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<h1 align="center"><font color="#ffffff">Shorewall News Archive</font></h1>
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<p><b>2/4/2003 - Shorewall 1.3.14-RC1</b></p>
<p>Includes the Beta 2 content plus support for OpenVPN tunnels.</p>
<p><b>1/28/2003 - Shorewall 1.3.14-Beta2</b></p>
<p>Includes the Beta 1 content plus restores VLAN device names of the form
$dev.$vid (e.g., eth0.1)</p>
<p><b>1/25/2003 - Shorewall 1.3.14-Beta1</b><br>
</p>
<p>The Beta includes the following changes:<br>
</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<EFBFBD> "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>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>
<b> </b></li>
</ol>
<p><b>1/18/2003 - Shorewall 1.3.13 Documentation in PDF Format</b></p>
<p>Juraj Ontkanin has produced a PDF containing the Shorewall 1.3.13 documenation.
the PDF may be downloaded from</p>
<20><><EFBFBD> <a
href="ftp://slovakia.shorewall.net/mirror/shorewall/pdf/"
target="_self">ftp://slovakia.shorewall.net/mirror/shorewall/pdf/</a><br>
<20><><EFBFBD> <a
href="http://slovakia.shorewall.net/pub/shorewall/pdf/">http://slovakia.shorewall.net/pub/shorewall/pdf/</a>
<p><b>1/17/2003 - shorewall.net has MOVED</b><b><EFBFBD></b></p>
<p>Thanks to the generosity of Alex Martin and <a
href="http://www.rettc.com">Rett Consulting</a>, www.shorewall.net and
ftp.shorewall.net are now hosted on a system in Bellevue, Washington. A
big thanks to Alex for making this happen.<br>
</p>
<p><b>1/13/2003 - Shorewall 1.3.13<br>
</b></p>
<p>Just includes a few things that I had on the burner:<br>
</p>
<ol>
<li>A new 'DNAT-' action has been added for entries in the /etc/shorewall/rules
file. DNAT- is intended for advanced users who wish to minimize the number
of rules that connection requests must traverse.<br>
<br>
A Shorewall DNAT rule actually generates two iptables rules: a header
rewriting rule in the 'nat' table and an ACCEPT rule in the 'filter' table.
A DNAT- rule only generates the first of these rules. This is handy when
you have several DNAT rules that would generate the same ACCEPT rule.<br>
<br>
<20><> Here are three rules from my previous rules file:<br>
<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DNAT<41><54> net<65> dmz:206.124.146.177 tcp smtp - 206.124.146.178<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DNAT<41><54> net<65> dmz:206.124.146.177 tcp smtp - 206.124.146.179<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACCEPT net<65> dmz:206.124.146.177 tcp www,smtp,ftp,...<br>
<br>
<20><> These three rules ended up generating _three_ copies of<br>
<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACCEPT net<65> dmz:206.124.146.177 tcp smtp<br>
<br>
<20><> By writing the rules this way, I end up with only one copy of the
ACCEPT rule.<br>
<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DNAT-<2D> net<65> dmz:206.124.146.177 tcp smtp -<2D> 206.124.146.178<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DNAT-<2D> net<65> dmz:206.124.146.177 tcp smtp -<2D> 206.124.146.179<br>
<20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACCEPT net<65> dmz:206.124.146.177 tcp www,smtp,ftp,....<br>
<br>
</li>
<li>The 'shorewall check' command now prints out the applicable
policy between each pair of zones.<br>
<br>
</li>
<li>A new CLEAR_TC option has been added to shorewall.conf. If this
option is set to 'No' then Shorewall won't clear the current traffic control
rules during [re]start. This setting is intended for use by people that
prefer to configure traffic shaping when the network interfaces come up
rather than when the firewall is started. If that is what you want to do,
set TC_ENABLED=Yes and CLEAR_TC=No and do not supply an /etc/shorewall/tcstart
file. That way, your traffic shaping rules can still use the 'fwmark' classifier
based on packet marking defined in /etc/shorewall/tcrules.<br>
<br>
</li>
<li>A new SHARED_DIR variable has been added that allows distribution
packagers to easily move the shared directory (default /usr/lib/shorewall).
Users should never have a need to change the value of this shorewall.conf
setting.<br>
</li>
</ol>
<p><b>1/6/2003 - <big><big><big>BURNOUT</big></big></big></b><b>
</b></p>
<p><b>Until further notice, I will not be involved in either Shorewall Development
or Shorewall Support</b></p>
<p><b>-Tom Eastep</b><br>
</p>
<p><b>12/30/2002 - Shorewall Documentation in PDF Format</b></p>
<p>Juraj Ontkanin has produced a PDF containing the Shorewall 1.3.12 documenation.
the PDF may be downloaded from</p>
<p><EFBFBD><EFBFBD><EFBFBD> <a href="ftp://slovakia.shorewall.net/mirror/shorewall/pdf/"
target="_self">ftp://slovakia.shorewall.net/mirror/shorewall/pdf/</a><br>
<20><><EFBFBD> <a
href="http://slovakia.shorewall.net/pub/shorewall/pdf/">http://slovakia.shorewall.net/pub/shorewall/pdf/</a><br>
</p>
<p><b>12/27/2002 - Shorewall 1.3.12 Released</b></p>
<p> Features include:<br>
</p>
<ol>
<li>"shorewall refresh" now reloads the traffic shaping rules
(tcrules and tcstart).</li>
<li>"shorewall debug [re]start" now turns off debugging after
an error occurs. This places the point of the failure near the end of
the trace rather than up in the middle of it.</li>
<li>"shorewall [re]start" has been speeded up by more than 40%
with my configuration. Your milage may vary.</li>
<li>A "shorewall show classifiers" command has been added which
shows the current packet classification filters. The output from this
command is also added as a separate page in "shorewall monitor"</li>
<li>ULOG (must be all caps) is now accepted as a valid syslog
level and causes the subject packets to be logged using the ULOG target
rather than the LOG target. This allows you to run ulogd (available
from <a href="http://www.gnumonks.org/projects/ulogd">http://www.gnumonks.org/projects/ulogd</a>)
and log all Shorewall messages <a href="shorewall_logging.html">to
a separate log file</a>.</li>
<li>If you are running a kernel that has a FORWARD chain in the
mangle table ("shorewall show mangle" will show you the chains in the
mangle table), you can set MARK_IN_FORWARD_CHAIN=Yes in <a
href="Documentation.htm#Conf">shorewall.conf</a>. This allows for marking
input packets based on their destination even when you are using Masquerading
or SNAT.</li>
<li>I have cluttered up the /etc/shorewall directory with empty
'init', 'start', 'stop' and 'stopped' files. If you already have a
file with one of these names, don't worry -- the upgrade process won't
overwrite your file.</li>
<li>I have added a new RFC1918_LOG_LEVEL variable to <a
href="Documentation.htm#Conf">shorewall.conf</a>. This variable specifies
the syslog level at which packets are logged as a result of entries
in the /etc/shorewall/rfc1918 file. Previously, these packets were always
logged at the 'info' level.<br>
</li>
</ol>
<p><b>12/20/2002 - Shorewall 1.3.12 Beta 3<br>
</b></p>
This version corrects a problem with Blacklist logging. In Beta
2, if BLACKLIST_LOG_LEVEL was set to anything but ULOG, the firewall
would fail to start and "shorewall refresh" would also fail.<br>
<p><b>12/20/2002 - Shorewall 1.3.12 Beta 2</b></p>
<p>The first public Beta version of Shorewall 1.3.12 is now available (Beta
1 was made available only to a limited audience).<br>
</p>
Features include:<br>
<ol>
<li>"shorewall refresh" now reloads the traffic shaping
rules (tcrules and tcstart).</li>
<li>"shorewall debug [re]start" now turns off debugging
after an error occurs. This places the point of the failure near the
end of the trace rather than up in the middle of it.</li>
<li>"shorewall [re]start" has been speeded up by more than
40% with my configuration. Your milage may vary.</li>
<li>A "shorewall show classifiers" command has been added
which shows the current packet classification filters. The output
from this command is also added as a separate page in "shorewall monitor"</li>
<li>ULOG (must be all caps) is now accepted as a valid syslog
level and causes the subject packets to be logged using the ULOG target
rather than the LOG target. This allows you to run ulogd (available
from <a href="http://www.gnumonks.org/projects/ulogd">http://www.gnumonks.org/projects/ulogd</a>)
and log all Shorewall messages <a href="shorewall_logging.html">to
a separate log file</a>.</li>
<li>If you are running a kernel that has a FORWARD chain
in the mangle table ("shorewall show mangle" will show you the chains
in the mangle table), you can set MARK_IN_FORWARD_CHAIN=Yes in shorewall.conf.
This allows for marking input packets based on their destination even
when you are using Masquerading or SNAT.</li>
<li>I have cluttered up the /etc/shorewall directory with
empty 'init', 'start', 'stop' and 'stopped' files. If you already
have a file with one of these names, don't worry -- the upgrade process
won't overwrite your file.</li>
</ol>
You may download the Beta from:<br>
<blockquote><a href="http://www.shorewall.net/pub/shorewall/Beta">http://www.shorewall.net/pub/shorewall/Beta</a><br>
<a href="ftp://ftp.shorewall.net/pub/shorewall/Beta"
target="_top">ftp://ftp.shorewall.net/pub/shorewall/Beta</a><br>
</blockquote>
<p><b>12/12/2002 - Mandrake Multi Network Firewall <a
href="http://www.mandrakesoft.com"><img src="images/logo2.png"
alt="Powered by Mandrake Linux" width="140" height="21" border="0">
</a></b></p>
Shorewall is at the center of MandrakeSoft's recently-announced
<a
href="http://www.mandrakestore.com/mdkinc/index.php?PAGE=tab_0/menu_0.php&amp;id_art=250&amp;LANG_=en#GOTO_250">Multi
Network Firewall (MNF)</a> product. Here is the <a
href="http://www.mandrakesoft.com/company/press/pr?n=/pr/products/2403">press
release</a>.<br>
<p><b>12/7/2002 - Shorewall Support for Mandrake 9.0</b></p>
<p>Two months and 3 days after I ordered Mandrake 9.0, it was finally delivered.
I have installed 9.0 on one of my systems and I am now in a position
to support Shorewall users who run Mandrake 9.0.</p>
<p><b>12/6/2002 - Debian 1.3.11a Packages Available<br>
</b></p>
<p>Apt-get sources listed at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html.</a></p>
<p><b>12/3/2002 - Shorewall 1.3.11a</b></p>
<p>This is a bug-fix roll up which includes Roger Aich's fix for DNAT with
excluded subnets (e.g., "DNAT foo!bar ..."). Current 1.3.11 users
who don't need rules of this type need not upgrade to 1.3.11.</p>
<p><b>11/24/2002 - Shorewall 1.3.11</b></p>
<p>In this version:</p>
<ul>
<li>A 'tcpflags' option has been added to entries
in <a href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>.
This option causes Shorewall to make a set of sanity check on TCP packet
header flags.</li>
<li>It is now allowed to use 'all' in the SOURCE
or DEST column in a <a href="Documentation.htm#Rules">rule</a>.
When used, 'all' must appear by itself (in may not be qualified) and
it does not enable intra-zone traffic. For example, the rule <br>
<br>
<20> <20> ACCEPT loc all tcp 80<br>
<br>
does not enable http traffic from 'loc' to 'loc'.</li>
<li>Shorewall's use of the 'echo' command is now
compatible with bash clones such as ash and dash.</li>
<li>fw-&gt;fw policies now generate a startup error.
fw-&gt;fw rules generate a warning and are ignored</li>
</ul>
<p><b>11/14/2002 - Shorewall Documentation in PDF Format</b></p>
<p>Juraj Ontkanin has produced a PDF containing the Shorewall 1.3.10 documenation.
the PDF may be downloaded from</p>
<p><EFBFBD><EFBFBD><EFBFBD> <a href="ftp://slovakia.shorewall.net/mirror/shorewall/pdf/"
target="_self">ftp://slovakia.shorewall.net/mirror/shorewall/pdf/</a><br>
<20><><EFBFBD> <a
href="http://slovakia.shorewall.net/pub/shorewall/pdf/">http://slovakia.shorewall.net/pub/shorewall/pdf/</a><br>
</p>
<p><b>11/09/2002 - Shorewall is Back at SourceForge</b><b>
</b></p>
<p>The main Shorewall 1.3 web site is now back at SourceForge at <a
href="http://shorewall.sf.net" target="_top">http://shorewall.sf.net</a>.<br>
</p>
<p><b>11/09/2002 - Shorewall 1.3.10</b></p>
<p>In this version:</p>
<ul>
<li>You may now <a href="IPSEC.htm#Dynamic">define
the contents of a zone dynamically</a> with the <a
href="starting_and_stopping_shorewall.htm">"shorewall add" and "shorewall
delete" commands</a>. These commands are expected to be used
primarily within <a
href="http://www.xs4all.nl/%7Efreeswan/">FreeS/Wan</a> updown
scripts.</li>
<li>Shorewall can now do<a
href="MAC_Validation.html"> MAC verification</a> on ethernet segments.
You can specify the set of allowed MAC addresses on the segment
and you can optionally tie each MAC address to one or more IP addresses.</li>
<li>PPTP Servers and Clients running on the firewall
system may now be defined in the<a href="PPTP.htm"> /etc/shorewall/tunnels</a>
file.</li>
<li>A new 'ipsecnat' tunnel type is supported
for use when the <a href="IPSEC.htm">remote IPSEC endpoint
is behind a NAT gateway</a>.</li>
<li>The PATH used by Shorewall may now be specified
in <a href="Documentation.htm#Conf">/etc/shorewall/shorewall.conf.</a></li>
<li>The main firewall script is now /usr/lib/shorewall/firewall.
The script in /etc/init.d/shorewall is very small and uses /sbin/shorewall
to do the real work. This change makes custom distributions such
as for Debian and for Gentoo easier to manage since it is /etc/init.d/shorewall
that tends to have distribution-dependent code</li>
</ul>
<p><b>10/24/2002 - Shorewall is now in Gentoo Linux</b><b> </b><a
href="http://www.gentoo.org"><br>
</a></p>
Alexandru Hartmann reports that his Shorewall
package is now a part of <a href="http://www.gentoo.org">the Gentoo
Linux distribution</a>. Thanks Alex!<br>
<p><b>10/23/2002 - Shorewall 1.3.10 Beta 1</b><b> </b></p>
In this version:<br>
<ul>
<li>You may now <a href="IPSEC.htm#Dynamic">define
the contents of a zone dynamically</a> with the <a
href="starting_and_stopping_shorewall.htm">"shorewall add" and "shorewall
delete" commands</a>. These commands are expected to be used
primarily within <a
href="http://www.xs4all.nl/%7Efreeswan/">FreeS/Wan</a> updown
scripts.</li>
<li>Shorewall can now do<a
href="MAC_Validation.html"> MAC verification</a> on ethernet segments.
You can specify the set of allowed MAC addresses on the segment
and you can optionally tie each MAC address to one or more IP addresses.</li>
<li>PPTP Servers and Clients running on the firewall
system may now be defined in the<a href="PPTP.htm"> /etc/shorewall/tunnels</a>
file.</li>
<li>A new 'ipsecnat' tunnel type is supported
for use when the <a href="IPSEC.htm">remote IPSEC endpoint
is behind a NAT gateway</a>.</li>
<li>The PATH used by Shorewall may now be specified
in <a href="Documentation.htm#Conf">/etc/shorewall/shorewall.conf.</a></li>
<li>The main firewall script is now /usr/lib/shorewall/firewall.
The script in /etc/init.d/shorewall is very small and uses /sbin/shorewall
to do the real work. This change makes custom distributions such
as for Debian and for Gentoo easier to manage since it is /etc/init.d/shorewall
that tends to have distribution-dependent code.</li>
</ul>
You may download the Beta from:<br>
<ul>
<li><a
href="http://www.shorewall.net/pub/shorewall/Beta">http://www.shorewall.net/pub/shorewall/Beta</a></li>
<li><a
href="ftp://ftp.shorewall.net/pub/shorewall/Beta" target="_top">ftp://ftp.shorewall.net/pub/shorewall/Beta</a></li>
</ul>
<p><b>10/10/2002 - <20>Debian 1.3.9b Packages Available<br>
</b></p>
<p>Apt-get sources listed at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html.</a></p>
<p><b>10/9/2002 - Shorewall 1.3.9b</b></p>
This release rolls up fixes to the installer
and to the firewall script.<br>
<p><b>10/6/2002 - Shorewall.net now running on RH8.0<br>
</b><br>
The firewall and server here at shorewall.net
are now running RedHat release 8.0.<br>
<b><br>
9/30/2002 - Shorewall 1.3.9a</b></p>
Roles up the fix for broken tunnels.<br>
<p><b>9/30/2002 - TUNNELS Broken in 1.3.9!!!</b></p>
There is an updated firewall script at <a
href="ftp://www.shorewall.net/pub/shorewall/errata/1.3.9/firewall"
target="_top">ftp://www.shorewall.net/pub/shorewall/errata/1.3.9/firewall</a>
-- copy that file to /usr/lib/shorewall/firewall.<br>
<p><b>9/28/2002 - Shorewall 1.3.9</b></p>
<p>In this version:<br>
</p>
<ul>
<li><a
href="configuration_file_basics.htm#dnsnames">DNS Names</a> are
now allowed in Shorewall config files (although I recommend against
using them).</li>
<li>The connection SOURCE may now be
qualified by both interface and IP address in a <a
href="Documentation.htm#Rules">Shorewall rule</a>.</li>
<li>Shorewall startup is now disabled
after initial installation until the file /etc/shorewall/startup_disabled
is removed. This avoids nasty surprises during reboot for users
who install Shorewall but don't configure it.</li>
<li>The 'functions' and 'version' files
and the 'firewall' symbolic link have been moved from /var/lib/shorewall
to /usr/lib/shorewall to appease the LFS police at Debian.<br>
</li>
</ul>
<p><b>9/23/2002 - Full Shorewall Site/Mailing List Archive Search Capability
Restored</b><br>
</p>
<img src="images/j0233056.gif"
alt="Brown Paper Bag" width="50" height="86" align="left">
A couple of recent configuration changes
at www.shorewall.net broke the Search facility:<br>
<blockquote>
<ol>
<li>Mailing List Archive Search was
not available.</li>
<li>The Site Search index was incomplete</li>
<li>Only one page of matches was presented.</li>
</ol>
</blockquote>
Hopefully these problems are now corrected.
<p><b>9/23/2002 - Full Shorewall Site/Mailing List Archive Search Capability
Restored<br>
</b></p>
A couple of recent configuration changes
at www.shorewall.net had the negative effect of breaking
the Search facility:<br>
<ol>
<li>Mailing List Archive Search was
not available.</li>
<li>The Site Search index was incomplete</li>
<li>Only one page of matches was presented.</li>
</ol>
Hopefully these problems are now corrected.<br>
<p><b>9/18/2002 - <20>Debian 1.3.8 Packages Available<br>
</b></p>
<p>Apt-get sources listed at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html.</a></p>
<p><b>9/16/2002 - Shorewall 1.3.8</b></p>
<p>In this version:<br>
</p>
<ul>
<li>A <a
href="Documentation.htm#Conf">NEWNOTSYN</a> option has been
added to shorewall.conf. This option determines whether Shorewall
accepts TCP packets which are not part of an established
connection and that are not 'SYN' packets (SYN flag on and ACK
flag off).</li>
<li>The need for the 'multi' option
to communicate between zones za and zb on the same interface
is removed in the case where the chain 'za2zb' and/or 'zb2za'
exists. 'za2zb' will exist if:</li>
<ul>
<li> There is a policy for
za to zb; or </li>
<li>There is at least one rule
for za to zb.</li>
</ul>
</ul>
<ul>
<li>The /etc/shorewall/blacklist
file now contains three columns. In addition to the SUBNET/ADDRESS
column, there are optional PROTOCOL and PORT columns to block
only certain applications from the blacklisted addresses.<br>
</li>
</ul>
<p><b>9/11/2002 - Debian 1.3.7c Packages Available</b></p>
<p>Apt-get sources listed at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</p>
<p><b>9/2/2002 - Shorewall 1.3.7c</b></p>
<p>This is a role up of a fix for "DNAT" rules where the source zone is $FW
(fw).</p>
<p><b>8/31/2002 - I'm not available</b></p>
<p>I'm currently on vacation<6F> -- please respect my need for a couple of
weeks free of Shorewall problem reports.</p>
<p>-Tom</p>
<p><b>8/26/2002 - Shorewall 1.3.7b</b></p>
<p>This is a role up of the "shorewall refresh" bug fix and the change which
reverses the order of "dhcp" and "norfc1918" checking.</p>
<p><b>8/26/2002 - French FTP Mirror is Operational</b></p>
<p><a target="_blank"
href="ftp://france.shorewall.net/pub/mirrors/shorewall">ftp://france.shorewall.net/pub/mirrors/shorewall</a>
is now available.</p>
<p><b>8/25/2002 - Shorewall Mirror in France</b></p>
<p>Thanks to a Shorewall user in Paris, the Shorewall web site is now mirrored
at <a target="_top"
href="http://france.shorewall.net">http://france.shorewall.net</a>.</p>
<p><b>8/25/2002 - Shorewall 1.3.7a Debian Packages Available</b></p>
<p>Lorenzo Martignoni reports that the packages for version 1.3.7a are available
at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</p>
<p><b>8/22/2002 - Shorewall 1.3.7 Wins a Brown Paper Bag Award for its Author
-- Shorewall 1.3.7a released<img border="0"
src="images/j0233056.gif" width="50" height="80" align="middle">
</b></p>
<p>1.3.7a corrects problems occurring in rules file processing when starting
Shorewall 1.3.7.</p>
<p><b>8/22/2002 - Shorewall 1.3.7 Released 8/13/2002</b></p>
<p>Features in this release include:</p>
<ul>
<li>The 'icmp.def' file is now
empty! The rules in that file were required in ipchains
firewalls but are not required in Shorewall. Users who have
ALLOWRELATED=No in <a href="Documentation.htm#Conf">shorewall.conf</a>
should see the <a href="errata.htm#Upgrade">Upgrade Issues</a>.</li>
<li>A 'FORWARDPING' option has
been added to <a href="Documentation.htm#Conf"> shorewall.conf</a>.
The effect of setting this variable to Yes is the same
as the effect of adding an ACCEPT rule for ICMP echo-request
in <a href="shorewall_extension_scripts.htm">/etc/shorewall/icmpdef</a>.
Users who have such a rule in icmpdef are encouraged
to switch to FORWARDPING=Yes.</li>
<li>The loopback CLASS A Network
(127.0.0.0/8) has been added to the rfc1918 file.</li>
<li>Shorewall now works with iptables
1.2.7</li>
<li>The documentation and web
site no longer uses FrontPage themes.</li>
</ul>
<p>I would like to thank John Distler for his valuable input regarding TCP
SYN and ICMP treatment in Shorewall. That input has led
to marked improvement in Shorewall in the last two releases.</p>
<p><b>8/13/2002 - Documentation in the <a target="_top"
href="http://www.shorewall.net/cgi-bin/cvs/cvsweb.cgi">CVS Repository</a></b></p>
<p>The Shorewall-docs project now contains just the HTML and image files -
the Frontpage files have been removed.</p>
<p><b>8/7/2002 - <i>STABLE</i></b> <b>branch added to <a target="_top"
href="http://www.shorewall.net/cgi-bin/cvs/cvsweb.cgi">CVS Repository</a></b></p>
<p>This branch will only be updated after I release a new version of Shorewall
so you can always update from this branch to get the
latest stable tree.</p>
<p><b>8/7/2002 - <a href="errata.htm#Upgrade">Upgrade Issues</a> section added
to the <a href="errata.htm">Errata Page</a></b></p>
<p>Now there is one place to go to look for issues involved with upgrading
to recent versions of Shorewall.</p>
<p><b>8/7/2002 - Shorewall 1.3.6</b></p>
<p>This is primarily a bug-fix rollup with a couple of new features:</p>
<ul>
<li>The latest <a
href="shorewall_quickstart_guide.htm">QuickStart Guides </a>
including the <a href="shorewall_setup_guide.htm">Shorewall Setup
Guide.</a></li>
<li>Shorewall will now DROP TCP
packets that are not part of or related to an existing
connection and that are not SYN packets. These "New not
SYN" packets may be optionally logged by setting the LOGNEWNOTSYN
option in <a href="Documentation.htm#Conf">/etc/shorewall/shorewall.conf</a>.</li>
<li>The processing of "New not
SYN" packets may be extended by commands in the new
<a href="shorewall_extension_scripts.htm">newnotsyn extension script</a>.</li>
</ul>
<p><b>7/30/2002 - Shorewall 1.3.5b Released</b></p>
<p>This interim release:</p>
<ul>
<li>Causes the firewall script
to remove the lock file if it is killed.</li>
<li>Once again allows lists in
the second column of the <a
href="Documentation.htm#Hosts">/etc/shorewall/hosts</a> file.</li>
<li>Includes the latest <a
href="shorewall_quickstart_guide.htm">QuickStart Guides</a>.</li>
</ul>
<p><b>7/29/2002 - New Shorewall Setup Guide Available</b></p>
<p>The first draft of this guide is available at <a
href="http://www.shorewall.net/shorewall_setup_guide.htm"> http://www.shorewall.net/shorewall_setup_guide.htm</a>.
The guide is intended for use by people who are setting
up Shorewall to manage multiple public IP addresses and
by people who want to learn more about Shorewall than is described
in the single-address guides. Feedback on the new guide is welcome.</p>
<p><b>7/28/2002 - Shorewall 1.3.5 Debian Package Available</b></p>
<p>Lorenzo Martignoni reports that the packages are version 1.3.5a and are
available at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</p>
<p><b>7/27/2002 - Shorewall 1.3.5a Released</b></p>
<p>This interim release restores correct handling of REDIRECT rules. </p>
<p><b>7/26/2002 - Shorewall 1.3.5 Released</b></p>
<p>This will be the last Shorewall release for a while. I'm going to be
focusing on rewriting a lot of the documentation.</p>
<p><b><EFBFBD></b>In this version:</p>
<ul>
<li>Empty and invalid source and
destination qualifiers are now detected in the rules
file. It is a good idea to use the 'shorewall check' command
before you issue a 'shorewall restart' command be be sure
that you don't have any configuration problems that will prevent
a successful restart.</li>
<li>Added <b>MERGE_HOSTS</b> variable
in <a href="Documentation.htm#Conf"> shorewall.conf</a> to provide
saner behavior of the /etc/shorewall/hosts file.</li>
<li>The time that the counters
were last reset is now displayed in the heading of the
'status' and 'show' commands.</li>
<li>A <b>proxyarp </b>option has
been added for entries in <a
href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>.
This option facilitates Proxy ARP sub-netting as described in
the Proxy ARP subnetting mini-HOWTO (<a
href="http://www.tldp.org/HOWTO/mini/Proxy-ARP-Subnet/">http://www.tldp.org/HOWTO/mini/Proxy-ARP-Subnet/</a>).
Specifying the proxyarp option for an interface causes
Shorewall to set /proc/sys/net/ipv4/conf/&lt;interface&gt;/proxy_arp.</li>
<li>The Samples have been updated
to reflect the new capabilities in this release. </li>
</ul>
<p><b>7/16/2002 - New Mirror in Argentina</b></p>
<p>Thanks to Arturo "Buanzo" Busleiman, there is now a Shorewall mirror in
Argentina. Thanks Buanzo!!!</p>
<p><b>7/16/2002 - Shorewall 1.3.4 Released</b></p>
<p>In this version:</p>
<ul>
<li>A new <a
href="Documentation.htm#Routestopped"> /etc/shorewall/routestopped</a>
file has been added. This file is intended to eventually
replace the <b>routestopped</b> option in the /etc/shorewall/interface
and /etc/shorewall/hosts files. This new file makes remote
firewall administration easier by allowing any IP or subnet
to be enabled while Shorewall is stopped.</li>
<li>An /etc/shorewall/stopped
<a href="Documentation.htm#Scripts">extension script</a> has been
added. This script is invoked after Shorewall has
stopped.</li>
<li>A <b>DETECT_DNAT_ADDRS </b>option
has been added to <a href="Documentation.htm#Conf">/etc/shoreall/shorewall.conf</a>.
When this option is selected, DNAT rules only apply
when the destination address is the external interface's
primary IP address.</li>
<li>The <a
href="shorewall_quickstart_guide.htm">QuickStart Guide</a> has
been broken into three guides and has been almost entirely
rewritten.</li>
<li>The Samples have been updated
to reflect the new capabilities in this release. </li>
</ul>
<p><b>7/8/2002 - Shorewall 1.3.3 Debian Package Available</b></p>
<p>Lorenzo Marignoni reports that the packages are available at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</p>
<p><b>7/6/2002 - Shorewall 1.3.3 Released</b></p>
<p>In this version:</p>
<ul>
<li>Entries in /etc/shorewall/interface
that use the wildcard character ("+") now have the
"multi" option assumed.</li>
<li>The 'rfc1918' chain in the
mangle table has been renamed 'man1918' to make log
messages generated from that chain distinguishable from those
generated by the 'rfc1918' chain in the filter table.</li>
<li>Interface names appearing
in the hosts file are now validated against the interfaces
file.</li>
<li>The TARGET column in the rfc1918
file is now checked for correctness.</li>
<li>The chain structure in the
nat table has been changed to reduce the number of rules
that a packet must traverse and to correct problems with
NAT_BEFORE_RULES=No</li>
<li>The "hits" command has been
enhanced.</li>
</ul>
<p><b>6/25/2002 - Samples Updated for 1.3.2</b></p>
<p>The comments in the sample configuration files have been updated to reflect
new features introduced in Shorewall 1.3.2.</p>
<p><b>6/25/2002 - Shorewall 1.3.1 Debian Package Available</b></p>
<p>Lorenzo Marignoni reports that the package is available at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</p>
<p><b>6/19/2002 - Documentation Available in PDF Format</b></p>
<p>Thanks to Mike Martinez, the Shorewall Documentation is now available for
<a href="download.htm">download</a> in <a href="http://www.adobe.com">Adobe</a>
PDF format.</p>
<p><b>6/16/2002 - Shorewall 1.3.2 Released</b></p>
<p>In this version:</p>
<ul>
<li>A <a
href="Documentation.htm#Starting">logwatch command</a> has
been added to /sbin/shorewall.</li>
<li>A <a
href="blacklisting_support.htm">dynamic blacklist facility</a>
has been added.</li>
<li>Support for the <a
href="Documentation.htm#Conf">Netfilter multiport match function</a>
has been added.</li>
<li>The files <b>firewall, functions
</b>and <b>version</b> have been moved from
/etc/shorewall to /var/lib/shorewall.</li>
</ul>
<p><b>6/6/2002 - Why CVS Web access is Password Protected</b></p>
<p>Last weekend, I installed the CVS Web package to provide brower-based access
to the Shorewall CVS repository. Since then, I have had several instances
where my server was almost unusable due to the high load generated by website
copying tools like HTTrack and WebStripper. These mindless tools:</p>
<ul>
<li>Ignore robot.txt files.</li>
<li>Recursively copy everything
that they find.</li>
<li>Should be classified as weapons
rather than tools.</li>
</ul>
<p>These tools/weapons are particularly damaging when combined with CVS Web
because they doggedly follow every link in the cgi-generated
HTML resulting in 1000s of executions of the cvsweb.cgi
script. Yesterday, I spend several hours implementing measures
to block these tools but unfortunately, these measures resulted
in my server OOM-ing under even moderate load.</p>
<p>Until I have the time to understand the cause of the OOM (or until I buy
more RAM if that is what is required), CVS Web access
will remain Password Protected. </p>
<p><b>6/5/2002 - Shorewall 1.3.1 Debian Package Available</b></p>
<p>Lorenzo Marignoni reports that the package is available at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</p>
<p><b>6/2/2002 - Samples Corrected</b></p>
<p>The 1.3.0 samples configurations had several serious problems that prevented
DNS and SSH from working properly. These problems have
been corrected in the <a
href="/pub/shorewall/samples-1.3.1">1.3.1 samples.</a></p>
<p><b>6/1/2002 - Shorewall 1.3.1 Released</b></p>
<p>Hot on the heels of 1.3.0, this release:</p>
<ul>
<li>Corrects a serious problem
with "all <i>&lt;zone&gt;</i> CONTINUE" policies.
This problem is present in all versions of Shorewall that
support the CONTINUE policy. These previous versions optimized
away the "all2<i>&lt;zone&gt;</i>" chain and replaced it with
the "all2all" chain with the usual result that a policy of REJECT
was enforced rather than the intended CONTINUE policy.</li>
<li>Adds an <a
href="Documentation.htm#rfc1918">/etc/shorewall/rfc1918</a>
file for defining the exact behavior of the<a
href="Documentation.htm#Interfaces"> 'norfc1918' interface option</a>.</li>
</ul>
<p><b>5/29/2002 - Shorewall 1.3.0 Released</b></p>
<p>In addition to the changes in Beta 1, Beta 2 and RC1, Shorewall 1.3.0
includes:</p>
<ul>
<li>A 'filterping' interface option
that allows ICMP echo-request (ping) requests addressed
to the firewall to be handled by entries in /etc/shorewall/rules
and /etc/shorewall/policy.</li>
</ul>
<p><b>5/23/2002 - Shorewall 1.3 RC1 Available</b></p>
<p>In addition to the changes in Beta 1 and Beta 2, RC1 (Version 1.2.92)
incorporates the following:</p>
<ul>
<li>Support for the /etc/shorewall/whitelist
file has been withdrawn. If you need whitelisting, see
<a href="/1.3/whitelisting_under_shorewall.htm">these instructions</a>.</li>
</ul>
<p><b>5/19/2002 - Shorewall 1.3 Beta 2 Available</b></p>
<p>In addition to the changes in Beta 1, this release which carries the
designation 1.2.91 adds:</p>
<ul>
<li>The structure of the firewall
is changed markedly. There is now an INPUT and a FORWARD
chain for each interface; this reduces the number of rules
that a packet must traverse, especially in complicated setups.</li>
<li><a
href="Documentation.htm#Exclude">Sub-zones may now be excluded
from DNAT and REDIRECT rules.</a></li>
<li>The names of the columns in
a number of the configuration files have been changed
to be more consistent and self-explanatory and the documentation
has been updated accordingly.</li>
<li>The sample configurations
have been updated for 1.3.</li>
</ul>
<p><b>5/17/2002 - Shorewall 1.3 Beta 1 Available</b></p>
<p>Beta 1 carries the version designation 1.2.90 and implements the following
features:</p>
<ul>
<li>Simplified rule syntax which
makes the intent of each rule clearer and hopefully makes
Shorewall easier to learn.</li>
<li>Upward compatibility with
1.2 configuration files has been maintained so that
current users can migrate to the new syntax at their convenience.</li>
<li><b><font color="#cc6666">WARNING:<3A>
Compatibility with the old parameterized sample configurations
has NOT been maintained. Users still running those configurations
should migrate to the new sample configurations before upgrading
to 1.3 Beta 1.</font></b></li>
</ul>
<p><b>5/4/2002 - Shorewall 1.2.13 is Available</b></p>
<p>In this version:</p>
<ul>
<li><a
href="Documentation.htm#Whitelist">White-listing</a> is supported.</li>
<li><a
href="Documentation.htm#Policy">SYN-flood protection </a>is
added.</li>
<li>IP addresses added under <a
href="Documentation.htm#Conf">ADD_IP_ALIASES and ADD_SNAT_ALIASES</a>
now inherit the VLSM and Broadcast Address of the interface's
primary IP address.</li>
<li>The order in which port forwarding
DNAT and Static DNAT <a
href="Documentation.htm#Conf">can now be reversed</a> so that port
forwarding rules can override the contents of <a
href="Documentation.htm#NAT"> /etc/shorewall/nat</a>. </li>
</ul>
<p><b>4/30/2002 - Shorewall Debian News</b></p>
<p>Lorenzo Marignoni reports that Shorewall 1.2.12 is now in both the <a
href="http://packages.debian.org/testing/net/shorewall.html">Debian
Testing Branch</a> and the <a
href="http://packages.debian.org/unstable/net/shorewall.html">Debian
Unstable Branch</a>.</p>
<p><b>4/20/2002 - Shorewall 1.2.12 is Available</b></p>
<ul>
<li>The 'try' command works again</li>
<li>There is now a single RPM
that also works with SuSE.</li>
</ul>
<p><b>4/17/2002 - Shorewall Debian News</b></p>
<p>Lorenzo Marignoni reports that:</p>
<ul>
<li>Shorewall 1.2.10 is in the
<a href="http://packages.debian.org/testing/net/shorewall.html">Debian
Testing Branch</a></li>
<li>Shorewall 1.2.11 is in the
<a href="http://packages.debian.org/unstable/net/shorewall.html">Debian
Unstable Branch</a></li>
</ul>
<p>Thanks, Lorenzo!</p>
<p><b>4/16/2002 - Shorewall 1.2.11 RPM Available for SuSE</b></p>
<p>Thanks to <a href="mailto:s.mohr@familie-mohr.com">Stefan Mohr</a>, there
is now a Shorewall 1.2.11 <a
href="http://www.shorewall.net/pub/shorewall/shorewall-1.2-11.i686.suse73.rpm">
SuSE RPM</a> available. </p>
<p><b>4/13/2002 - Shorewall 1.2.11 Available </b></p>
<p>In this version:</p>
<ul>
<li>The 'try' command now accepts
an optional timeout. If the timeout is given in the
command, the standard configuration will automatically be
restarted after the new configuration has been running for
that length of time. This prevents a remote admin from being
locked out of the firewall in the case where the new configuration
starts but prevents access.</li>
<li>Kernel route filtering may
now be enabled globally using the new ROUTE_FILTER parameter
in <a href="Documentation.htm#Conf"> /etc/shorewall/shorewall.conf</a>.</li>
<li>Individual IP source addresses
and/or subnets may now be excluded from masquerading/SNAT.</li>
<li>Simple "Yes/No" and "On/Off"
values are now case-insensitive in /etc/shorewall/shorewall.conf.</li>
</ul>
<p><b>4/13/2002 - Hamburg Mirror now has FTP </b></p>
<p>Stefan now has an FTP mirror at <a target="_blank"
href="ftp://germany.shorewall.net/pub/shorewall"> ftp://germany.shorewall.net/pub/shorewall</a>.<2E>
Thanks Stefan!</p>
<p><b>4/12/2002 - New Mirror in Hamburg</b></p>
<p>Thanks to <a href="mailto:s.mohr@familie-mohr.com">Stefan Mohr</a>, there
is now a mirror of the Shorewall website at <a
target="_top" href="http://germany.shorewall.net"> http://germany.shorewall.net</a>.
</p>
<p><b>4/10/2002 - Shorewall QuickStart Guide Version 1.1 Available</b></p>
<p><a href="shorewall_quickstart_guide.htm">Version 1.1 of the QuickStart
Guide</a> is now available. Thanks to those who have
read version 1.0 and offered their suggestions. Corrections
have also been made to the sample scripts.</p>
<p><b>4/9/2002 - Shorewall QuickStart Guide Version 1.0 Available</b></p>
<p><a href="shorewall_quickstart_guide.htm">Version 1.0 of the QuickStart
Guide</a> is now available. This Guide and its accompanying
sample configurations are expected to provide a replacement
for the recently withdrawn parameterized samples. </p>
<p><b>4/8/2002 - Parameterized Samples Withdrawn </b></p>
<p>Although the <a
href="http://www.shorewall.net/pub/shorewall/samples-1.2.1/">parameterized
samples</a> have allowed people to get a firewall up
and running quickly, they have unfortunately set the wrong
level of expectation among those who have used them. I am
therefore withdrawing support for the samples and I am recommending
that they not be used in new Shorewall installations.</p>
<p><b>4/2/2002 - Updated Log Parser</b></p>
<p><a href="mailto:JML@redwoodtech.com">John Lodge</a> has provided an updated
version of his <a href="pub/shorewall/parsefw/">CGI-based
log parser</a> with corrected date handling. </p>
<p><b>3/30/2002 - Shorewall Website Search Improvements</b></p>
<p>The quick search on the home page now excludes the mailing list archives.
The <a href="htdig/search.html">Extended Search</a> allows
excluding the archives or restricting the search to just
the archives. An archive search form is also available on
the <a href="http://lists.shorewall.net/mailing_list.htm">mailing list
information page</a>.</p>
<p><b>3/28/2002 - Debian Shorewall News (From Lorenzo Martignoni)</b></p>
<ul>
<li>The 1.2.10 Debian Package
is available at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</li>
<li>Shorewall 1.2.9 is now in
the <a
href="http://packages.debian.org/unstable/net/shorewall.html">Debian
Unstable Distribution</a>.</li>
</ul>
<p><b>3/25/2002 - Log Parser Available</b></p>
<p><a href="mailto:JML@redwoodtech.com">John Lodge</a> has provided a <a
href="pub/shorewall/parsefw/">CGI-based log parser</a> for Shorewall. Thanks
John.</p>
<p><b>3/20/2002 - Shorewall 1.2.10 Released</b></p>
<p>In this version:</p>
<ul>
<li>A "shorewall try" command
has been added (syntax: shorewall try <i> &lt;configuration
directory&gt;</i>). This command attempts "shorewall -c <i>
&lt;configuration directory&gt;</i> start" and if that results
in the firewall being stopped due to an error, a "shorewall start"
command is executed. The 'try' command allows you to create
a new <a href="Documentation.htm#Configs"> configuration</a> and
attempt to start it; if there is an error that leaves your firewall
in the stopped state, it will automatically be restarted using
the default configuration (in /etc/shorewall).</li>
<li>A new variable ADD_SNAT_ALIASES
has been added to <a href="Documentation.htm#Conf">/etc/shorewall/shorewall.conf</a>.
If this variable is set to "Yes", Shorewall will automatically
add IP addresses listed in the third column of the
<a href="Documentation.htm#Masq"> /etc/shorewall/masq</a> file.</li>
<li>Copyright notices have been
added to the documenation.</li>
</ul>
<p><b>3/11/2002 - Shorewall 1.2.9 Released</b></p>
<p>In this version:</p>
<ul>
<li>Filtering by <a
href="Documentation.htm#MAC">MAC address</a> has been added.
MAC addresses may be used as the source address in:
<ul>
<li>Filtering rules (<a
href="Documentation.htm#Rules">/etc/shorewall/rules</a>)</li>
<li>Traffic Control Classification
Rules (<a href="traffic_shaping.htm#tcrules">/etc/shorewall/tcrules</a>)</li>
<li>TOS Rules (<a
href="Documentation.htm#TOS">/etc/shorewall/tos</a>)</li>
<li>Blacklist (<a
href="Documentation.htm#Blacklist">/etc/shorewall/blacklist</a>)</li>
</ul>
</li>
<li>Several bugs have been fixed</li>
<li>The 1.2.9 Debian Package is
also available at <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a>.</li>
</ul>
<p><b>3/1/2002 - 1.2.8 Debian Package is Available</b></p>
<p>See <a href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a></p>
<p><b>2/25/2002 - New Two-interface Sample</b></p>
<p>I've enhanced the two interface sample to allow access from the firewall
to servers in the local zone - <a
href="http://www.shorewall.net/pub/shorewall/LATEST.samples/two-interfaces.tgz">
http://www.shorewall.net/pub/shorewall/LATEST.samples/two-interfaces.tgz</a></p>
<p><b>2/23/2002 - Shorewall 1.2.8 Released</b></p>
<p>Do to a serious problem with 1.2.7, I am releasing 1.2.8. It corrects
problems associated with the lock file used to prevent multiple state-changing
operations from occuring simultaneously. My apologies
for any inconvenience my carelessness may have caused.</p>
<p><b>2/22/2002 - Shorewall 1.2.7 Released</b></p>
<p>In this version:</p>
<ul>
<li>UPnP probes (UDP destination
port 1900) are now silently dropped in the <i>common</i>
chain</li>
<li>RFC 1918 checking in the mangle
table has been streamlined to no longer require packet
marking. RFC 1918 checking in the filter table has been
changed to require half as many rules as previously.</li>
<li>A 'shorewall check' command
has been added that does a cursory validation of the
zones, interfaces, hosts, rules and policy files.</li>
</ul>
<p><b>2/18/2002 - 1.2.6 Debian Package is Available</b></p>
<p>See <a href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a></p>
<p><b>2/8/2002 - Shorewall 1.2.6 Released</b></p>
<p>In this version:</p>
<ul>
<li>$-variables may now be used
anywhere in the configuration files except /etc/shorewall/zones.</li>
<li>The interfaces and hosts files
now have their contents validated before any changes
are made to the existing Netfilter configuration. The appearance
of a zone name that isn't defined in /etc/shorewall/zones
causes "shorewall start" and "shorewall restart" to abort without
changing the Shorewall state. Unknown options in either file cause
a warning to be issued.</li>
<li>A problem occurring when BLACKLIST_LOGLEVEL
was not set has been corrected.</li>
</ul>
<p><b>2/4/2002 - Shorewall 1.2.5 Debian Package Available</b></p>
<p>see <a href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a></p>
<p><b>2/1/2002 - Shorewall 1.2.5 Released</b></p>
<p>Due to installation problems with Shorewall 1.2.4, I have released Shorewall
1.2.5. Sorry for the rapid-fire development.</p>
<p>In version 1.2.5:</p>
<ul>
<li>The installation problems have
been corrected.</li>
<li><a
href="Documentation.htm#Masq">SNAT</a> is now supported.</li>
<li>A "shorewall version" command
has been added</li>
<li>The default value of the STATEDIR
variable in /etc/shorewall/shorewall.conf has been changed
to /var/lib/shorewall in order to conform to the GNU/Linux
File Hierarchy Standard, Version 2.2.</li>
</ul>
<p><b>1/28/2002 - Shorewall 1.2.4 Released</b></p>
<ul>
<li>The "fw" zone <a
href="Documentation.htm#FW">may now be given a different name</a>.</li>
<li>You may now place end-of-line
comments (preceded by '#') in any of the configuration
files</li>
<li>There is now protection against
against two state changing operations occuring concurrently.
This is implemented using the 'lockfile' utility if it
is available (lockfile is part of procmail); otherwise, a less
robust technique is used. The lockfile is created in the STATEDIR
defined in /etc/shorewall/shorewall.conf and has the name "lock".</li>
<li>"shorewall start" no longer
fails if "detect" is specified in <a
href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>
for an interface with subnet mask 255.255.255.255.</li>
</ul>
<p><b>1/27/2002 - Shorewall 1.2.3 Debian Package Available </b>-- see <a
href="http://security.dsi.unimi.it/%7Elorenzo/debian.html">http://security.dsi.unimi.it/~lorenzo/debian.html</a></p>
<p><b>1/20/2002 - Corrected firewall script available<6C></b></p>
<p>Corrects a problem with BLACKLIST_LOGLEVEL. See <a href="errata.htm">the
errata</a> for details.</p>
<p><b>1/19/2002 - Shorewall 1.2.3 Released</b></p>
<p>This is a minor feature and bugfix release. The single new feature is:</p>
<ul>
<li>Support for TCP MSS Clamp to
PMTU -- This support is usually required when the internet
connection is via PPPoE or PPTP and may be enabled using the
<a href="Documentation.htm#ClampMSS">CLAMPMSS</a> option in /etc/shorewall/shorewall.conf.</li>
</ul>
<p>The following problems were corrected:</p>
<ul>
<li>The "shorewall status" command
no longer hangs.</li>
<li>The "shorewall monitor" command
now displays the icmpdef chain</li>
<li>The CLIENT PORT(S) column in
tcrules is no longer ignored</li>
</ul>
<p><b>1/18/2002 - Shorewall 1.2.2 packaged with new </b><a
href="http://leaf.sourceforge.net">LEAF</a><b> release</b></p>
<p>Jacques Nilo and Eric Wolzak have released a kernel 2.4.16 LEAF distribution
that includes Shorewall 1.2.2. See <a
href="http://leaf.sourceforge.net/devel/jnilo">http://leaf.sourceforge.net/devel/jnilo</a>
for details.</p>
<p><b>1/11/2002 - Debian Package (.deb) Now Available - </b>Thanks to <a
href="mailto:lorenzo.martignoni@milug.org">Lorenzo Martignoni</a>, a 1.2.2
Shorewall Debian package is now available. There is a link
to Lorenzo's site from the <a href="download.htm">Shorewall
download page</a>.</p>
<p><b>1/9/2002 - Updated 1.2.2 /sbin/shorewall available - </b><a
href="/pub/shorewall/errata/1.2.2/shorewall">This corrected version </a>restores
the "shorewall status" command to health.</p>
<p><b>1/8/2002 - Shorewall 1.2.2 Released</b></p>
<p>In version 1.2.2</p>
<ul>
<li>Support for IP blacklisting
has been added
<ul>
<li>You specify whether you want
packets from blacklisted hosts dropped or rejected
using the <a href="Documentation.htm#BLDisposition">BLACKLIST_DISPOSITION
</a>setting in /etc/shorewall/shorewall.conf</li>
<li>You specify whether you want
packets from blacklisted hosts logged and at what
syslog level using the <a href="Documentation.htm#BLLoglevel">BLACKLIST_LOGLEVEL</a>
setting in /etc/shorewall/shorewall.conf</li>
<li>You list the IP addresses/subnets
that you wish to blacklist in <a
href="Documentation.htm#Blacklist">/etc/shorewall/blacklist</a></li>
<li>You specify the interfaces
you want checked against the blacklist using the
new "<a href="Documentation.htm#BLInterface">blacklist</a>"
option in /etc/shorewall/interfaces.</li>
<li>The black list is refreshed
from /etc/shorewall/blacklist by the "shorewall
refresh" command.</li>
</ul>
</li>
<li>Use of TCP RST replies has
been expanded<65>
<ul>
<li>TCP connection requests rejected
because of a REJECT policy are now replied with
a TCP RST packet.</li>
<li>TCP connection requests rejected
because of a protocol=all rule in /etc/shorewall/rules
are now replied with a TCP RST packet.</li>
</ul>
</li>
<li>A <a
href="Documentation.htm#Logfile">LOGFILE</a> specification
has been added to /etc/shorewall/shorewall.conf. LOGFILE is used
to tell the /sbin/shorewall program where to look for Shorewall
messages.</li>
</ul>
<p><b>1/5/2002 - New Parameterized Samples (<a
href="ftp://ftp.shorewall.net/pub/shorewall/samples-1.2.0/"
target="_blank">version 1.2.0</a>) released. </b>These are minor updates
to the previously-released samples. There are two new rules
added:</p>
<ul>
<li>Unless you have explicitly
enabled Auth connections (tcp port 113) to your firewall,
these connections will be REJECTED rather than DROPPED.
This speeds up connection establishment to some servers.</li>
<li>Orphan DNS replies are now
silently dropped.</li>
</ul>
<p>See the README file for upgrade instructions.</p>
<p><b>1/1/2002 - <u><font color="#ff6633">Shorewall Mailing List Moving</font></u></b></p>
<p>The Shorewall mailing list hosted at <a href="http://sourceforge.net">
Sourceforge</a> is moving to Shorewall.net. If you are
a current subscriber to the list at Sourceforge, please <a
href="shorewall_mailing_list_migration.htm">see these instructions</a>.
If you would like to subscribe to the new list, visit <a
href="http://www.shorewall.net/mailman/listinfo/shorewall-users">http://www.shorewall.net/mailman/listinfo/shorewall-users</a>.</p>
<p><b>12/31/2001 - Shorewall 1.2.1 Released</b></p>
<p>In version 1.2.1:</p>
<ul>
<li><a
href="Documentation.htm#LogUncleanOption">Logging of Mangled/Invalid
Packets</a> is added.<2E></li>
<li>The <a href="IPIP.htm">tunnel
script</a> has been corrected.</li>
<li>'shorewall show tc' now correctly
handles tunnels.</li>
</ul>
<p><b>12/21/2001 - Shorewall 1.2.0 Released!</b> - <b>I couldn't resist releasing
1.2 on 12/21/2001</b></p>
<p>Version 1.2 contains the following new features:</p>
<ul>
<li>Support for <a
href="traffic_shaping.htm">Traffic Control/Shaping</a></li>
<li>Support for <a
href="Documentation.htm#Unclean">Filtering of Mangled/Invalid
Packets</a></li>
<li>Support for <a
href="IPIP.htm">GRE Tunnels</a></li>
</ul>
<p>For the next month or so, I will continue to provide corrections to version
1.1.18 as necessary so that current version 1.1.x users
will not be forced into a quick upgrade to 1.2.0 just to
have access to bug fixes.</p>
<p>For those of you who have installed one of the Beta RPMS, you will need
to use the "--oldpackage" option when upgrading to 1.2.0:</p>
<blockquote>
<p>rpm -Uvh --oldpackage shorewall-1.2-0.noarch.rpm</p>
</blockquote>
<p><b>12/19/2001 - Thanks to <a href="mailto:scowles@infohiiway.com">Steve
Cowles</a>, there is now a Shorewall mirror in Texas.
</b>This web site is mirrored at <a
href="http://www.infohiiway.com/shorewall" target="_top">http://www.infohiiway.com/shorewall</a>
and the ftp site is at <a
href="ftp://ftp.infohiiway.com/pub/mirrors/shorewall">ftp://ftp.infohiiway.com/pub/mirrors/shorewall</a>.<b><EFBFBD></b></p>
<p><b>11/30/2001 - A new set of the parameterized <a
href="ftp://ftp.shorewall.net/pub/shorewall/samples-1.1.18">Sample
Configurations</a> has been released</b>. In this version:</p>
<ul>
<li>Ping is now allowed between
the zones.</li>
<li>In the three-interface configuration,
it is now possible to configure the internet services
that are to be available to servers in the DMZ.<2E></li>
</ul>
<p><b>11/20/2001 - The current version of Shorewall is 1.1.18.<2E></b></p>
<p>In this version:</p>
<ul>
<li>The spelling of ADD_IP_ALIASES
has been corrected in the shorewall.conf file</li>
<li>The logic for deleting user-defined
chains has been simplified so that it avoids a bug in
the LRP version of the 'cut' utility.</li>
<li>The /var/lib/lrpkg/shorwall.conf
file has been corrected to properly display the NAT
entry in that file.</li>
</ul>
<p><b>11/19/2001 - Thanks to <a href="mailto:shorewall@timelord.sk">Juraj
Ontkanin</a>, there is now a Shorewall mirror in
the Slovak Republic</b>. The website is now mirrored at <a
href="http://www.nrg.sk/mirror/shorewall" target="_top">http://www.nrg.sk/mirror/shorewall</a>
and the FTP site is mirrored at <a
href="ftp://ftp.nrg.sk/mirror/shorewall">ftp://ftp.nrg.sk/mirror/shorewall</a>.</p>
<p><b>11/2/2001 - Announcing Shorewall Parameter-driven Sample Configurations.</b>
There are three sample configurations:</p>
<ul>
<li>One Interface -- for a standalone
system.</li>
<li>Two Interfaces -- A masquerading
firewall.</li>
<li>Three Interfaces -- A masquerading
firewall with DMZ.</li>
</ul>
<p>Samples may be downloaded from <a
href="ftp://ftp.shorewall.net/pub/shorewall/samples-1.1.17"> ftp://ftp.shorewall.net/pub/shorewall/samples-1.1.17</a>
. See the README file for instructions.</p>
<p><b>11/1/2001 - The current version of Shorewall is 1.1.17</b>.<2E> I intend
this to be the last of the 1.1 Shorewall releases.</p>
<p> In this version:</p>
<ul>
<li>The handling of <a
href="Documentation.htm#Aliases">ADD_IP_ALIASES</a> has
been corrected.<2E></li>
</ul>
<p><b>10/22/2001 - The current version of Shorewall is 1.1.16</b>. In this
version:</p>
<ul>
<li>A new "shorewall show connections"
command has been added.</li>
<li>In the "shorewall monitor"
output, the currently tracked connections are now shown
on a separate page.</li>
<li>Prior to this release, Shorewall
unconditionally added the external IP adddress(es)
specified in /etc/shorewall/nat. Beginning with version
1.1.16, a new parameter (<a href="Documentation.htm#Aliases">ADD_IP_ALIASES</a>)
may be set to "no" (or "No") to inhibit this behavior.
This allows IP aliases created using your distribution's
network configuration tools to be used in static NAT.<2E></li>
</ul>
<p><b>10/15/2001 - The current version of Shorewall is 1.1.15.</b> In this
version:</p>
<ul>
<li>Support for nested zones has
been improved. See <a href="Documentation.htm#Nested"> the
documentation</a> for details</li>
<li>Shorewall now correctly checks
the alternate configuration directory for the 'zones'
file.</li>
</ul>
<p><b>10/4/2001 - The current version of Shorewall is 1.1.14.</b> In this
version</p>
<ul>
<li>Shorewall now supports alternate
configuration directories. When an alternate directory
is specified when starting or restarting Shorewall (e.g.,
"shorewall -c /etc/testconf restart"), Shorewall will first
look for configuration files in the alternate directory then
in /etc/shorewall. To create an alternate configuration simply:<br>
1. Create a New Directory<br>
2. Copy to that directory any
of your configuration files that you want to change.<br>
3. Modify the copied files as
needed.<br>
4. Restart Shorewall specifying
the new directory.</li>
<li>The rules for allowing/disallowing
icmp echo-requests (pings) are now moved after rules
created when processing the rules file. This allows you to
add rules that selectively allow/deny ping based on source
or destination address.</li>
<li>Rules that specify multiple
client ip addresses or subnets no longer cause startup
failures.</li>
<li>Zone names in the policy file
are now validated against the zones file.</li>
<li>If you have <a
href="Documentation.htm#MangleEnabled">packet mangling</a> support
enabled, the "<a href="Documentation.htm#Interfaces">norfc1918</a>"
interface option now logs and drops any incoming packets
on the interface that have an RFC 1918 destination address.</li>
</ul>
<p><b>9/12/2001 - The current version of Shorewall is 1.1.13</b>. In this
version</p>
<ul>
<li>Shell variables can now be
used to parameterize Shorewall rules.</li>
<li>The second column in the hosts
file may now contain a comma-separated list.<br>
<br>
Example:<br>
<20><><EFBFBD> sea<65><61><EFBFBD> eth0:130.252.100.0/24,206.191.149.0/24</li>
<li>Handling of multi-zone interfaces
has been improved. See the <a
href="Documentation.htm#Interfaces">documentation for the /etc/shorewall/interfaces
file</a>.</li>
</ul>
<p><b>8/28/2001 - The current version of Shorewall is 1.1.12</b>. In this
version</p>
<ul>
<li>Several columns in the rules
file may now contain comma-separated lists.</li>
<li>Shorewall is now more rigorous
in parsing the options in /etc/shorewall/interfaces.</li>
<li>Complementation using "!" is
now supported in rules.</li>
</ul>
<p><b>7/28/2001 - The current version of Shorewall is 1.1.11</b>. In this
version</p>
<ul>
<li>A "shorewall refresh" command
has been added to allow for refreshing the rules associated
with the broadcast address on a dynamic interface. This
command should be used in place of "shorewall restart" when the
internet interface's IP address changes.</li>
<li>The /etc/shorewall/start file
(if any) is now processed after all temporary rules have
been deleted. This change prevents the accidental removal
of rules added during the processing of that file.</li>
<li>The "dhcp" interface option
is now applicable to firewall interfaces used by a DHCP
server running on the firewall.</li>
<li>The RPM can now be built from
the .tgz file using "rpm -tb"<22></li>
</ul>
<p><b>7/6/2001 - The current version of Shorewall is 1.1.10.</b> In this version</p>
<ul>
<li>Shorewall now enables Ipv4
Packet Forwarding by default. Packet forwarding may
be disabled by specifying IP_FORWARD=Off in /etc/shorewall/shorewall.conf.
If you don't want Shorewall to enable or disable packet
forwarding, add IP_FORWARDING=Keep to your /etc/shorewall/shorewall.conf
file.</li>
<li>The "shorewall hits" command
no longer lists extraneous service names in its last
report.</li>
<li>Erroneous instructions in the
comments at the head of the firewall script have been
corrected.</li>
</ul>
<p><b>6/23/2001 - The current version of Shorewall is 1.1.9.</b> In this version</p>
<ul>
<li>The "tunnels" file <u>really</u>
is in the RPM now.</li>
<li>SNAT can now be applied to
port-forwarded connections.</li>
<li>A bug which would cause firewall
start failures in some dhcp configurations has been
fixed.</li>
<li>The firewall script now issues
a message if you have the name of an interface in the
second column in an entry in /etc/shorewall/masq and that
interface is not up.</li>
<li>You can now configure Shorewall
so that it<a href="Documentation.htm#NatEnabled"> doesn't require the
NAT and/or mangle netfilter modules</a>.</li>
<li>Thanks to Alex<65> Polishchuk,
the "hits" command from seawall is now in shorewall.</li>
<li>Support for <a
href="IPIP.htm">IPIP tunnels</a> has been added.</li>
</ul>
<p><b>6/18/2001 - The current version of Shorewall is 1.1.8</b>. In this version</p>
<ul>
<li>A typo in the sample rules
file has been corrected.</li>
<li>It is now possible to restrict
masquerading by<a href="Documentation.htm#Masq"> destination
host or subnet.</a></li>
<li>It is now possible to have
static <a href="NAT.htm#LocalPackets">NAT rules applied to packets
originating on the firewall itself</a>.</li>
</ul>
<p><b>6/2/2001 - The current version of Shorewall is 1.1.7.</b> In this version</p>
<ul>
<li>The TOS rules are now deleted
when the firewall is stopped.</li>
<li>The .rpm will now install regardless
of which version of iptables is installed.</li>
<li>The .rpm will now install without
iproute2 being installed.</li>
<li>The documentation has been
cleaned up.</li>
<li>The sample configuration files
included in Shorewall have been formatted to 80 columns
for ease of editing on a VGA console.</li>
</ul>
<p><b>5/25/2001 - The current version of Shorewall is 1.1.6</b>. In this version</p>
<ul>
<li><a
href="Documentation.htm#lograte">You may now rate-limit the
packet log.</a></li>
<li> Previous versions
of Shorewall have an implementation of Static NAT which violates
the principle of least surprise.<2E> NAT only occurs for packets
arriving at (DNAT) or send from (SNAT) the interface named
in the INTERFACE column of /etc/shorewall/nat. Beginning with
version 1.1.6, NAT effective regardless of which interface
packets come from or are destined to. To get compatibility with
prior versions, I have added a new "ALL <a
href="NAT.htm#AllInterFaces">"ALL INTERFACES"<22> column to /etc/shorewall/nat</a>.
By placing "no" or "No" in the new column, the NAT behavior
of prior versions may be retained.<2E></li>
<li>The treatment of <a
href="IPSEC.htm#RoadWarrior">IPSEC Tunnels where the remote gateway
is a standalone system has been improved</a>. Previously, it was
necessary to include an additional rule allowing UDP port 500 traffic
to pass through the tunnel. Shorewall will now create this rule
automatically when you place the name of the remote peer's zone in
a new GATEWAY ZONE column in /etc/shorewall/tunnels.<2E></li>
</ul>
<p><b>5/20/2001 - The current version of Shorewall is 1.1.5.</b> In this version</p>
<ul>
<li><a
href="Documentation.htm#modules">You may now pass parameters
when loading netfilter modules and you can specify the modules
to load.</a></li>
<li>Compressed modules are now
loaded. This requires that you modutils support loading
compressed modules.</li>
<li><a
href="Documentation.htm#TOS">You may now set the Type of Service
(TOS) field in packets.</a></li>
<li>Corrected rules generated for
port redirection (again).</li>
</ul>
<p><b>5/10/2001 - The current version of Shorewall is 1.1.4.</b> In this version</p>
<ul>
<li> <a
href="Documentation.htm#Conf">Accepting RELATED connections
is now optional.</a></li>
<li>Corrected problem where if
"shorewall start" aborted early (due to kernel configuration
errors for example), superfluous 'sed' error messages
were reported.</li>
<li>Corrected rules generated for
port redirection.</li>
<li>The order in which iptables
kernel modules are loaded has been corrected (Thanks
to Mark Pavlidis).<2E></li>
</ul>
<p><b>4/28/2001 - The current version of Shorewall is 1.1.3.</b> In this version</p>
<ul>
<li>Correct message issued when
Proxy ARP address added (Thanks to Jason Kirtland).</li>
<li>/tmp/shorewallpolicy-$$ is
now removed if there is an error while starting the firewall.</li>
<li>/etc/shorewall/icmp.def and
/etc/shorewall/common.def are now used to define the
icmpdef and common chains unless overridden by the presence
of /etc/shorewall/icmpdef or /etc/shorewall/common.</li>
<li>In the .lrp, the file /var/lib/lrpkg/shorwall.conf
has been corrected. An extra space after "/etc/shorwall/policy"
has been removed and "/etc/shorwall/rules" has been added.</li>
<li>When a sub-shell encounters
a fatal error and has stopped the firewall, it now kills
the main shell so that the main shell will not continue.</li>
<li>A problem has been corrected
where a sub-shell stopped the firewall and main shell
continued resulting in a perplexing error message referring
to "common.so" resulted.</li>
<li>Previously, placing "-" in
the PORT(S) column in /etc/shorewall/rules resulted in
an error message during start. This has been corrected.</li>
<li>The first line of "install.sh"
has been corrected -- I had inadvertently deleted the
initial "#".</li>
</ul>
<p><b>4/12/2001 - The current version of Shorewall is 1.1.2.</b> In this version</p>
<ul>
<li>Port redirection now works
again.</li>
<li>The icmpdef and common chains
<a href="Documentation.htm#Icmpdef">may now be user-defined</a>.</li>
<li>The firewall no longer fails
to start if "routefilter" is specified for an interface
that isn't started. A warning message is now issued
in this case.</li>
<li>The LRP Version is renamed
"shorwall" for 8,3 MSDOS file system compatibility.</li>
<li>A couple of LRP-specific problems
were corrected.</li>
</ul>
<p><b>4/8/2001 - Shorewall is now affiliated with the <a
href="http://leaf.sourceforge.net">Leaf Project</a> </b> <a
href="http://leaf.sourceforge.net"> <img border="0"
src="images/leaflogo.gif" width="49" height="36">
</a></p>
<p><b>4/5/2001 - The current version of Shorewall is 1.1.1. In this version:</b></p>
<ul>
<li>The common chain is traversed
from INPUT, OUTPUT and FORWARD before logging occurs</li>
<li>The source has been cleaned
up dramatically</li>
<li>DHCP DISCOVER packets with
RFC1918 source addresses no longer generate log messages.
Linux DHCP clients generate such packets and it's
annoying to see them logged.<2E></li>
</ul>
<p><b>3/25/2001 - The current version of Shorewall is 1.1.0. In this version:</b></p>
<ul>
<li>Log messages now indicate the
packet disposition.</li>
<li>Error messages have been improved.</li>
<li>The ability to define zones
consisting of an enumerated set of hosts and/or subnetworks
has been added.</li>
<li>The zone-to-zone chain matrix
is now sparse so that only those chains that contain
meaningful rules are defined.</li>
<li>240.0.0.0/4 and 169.254.0.0/16
have been added to the source subnetworks whose packets
are dropped under the <i>norfc1918</i> interface
option.</li>
<li>Exits are now provided for
executing an user-defined script when a chain is
defined, when the firewall is initialized, when the firewall
is started, when the firewall is stopped and when the
firewall is cleared.</li>
<li>The Linux kernel's route filtering
facility can now be specified selectively on network
interfaces.</li>
</ul>
<p><b>3/19/2001 - The current version of Shorewall is 1.0.4. This version:</b></p>
<ul>
<li>Allows user-defined zones.
Shorewall now has only one pre-defined zone (fw)
with the remaining zones being defined in the new configuration
file /etc/shorewall/zones. The /etc/shorewall/zones
file released in this version provides behavior that
is compatible with Shorewall 1.0.3.<2E></li>
<li>Adds the ability to specify
logging in entries in the /etc/shorewall/rules file.</li>
<li>Correct handling of the icmp-def
chain so that only ICMP packets are sent through
the chain.</li>
<li>Compresses the output of "shorewall
monitor" if awk is installed. Allows the command to work
if awk isn't installed (although it's not pretty).</li>
</ul>
<p><b>3/13/2001 - The current version of Shorewall is 1.0.3. This is a bug-fix
release with no new features.</b></p>
<ul>
<li>The PATH variable in the firewall
script now includes /usr/local/bin and /usr/local/sbin.</li>
<li>DMZ-related chains are now
correctly deleted if the DMZ is deleted.</li>
<li>The interface OPTIONS for "gw"
interfaces are no longer ignored.</li>
</ul>
<p><b>3/8/2001 - The current version of Shorewall is 1.0.2. It supports an
additional "gw" (gateway) zone for tunnels and it supports
IPSEC tunnels with end-points on the firewall. There is
also a .lrp available now.</b></p>
<p><font size="2">Updated 2/4/2003 - <a href="support.htm">Tom Eastep</a>
</font></p>
<p><a href="copyright.htm"><font size="2"> Copyright</font> <20> <font
size="2">2001, 2002 Thomas M. Eastep.</font></a><br>
</p>
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