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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Shorewall News</title>
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<h1 align="center"><font color="#ffffff">Shorewall News Archive</font></h1>
</td>
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</table>
<p><b>1/18/2002 - 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="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<EFBFBD>
<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 1/18/2003 - <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>
<br>
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