forked from extern/shorewall_code
16906234c8
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@535 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
257 lines
12 KiB
HTML
257 lines
12 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type"
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content="text/html; charset=windows-1252">
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<title>Shorewall 1.4 Errata</title>
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<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
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<meta name="ProgId" content="FrontPage.Editor.Document">
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<meta name="Microsoft Theme" content="none">
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<meta name="author" content="Tom Eastep">
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0"
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style="border-collapse: collapse;" width="100%" id="AutoNumber1"
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bgcolor="#400169" height="90">
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<tbody>
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<tr>
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<td width="100%">
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<h1 align="center"><font color="#ffffff">Shorewall Errata/Upgrade Issues</font></h1>
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</td>
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</tr>
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</tbody>
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</table>
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<p align="center"> <b><u>IMPORTANT</u></b></p>
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<ol>
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<li>
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<p align="left"> <b><u>I</u>f you use a Windows system to download
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a corrected script, be sure to run the script through <u>
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<a href="http://www.megaloman.com/%7Ehany/software/hd2u/"
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style="text-decoration: none;"> dos2unix</a></u> after you have moved
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it to your Linux system.</b></p>
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</li>
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<li>
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<p align="left"> <b>If you are installing Shorewall for the first
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time and plan to use the .tgz and install.sh script, you can untar
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the archive, replace the 'firewall' script in the untarred directory
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with the one you downloaded below, and then run install.sh.</b></p>
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</li>
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<li>
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<p align="left"> <b>When the instructions say to install a corrected
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firewall script in /usr/share/shorewall/firewall, you may
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rename the existing file before copying in the new file.</b></p>
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</li>
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<li>
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<p align="left"><b><font color="#ff0000">DO NOT INSTALL CORRECTED COMPONENTS
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ON A RELEASE EARLIER THAN THE ONE THAT THEY ARE LISTED UNDER BELOW.
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For example, do NOT install the 1.3.9a firewall script if you are running
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1.3.7c.</font></b><br>
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</p>
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</li>
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</ol>
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<ul>
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<li><b><a href="upgrade_issues.htm">Upgrade Issues</a></b></li>
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<li><b><a href="#V1.4">Problems in Version 1.4</a></b><br>
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</li>
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<li> <b><a
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href="errata_3.html">Problems in Version 1.3</a></b></li>
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<li> <b><a
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href="errata_2.htm">Problems in Version 1.2</a></b></li>
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<li> <b><font
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color="#660066"> <a href="errata_1.htm">Problems in Version 1.1</a></font></b></li>
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<li> <b><font
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color="#660066"><a href="#iptables"> Problem with iptables version 1.2.3
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on RH7.2</a></font></b></li>
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<li> <b><a
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href="#Debug">Problems with kernels >= 2.4.18 and RedHat
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iptables</a></b></li>
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<li><b><a href="#SuSE">Problems installing/upgrading
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RPM on SuSE</a></b></li>
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<li><b><a href="#Multiport">Problems with iptables
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version 1.2.7 and MULTIPORT=Yes</a></b></li>
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<li><b><a href="#NAT">Problems with RH Kernel 2.4.18-10
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and NAT</a></b><br>
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</li>
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</ul>
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<hr>
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<h2 align="left"><a name="V1.4"></a>Problems in Version 1.4</h2>
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<h3></h3>
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<h3>1.4.1a, 1.4.1 and 1.4.0</h3>
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<ul>
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<li>Some TCP requests are rejected in the 'common' chain with an ICMP port-unreachable
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response rather than the more appropriate TCP RST response. This problem
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is corrected in this updated common.def file which may be installed in /etc/shorewall/common.def.<br>
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</li>
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</ul>
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<h3>1.4.1</h3>
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<ul>
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<li>When a "shorewall check" command is executed, each "rule" produces
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the harmless additional message:<br>
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<br>
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<20> <20> <20>/usr/share/shorewall/firewall: line 2174: [: =: unary operator expected<br>
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<br>
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You may correct the problem by installing <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/1.4.1/firewall"
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target="_top">this corrected script</a> in /usr/share/shorewall/firewall
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as described above.<br>
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</li>
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</ul>
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<h3>1.4.0</h3>
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<ul>
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<li>When running under certain shells Shorewall will attempt to create
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ECN rules even when /etc/shorewall/ecn is empty. You may either just remove
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/etc/shorewall/ecn or you can install <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.4.0/firewall">this
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correct script</a> in /usr/share/shorewall/firewall as described above.<br>
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</li>
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</ul>
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<hr width="100%" size="2">
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<h2 align="left"><a name="Upgrade"></a>Upgrade Issues</h2>
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<p align="left">The upgrade issues have moved to <a
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href="upgrade_issues.htm">a separate page</a>.</p>
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<hr>
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<h3 align="left"><a name="iptables"></a><font color="#660066"> Problem with
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iptables version 1.2.3</font></h3>
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<blockquote>
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<p align="left">There are a couple of serious bugs in iptables 1.2.3 that
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prevent it from working with Shorewall. Regrettably,
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RedHat released this buggy iptables in RedHat 7.2.<2E></p>
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<p align="left"> I have built a <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3-3.i386.rpm">
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corrected 1.2.3 rpm which you can download here</a><EFBFBD> and I have
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also built an <a
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href="ftp://ftp.shorewall.net/pub/shorewall/iptables-1.2.4-1.i386.rpm">
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iptables-1.2.4 rpm which you can download here</a>. If you are currently
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running RedHat 7.1, you can install either of these RPMs
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<b><u>before</u> </b>you upgrade to RedHat 7.2.</p>
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<p align="left"><font color="#ff6633"><b>Update 11/9/2001: </b></font>RedHat
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has released an iptables-1.2.4 RPM of their own which you can
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download from<font color="#ff6633"> <a
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href="http://www.redhat.com/support/errata/RHSA-2001-144.html">http://www.redhat.com/support/errata/RHSA-2001-144.html</a>.
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</font>I have installed this RPM on my firewall and it works
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fine.</p>
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<p align="left">If you would like to patch iptables 1.2.3 yourself,
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the patches are available for download. This <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3/loglevel.patch">patch</a>
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which corrects a problem with parsing of the --log-level
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specification while this <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3/tos.patch">patch</a>
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corrects a problem in handling the<68> TOS target.</p>
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<p align="left">To install one of the above patches:</p>
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<ul>
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<li>cd iptables-1.2.3/extensions</li>
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<li>patch -p0 < <i>the-patch-file</i></li>
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</ul>
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</blockquote>
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<h3><a name="Debug"></a>Problems with kernels >= 2.4.18 and
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RedHat iptables</h3>
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<blockquote>
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<p>Users who use RedHat iptables RPMs and who upgrade to kernel 2.4.18/19
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may experience the following:</p>
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<blockquote>
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<pre># shorewall start<br>Processing /etc/shorewall/shorewall.conf ...<br>Processing /etc/shorewall/params ...<br>Starting Shorewall...<br>Loading Modules...<br>Initializing...<br>Determining Zones...<br>Zones: net<br>Validating interfaces file...<br>Validating hosts file...<br>Determining Hosts in Zones...<br>Net Zone: eth0:0.0.0.0/0<br>iptables: libiptc/libip4tc.c:380: do_check: Assertion<br>`h->info.valid_hooks == (1 << 0 | 1 << 3)' failed.<br>Aborted (core dumped)<br>iptables: libiptc/libip4tc.c:380: do_check: Assertion<br>`h->info.valid_hooks == (1 << 0 | 1 << 3)' failed.<br>Aborted (core dumped)<br></pre>
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</blockquote>
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<p>The RedHat iptables RPM is compiled with debugging enabled but the
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user-space debugging code was not updated to reflect recent changes in
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the Netfilter 'mangle' table. You can correct the problem by
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installing <a
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href="http://www.shorewall.net/pub/shorewall/iptables-1.2.5-1.i386.rpm">
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this iptables RPM</a>. If you are already running a 1.2.5
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version of iptables, you will need to specify the --oldpackage
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option to rpm (e.g., "iptables -Uvh --oldpackage iptables-1.2.5-1.i386.rpm").</p>
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</blockquote>
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<h3><a name="SuSE"></a>Problems installing/upgrading
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RPM on SuSE</h3>
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<p>If you find that rpm complains about a conflict with kernel <=
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2.2 yet you have a 2.4 kernel installed, simply use the "--nodeps"
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option to rpm.</p>
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<p>Installing: rpm -ivh --nodeps <i><shorewall rpm></i></p>
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<p>Upgrading: rpm -Uvh --nodeps <i><shorewall rpm></i></p>
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<h3><a name="Multiport"></a><b>Problems with iptables version 1.2.7 and
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MULTIPORT=Yes</b></h3>
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<p>The iptables 1.2.7 release of iptables has made an incompatible
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change to the syntax used to specify multiport match rules; as
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a consequence, if you install iptables 1.2.7 you must be
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running Shorewall 1.3.7a or later or:</p>
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<ul>
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<li>set MULTIPORT=No
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in /etc/shorewall/shorewall.conf; or
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</li>
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<li>if you are running
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Shorewall 1.3.6 you may install
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<a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.6/firewall">
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this firewall script</a> in /var/lib/shorewall/firewall
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as described above.</li>
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</ul>
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<h3><a name="NAT"></a>Problems with RH Kernel 2.4.18-10 and NAT<br>
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</h3>
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/etc/shorewall/nat entries of the following form will
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result in Shorewall being unable to start:<br>
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<br>
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<pre>#EXTERNAL<41><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD> INTERFACE<43><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD> INTERNAL<41><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ALL INTERFACES<45><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> LOCAL<br>192.0.2.22<EFBFBD><EFBFBD><EFBFBD> eth0<68><30><EFBFBD> 192.168.9.22<EFBFBD><EFBFBD> yes<65><73><EFBFBD><EFBFBD> yes<br>#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</pre>
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Error message is:<br>
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<pre>Setting up NAT...<br>iptables: Invalid argument<br>Terminated<br><br></pre>
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The solution is to put "no" in the LOCAL column. Kernel
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support for LOCAL=yes has never worked properly and 2.4.18-10 has
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disabled it. The 2.4.19 kernel contains corrected support under a
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new kernel configuraiton option; see <a href="Documentation.htm#NAT">http://www.shorewall.net/Documentation.htm#NAT</a><br>
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<p><font size="2"> Last updated 3/25/2003 - <a href="support.htm">Tom Eastep</a></font>
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</p>
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<p><a href="copyright.htm"><font size="2">Copyright</font> <20> <font
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size="2">2001, 2002, 2003 Thomas M. Eastep.</font></a><br>
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</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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