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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@672 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
426 lines
16 KiB
HTML
426 lines
16 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 1.2 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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</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;" bordercolor="#111111" width="100%"
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id="AutoNumber1" height="90" bgcolor="#3366ff">
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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 1.2 Errata</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"> <font face="Century Gothic, Arial, Helvetica">
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<b><u>IMPORTANT</u></b></font></p>
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<p align="center"> <b><u>If you use a Windows system to download a
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corrected script, be sure to run the script through <a
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href="http://www.megaloman.com/%7Ehany/software/hd2u/"> dos2unix</a>
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after you have moved it to your Linux system.</u></b></p>
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<p align="center"> <u><b>When the instructions say to install a corrected
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firewall script in /etc/shorewall/firewall, use the 'cp' (or 'scp')
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utility to overwrite the existing file. DO NOT REMOVE OR RENAME THE
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OLD /etc/shorewall/firewall before you do that. /etc/shorewall/firewall
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is a symbolic link that points to the 'shorewall' file used by your
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system initialization scripts to start Shorewall during boot and it
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is that file that must be overwritten with the corrected script. </b></u></p>
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<ul>
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<li>
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<h3 align="left"><font color="#660066"> <a href="errata_1.htm"> Problems
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in Version 1.1</a></font></h3>
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</li>
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<li>
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<h3 align="left"><a href="#V1.2">Problems in Version 1.2</a></h3>
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</li>
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<li>
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<h3 align="left"><font color="#660066"><a href="#iptables"> Problem
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with iptables version 1.2.3</a></font></h3>
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</li>
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<li>
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<h3 align="left"><a href="#Debug">Problems with kernel 2.4.18 and
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RedHat iptables</a></h3>
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</li>
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</ul>
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<hr>
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<h3 align="left"><a name="V1.2"></a>Problems in Version 1.2</h3>
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<h3 align="left">Version 1.2.13</h3>
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<ul>
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<li>
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<p align="left">Some users have reported problems installing the RPM
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on SuSE 7.3 where rpm reports a conflict with kernel <= 2.2 even
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though a 2.4 kernel RPM is installed. To get around this problem,
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use the --nodeps option to rpm (e.g., "rpm -ivh --nodeps
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shorewall-1.2-13.noarch.rpm").<br>
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<br>
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The problem stems from the fact that SuSE does not include
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a package named "kernel" but rather has a number of packages that
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provide the virtual package "kernel". Since virtual packages have
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no version associated with them, a conflict results. Since the
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workaround is simple, I don't intend to change the Shorewall package.</p>
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</li>
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<li>
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<p align="left">Shorewall accepts invalid rules of the form:<br>
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<br>
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<font face="Courier">ACCEPT <src> <dest>:<ip addr>
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all <port number> - <original ip address><br>
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<br>
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</font>The <port number> is ignored with the result that
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<u>all</u> connection requests from the <src> zone whose
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original destination IP address matches the last column are forwarded
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to the <dest> zone, IP address <ip addr>.<2E>
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<a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.13/firewall">
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This corrected firewall script</a> correctly generates an error when
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such a rule is encountered.</p>
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</li>
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</ul>
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<h3 align="left">Version 1.2.11</h3>
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<ul>
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<li>
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<p align="left">The 'try' command is broken. </p>
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</li>
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<li>
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<p align="left">The usage text printed by the shorewall utility
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doesn't show the optional timeout for the 'try' command. </p>
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</li>
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</ul>
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<p align="left">Both problems are corrected by <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.11/shorewall">
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this new version of /sbin/shorewall</a>.</p>
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<h3 align="left">Sample Configurations:</h3>
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<ul>
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<li>
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<p align="left">There have been several problems with SSH, DNS and
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ping in the two- and three-interface examples. Before reporting
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problems with these services, please verify that you have the latest
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version of the appropriate sample 'rules' file. </p>
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</li>
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</ul>
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<h3 align="left">All Versions through 1.2.10</h3>
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<ul>
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<li>
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<p align="left">The <a href="PPTP.htm#ServerFW">documentation for
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running PoPToP on the firewall system</a> contained an incorrect entry
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in the /etc/shorewall/hosts file. The corrected entry (underlined)
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is shown here: </p>
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</li>
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</ul>
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<blockquote>
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<blockquote>
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<table border="2">
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<tbody>
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<tr>
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<td><b>ZONE</b></td>
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<td><b>HOST(S)</b></td>
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<td><b>OPTIONS</b></td>
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</tr>
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<tr>
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<td>loc</td>
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<td><u>eth2</u>:192.168.1.0/24</td>
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<td>routestopped</td>
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</tr>
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<tr>
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<td>loc</td>
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<td>ppp+:192.168.1.0/24</td>
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<td><EFBFBD></td>
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</tr>
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</tbody>
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</table>
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</blockquote>
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</blockquote>
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<h3 align="left">All Versions through 1.2.8</h3>
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<ul>
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<li>
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<p align="left">The shorewall.conf file and the documentation
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incorrectly refer to a parameter in /etc/shorewall/shorewall.conf
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called LOCKFILE; the correct name for the parameter is SUBSYSLOCK (<a
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href="Documentation.htm#Conf">see the corrected online documentation</a>).
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Users of the rpm should change the name (and possibly the value)
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of this parameter so that Shorewall interacts properly with the
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SysV init scripts. The documentation on this web site has been
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corrected and <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.8/shorewall.conf">
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here's a corrected version of shorewall.conf</a>.</p>
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</li>
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<li>
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<p align="left">The documentation indicates that a comma-separated
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list of IP/subnet addresses may appear in an entry in the hosts file.
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This is not the case; if you want to specify multiple addresses
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for a zone, you need to have a separate entry for each address.</p>
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</li>
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</ul>
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<h3 align="left">Version 1.2.7</h3>
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<p align="left">Version 1.2.7 is quite broken -- please install 1.2.8</p>
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<p>If you have installed and started version 1.2.7 then before trying
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to restart under 1.2.8:</p>
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<ol>
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<li>Look at your /etc/shorewall/shorewall.conf file and note the directory
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named in the STATEDIR variable. If that variable is empty, assume /var/state/shorewall.</li>
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<li>Remove the file 'lock' in the directory determined in step 1.</li>
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</ol>
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<p>You may now restart using 1.2.8.</p>
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<h3 align="left">Version 1.2.6</h3>
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<ul>
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<li>
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<p align="left">GRE and IPIP tunnels are broken. </p>
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</li>
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<li>
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<p align="left">The following rule results in a start error:<br>
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<br>
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<20><><EFBFBD> ACCEPT<50><54><EFBFBD> z1<7A><31><EFBFBD> z2<7A><32><EFBFBD> icmp </p>
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</li>
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</ul>
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<p align="left">To correct the above problems, install <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.6/firewall">this
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corrected firewall script</a> in<69> /etc/shorewall/firewall..</p>
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<h3 align="left">Version 1.2.5</h3>
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<ul>
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<li>
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<p align="left">The new ADDRESS column in /etc/shorewall/masq cannot
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contain a $-variable name. </p>
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</li>
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<li>
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<p align="left">Errors result if $FW appears in the /etc/shorewall/policy
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file. </p>
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</li>
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<li>
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<p align="left">Using Blacklisting without setting BLACKLIST_LOGLEVEL
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results in an error at start time. </p>
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</li>
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</ul>
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<p align="left">To correct the above problems, install <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.5/firewall">this
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corrected firewall script</a> in /etc/shorewall/firewall.</p>
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<p align="left"><EFBFBD></p>
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<ul>
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<li>
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<p align="left">The /sbin/shorewall script produces error messages
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saying that 'mygrep' cannot be found. <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.5/shorewall">
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Here is the correct version of /sbin/shorewall.</a> </p>
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</li>
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</ul>
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<h3 align="left">Version 1.2.4</h3>
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<ul>
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<li>
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<p align="left">This version will not install "out of the box" without
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modification. Before attempting to start the firewall, please change
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the STATEDIR in /etc/shorewall/shorewall.conf to refer to /var/lib/shorewall.
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This only applies to fresh installations -- if you are upgrading from
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a previous version of Shorewall, version 1.2.4 will work without modification.
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</p>
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</li>
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</ul>
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<h3 align="left">Version 1.2.3</h3>
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<ul>
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<li>
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<p align="left">When BLACKLIST_LOGLEVEL is set, packets from blacklisted
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hosts aren't logged. Install <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.3/firewall">this
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corrected firewall script</a> in /etc/shorewall/firewall. </p>
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</li>
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</ul>
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<blockquote>
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<p>Alternatively, edit /etc/shorewall/firewall and change line 1564 from:</p>
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</blockquote>
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<pre> run_iptables -A blacklst -d $addr -j LOG $LOGPARAMS --log-prefix \</pre>
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<blockquote>
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<p>to</p>
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</blockquote>
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<pre> run_iptables -A blacklst -s $addr -j LOG $LOGPARAMS --log-prefix \</pre>
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<h3 align="left">Version 1.2.2</h3>
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<ul>
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<li>The "shorewall status" command hangs after it displays
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the chain information. <a href="pub/shorewall/errata/1.2.2/shorewall">Here's
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a corrected /sbin/shorewall.</a> if<69> you want to simply modify
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your copy of /sbin/shorewall, then at line 445 change this:</li>
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</ul>
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<div align="left">
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<pre align="Left"> status)<br> clear</pre>
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</div>
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<blockquote>
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<p align="left">to this:</p>
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</blockquote>
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<div align="left">
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<pre align="Left"> status)<br> get_config<br> clear</pre>
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</div>
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<ul>
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<li>The "shorewall monitor" command doesn't show the icmpdef chain
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- <a href="pub/shorewall/errata/1.2.2/shorewall">this corrected /sbin/shorewall</a>
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fixes that problem as well as the status problem described above.</li>
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</ul>
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<ul>
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<li>In all 1.2.x versions, the 'CLIENT PORT(S)' column in /etc/shorewall/tcrules
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is ignored. This is corrected in <a
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href="/pub/shorewall/errata/1.2.2/firewall">this updated firewall script</a>.<2E>
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Place the script in /etc/shorewall/firewall. Thanks to Shingo Takeda for
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spotting this bug.</li>
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</ul>
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<h3 align="left">Version 1.2.1</h3>
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<ul>
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<li>The new <i>logunclean </i>interface option is not described
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in the help text in /etc/shorewall/interfaces. An <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/1.2.1/interfaces">updated
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interfaces file</a> is available.</li>
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<li>When REJECT is specified in a TCP rule, Shorewall correctly
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replies with a TCP RST packet. Previous versions of the firewall
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script are broken in the case of a REJECT policy, however; in REJECT
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policy chains, all requests are currently replied to with an ICMP
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port-unreachable packet. <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.2.1/firewall">This
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corrected firewall script</a> replies to TCP requests with TCP
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RST in REJECT policy chains. Place the script in /etc/shorewall/firewall.</li>
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</ul>
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<h3 align="left">Version 1.2.0</h3>
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<blockquote>
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<p align="left"><b>Note: </b>If you are upgrading from one of the Beta
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RPMs to 1.2.0, you must use the "--oldpackage" option to rpm
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(e.g., rpm -Uvh --oldpackage shorewall-1.2-0.noarch.rpm).</p>
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<p align="left">The tunnel script released in version 1.2.0 contained
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errors -- a <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/1.2.0/tunnel">corrected
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script</a> is available.</p>
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</blockquote>
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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, RedHat released
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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 also built
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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 <b><u>before</u>
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</b>you upgrade to RedHat 7.2.</p>
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<p align="left"><font face="Century Gothic, Arial, Helvetica"
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color="#ff6633"><b>Update 11/9/2001: </b></font>RedHat has released
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an iptables-1.2.4 RPM of their own which you can download from<font
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face="Century Gothic, Arial, Helvetica" 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 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 specification
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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 kernel 2.4.18
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and 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
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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 installing
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<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 version of
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iptables, you will need to specify the --oldpackage option to rpm (e.g.,
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"iptables -Uvh --oldpackage iptables-1.2.5-1.i386.rpm").</p>
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</blockquote>
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<p><font face="Century Gothic, Arial, Helvetica"><font size="2"> Last updated
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5/24/2002 - </font><font size="2"> <a
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href="support.htm">Tom Eastep</a></font> </font></p>
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<p><font face="Trebuchet MS"><a href="copyright.htm"><font size="2">Copyright</font>
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<20> <font size="2">2001, 2002 Thomas M. Eastep.</font></a></font></p>
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<br>
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</body>
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</html>
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