
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<ul>
<li>A kernel that supports netfilter. I've tested with 2.4.2 - 2.4.20-pre2. <a href="kernel.htm">
Check here for kernel configuration information.</a>
If you are looking for a firewall for use with 2.2 kernels, <a href="http://www.shorewall.net/seawall">
see the Seattle Firewall site</a>
.</li>
<li>iptables 1.2 or later but beware version 1.2.3 -- see the <a href="errata.htm">Errata</a>.
<font color="#FF0000"><b>WARNING: </b></font>The buggy iptables version 1.2.3
is included in RedHat 7.2 and you should upgrade to iptables 1.2.4 prior to
installing Shorewall. Version 1.2.4 is available
<a href="http://www.redhat.com/support/errata/RHSA-2001-144.html">from RedHat</a>
and in the <a href="errata.htm">Shorewall Errata</a>. If you are going to be
running kernel 2.4.18 or later, NO currently-available RedHat iptables RPM
will work -- again, see the <a href="errata.htm">Shorewall Errata</a>. </li>
<li>Some features require iproute ("ip" utility). The iproute package is
included with most distributions but may not be installed by default. The
official download site is <a href="ftp://ftp.inr.ac.ru/ip-routing" target="_blank">
<font face="Century Gothic, Arial, Helvetica">f</font>tp://ftp.inr.ac.ru/ip-routing</a>.
</li>
<li>A Bourne shell or derivative such as bash or ash. Must have correct
support for variable expansion formats ${<i>variable</i>%<i>pattern</i>
}, ${<i>variable</i>%%<i>pattern</i>}, ${<i>variable</i>#<i>pattern</i>
} and ${<i>variable</i>##<i>pattern</i>}.</li>
<li>The firewall monitoring display is greatly improved if you have awk
(gawk) installed.</li>
</ul>
<p align="left"><font size="2">Last updated 8/24/2002 - <a href="support.htm">Tom
Eastep</a></font></p>
<p align="left"><font face="Trebuchet MS"><a href="copyright.htm">
<font size="2">Copyright</font> <20> <font size="2">2001, 2002 Thomas M. Eastep.</font></a></font></p>
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