forked from extern/shorewall_code
10b51d1991
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@438 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
456 lines
28 KiB
HTML
456 lines
28 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
<html>
|
||
<head>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<meta http-equiv="Content-Type"
|
||
content="text/html; charset=windows-1252">
|
||
<title>Shoreline Firewall (Shorewall) 1.3</title>
|
||
|
||
|
||
|
||
|
||
|
||
<base target="_self">
|
||
</head>
|
||
<body>
|
||
|
||
|
||
|
||
|
||
<table border="0" cellpadding="0" cellspacing="4"
|
||
style="border-collapse: collapse;" width="100%" id="AutoNumber3"
|
||
bgcolor="#4b017c">
|
||
|
||
<tbody>
|
||
|
||
<tr>
|
||
|
||
<td width="100%" height="90">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<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
|
||
1.3 - <font size="4">"<i>iptables
|
||
made easy"</i></font></font><a href="http://www.sf.net">
|
||
</a></h1>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<div align="center"><a href="/1.2/index.html" target="_top"><font
|
||
color="#ffffff">Shorewall 1.2 Site here</font></a></div>
|
||
</td>
|
||
</tr>
|
||
|
||
|
||
|
||
|
||
</tbody>
|
||
|
||
</table>
|
||
|
||
|
||
|
||
|
||
<div align="center">
|
||
|
||
<center>
|
||
|
||
<table border="0" cellpadding="0" cellspacing="0"
|
||
style="border-collapse: collapse;" width="100%" id="AutoNumber4">
|
||
|
||
<tbody>
|
||
|
||
<tr>
|
||
|
||
<td width="90%">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<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-1.3.10
|
||
and Kernel-2.4.18. You can find their work at:
|
||
<a href="http://leaf.sourceforge.net/devel/jnilo"> http://leaf.sourceforge.net/devel/jnilo</a></p>
|
||
<b>Congratulations to Jacques and
|
||
Eric on the recent release of Bering 1.0 Final!!! <br>
|
||
</b>
|
||
|
||
|
||
|
||
|
||
<h2>News</h2>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<p><b>2/8/2003 - Shoreawll 1.3.14</b><b> </b><b><img
|
||
border="0" src="images/new10.gif" width="28" height="12" alt="(New)">
|
||
</b></p>
|
||
|
||
<p>New features include</p>
|
||
|
||
<ol>
|
||
<li>An OLD_PING_HANDLING option has been added to shorewall.conf.
|
||
When set to Yes, Shorewall ping handling is as it has always been (see
|
||
http://www.shorewall.net/ping.html).<br>
|
||
<br>
|
||
When OLD_PING_HANDLING=No, icmp echo (ping) is handled via rules and
|
||
policies just like any other connection request. The FORWARDPING=Yes option
|
||
in shorewall.conf and the 'noping' and 'filterping' options in /etc/shorewall/interfaces
|
||
will all generate an error.<br>
|
||
<br>
|
||
</li>
|
||
<li>It is now possible to direct Shorewall to create a "label" such
|
||
as<61> "eth0:0" for IP addresses that it creates under ADD_IP_ALIASES=Yes
|
||
and ADD_SNAT_ALIASES=Yes. This is done by specifying the label instead
|
||
of just the interface name:<br>
|
||
<20><br>
|
||
<20><> a) In the INTERFACE column of /etc/shorewall/masq<br>
|
||
<20><> b) In the INTERFACE column of /etc/shorewall/nat<br>
|
||
<20></li>
|
||
<li>Support for OpenVPN Tunnels.<br>
|
||
<br>
|
||
</li>
|
||
<li>Support for VLAN devices with names of the form $DEV.$VID (e.g.,
|
||
eth0.0)<br>
|
||
<br>
|
||
</li>
|
||
<li>When an interface name is entered in the SUBNET column of the
|
||
/etc/shorewall/masq file, Shorewall previously masqueraded traffic from
|
||
only the first subnet defined on that interface. It did not masquerade
|
||
traffic from:<br>
|
||
<20><br>
|
||
<20><> a) The subnets associated with other addresses on the interface.<br>
|
||
<20><> b) Subnets accessed through local routers.<br>
|
||
<20><br>
|
||
Beginning with Shorewall 1.3.14, if you enter an interface name in the
|
||
SUBNET column, shorewall will use the firewall's routing table to construct
|
||
the masquerading/SNAT rules.<br>
|
||
<20><br>
|
||
Example 1 -- This is how it works in 1.3.14.<br>
|
||
<20><> <br>
|
||
|
||
<pre><EFBFBD><EFBFBD> [root@gateway test]# cat /etc/shorewall/masq<br> #INTERFACE<43><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SUBNET<45><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ADDRESS<br> eth0<68><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> eth2<68><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 206.124.146.176<br> #LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</pre>
|
||
|
||
<pre><EFBFBD> [root@gateway test]# ip route show dev eth2<br> 192.168.1.0/24<32> scope link<br> 192.168.10.0/24<32> proto kernel<65> scope link<6E> src 192.168.10.254<br></pre>
|
||
|
||
<pre><EFBFBD> [root@gateway test]# shorewall start<br> ...<br> Masqueraded Subnets and Hosts:<br> To 0.0.0.0/0 from 192.168.1.0/24 through eth0 using 206.124.146.176<br> To 0.0.0.0/0 from 192.168.10.0/24 through eth0 using 206.124.146.176<br> Processing /etc/shorewall/tos...</pre>
|
||
<20><br>
|
||
When upgrading to Shorewall 1.3.14, if you have multiple local subnets
|
||
connected to an interface that is specified in the SUBNET column of an /etc/shorewall/masq
|
||
entry, your /etc/shorewall/masq file will need changing. In most cases,
|
||
you will simply be able to remove redundant entries. In some cases though,
|
||
you might want to change from using the interface name to listing specific
|
||
subnetworks if the change described above will cause masquerading to occur
|
||
on subnetworks that you don't wish to masquerade.<br>
|
||
<20><br>
|
||
Example 2 -- Suppose that your current config is as follows:<br>
|
||
<20><> <br>
|
||
|
||
<pre><EFBFBD><EFBFBD> [root@gateway test]# cat /etc/shorewall/masq<br> #INTERFACE<43><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SUBNET<45><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ADDRESS<br> eth0<68><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> eth2<68><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 206.124.146.176<br> eth0<68><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 192.168.10.0/24<32><34><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 206.124.146.176<br> #LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</pre>
|
||
|
||
<pre><EFBFBD><EFBFBD> [root@gateway test]# ip route show dev eth2<br> 192.168.1.0/24<32> scope link<br> 192.168.10.0/24<32> proto kernel<65> scope link<6E> src 192.168.10.254<br> [root@gateway test]#</pre>
|
||
<20><br>
|
||
<20><> In this case, the second entry in /etc/shorewall/masq is no longer
|
||
required.<br>
|
||
<20><br>
|
||
Example 3 -- What if your current configuration is like this?<br>
|
||
<20><br>
|
||
|
||
<pre><EFBFBD><EFBFBD> [root@gateway test]# cat /etc/shorewall/masq<br> #INTERFACE<43><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SUBNET<45><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ADDRESS<br> eth0<68><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> eth2<68><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 206.124.146.176<br> #LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</pre>
|
||
|
||
<pre><EFBFBD><EFBFBD> [root@gateway test]# ip route show dev eth2<br> 192.168.1.0/24<32> scope link<br> 192.168.10.0/24<32> proto kernel<65> scope link<6E> src 192.168.10.254<br> [root@gateway test]#</pre>
|
||
<20><br>
|
||
<20><> In this case, you would want to change the entry in<69> /etc/shorewall/masq
|
||
to:<br>
|
||
|
||
<pre><EFBFBD><EFBFBD> #INTERFACE<43><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SUBNET<45><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ADDRESS<br> eth0<68><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 192.168.1.0/24<32><34><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 206.124.146.176<br> #LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</pre>
|
||
</li>
|
||
</ol>
|
||
|
||
<p><b>2/5/2003 - Shorewall Support included in Webmin 1.06</b><b>0
|
||
</b><b><img border="0" src="images/new10.gif" width="28"
|
||
height="12" alt="(New)">
|
||
</b></p>
|
||
Webmin version 1.060 now has Shorewall support included as standard.
|
||
See <a href="http://www.webmin.com">http://www.webmin.com</a> <b>
|
||
</b>
|
||
<p><b></b></p>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<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&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>
|
||
|
||
|
||
</td>
|
||
|
||
<td width="88"
|
||
bgcolor="#4b017c" valign="top" align="center"> <br>
|
||
</td>
|
||
|
||
</tr>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</tbody>
|
||
|
||
</table>
|
||
|
||
</center>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
<table border="0" cellpadding="5" cellspacing="0"
|
||
style="border-collapse: collapse;" width="100%" id="AutoNumber2"
|
||
bgcolor="#4b017c">
|
||
|
||
<tbody>
|
||
|
||
<tr>
|
||
|
||
<td width="100%"
|
||
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>
|
||
|
||
</td>
|
||
|
||
</tr>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</tbody>
|
||
|
||
</table>
|
||
|
||
|
||
|
||
|
||
<p><font size="2">Updated 2/7/2003 - <a href="support.htm">Tom Eastep</a></font>
|
||
|
||
<br>
|
||
</p>
|
||
</body>
|
||
</html>
|