<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <article id="shorewall_features"> <!--$Id$--> <articleinfo> <title>Shorewall Features</title> <author> <firstname>Tom</firstname> <surname>Eastep</surname> </author> <pubdate><?dbtimestamp format="Y/m/d"?></pubdate> <copyright> <year>2001-2007</year> <holder>Thomas M Eastep</holder> </copyright> <legalnotice> <para>Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover, and with no Back-Cover Texts. A copy of the license is included in the section entitled <quote><ulink url="GnuCopyright.htm">GNU Free Documentation License</ulink></quote>.</para> </legalnotice> </articleinfo> <caution> <para><emphasis role="bold">This article applies to Shorewall 3.0 and later. If you are running a version of Shorewall earlier than Shorewall 3.0.0 then please see the documentation for that release.</emphasis></para> </caution> <section id="Features"> <title>Features</title> <itemizedlist> <listitem> <para>Uses Netfilter's connection tracking facilities for stateful packet filtering.</para> </listitem> <listitem> <para>Can be used in<emphasis role="bold"> a wide range of router/firewall/gateway applications</emphasis> .</para> <itemizedlist> <listitem> <para>Completely customizable using configuration files.</para> </listitem> <listitem> <para>No limit on the number of network interfaces.</para> </listitem> <listitem> <para>Allows you to partition the network into <ulink url="manpages/shorewall-zones.html">zones</ulink> and gives you complete control over the connections permitted between each pair of zones.</para> </listitem> <listitem> <para>Multiple interfaces per zone and multiple zones per interface permitted.</para> </listitem> <listitem> <para>Supports nested and overlapping zones.</para> </listitem> </itemizedlist> </listitem> <listitem> <para><ulink url="shorewall_quickstart_guide.htm">QuickStart Guides (HOWTOs)</ulink> to help get your first firewall up and running quickly</para> </listitem> <listitem> <para>A <emphasis role="bold">GUI</emphasis> is available via Webmin 1.060 and later (<ulink url="http://www.webmin.com">http://www.webmin.com</ulink>)</para> </listitem> <listitem> <para>Extensive <emphasis role="bold"><ulink url="Documentation_Index.html">documentation</ulink></emphasis> is available in both Docbook XML and HTML formats.</para> </listitem> <listitem> <para><emphasis role="bold">Flexible address management/routing support</emphasis> (and you can use all types in the same firewall):</para> <itemizedlist> <listitem> <para><ulink url="manpages/shorewall-masq.html">Masquerading/SNAT</ulink>.</para> </listitem> <listitem> <para><ulink url="FAQ.htm#faq1">Port Forwarding (DNAT)</ulink>.</para> </listitem> <listitem> <para><ulink url="NAT.htm">One-to-one NAT</ulink>.</para> </listitem> <listitem> <para><ulink url="ProxyARP.htm">Proxy ARP</ulink>.</para> </listitem> <listitem> <para><ulink url="netmap.html">NETMAP</ulink> (requires a 2.6 kernel or a patched 2.4 kernel).</para> </listitem> <listitem> <para><ulink url="Shorewall_and_Routing.html">Multiple ISP support</ulink></para> </listitem> </itemizedlist> </listitem> <listitem> <para><ulink role="bold" url="blacklisting_support.htm"><emphasis role="bold">Blacklisting</emphasis></ulink> of individual IP addresses and subnetworks is supported.</para> </listitem> <listitem> <para><ulink url="starting_and_stopping_shorewall.htm">Operational Support</ulink>.</para> <itemizedlist> <listitem> <para>Commands to start, stop and clear the firewall</para> </listitem> <listitem> <para>Supports status monitoring with an audible alarm when an <quote>interesting</quote> packet is detected.</para> </listitem> <listitem> <para>Wide variety of informational commands.</para> </listitem> </itemizedlist> </listitem> <listitem> <para><emphasis role="bold">VPN Support</emphasis>.</para> <itemizedlist> <listitem> <para><ulink url="manpages/shorewall-tunnels.html">IPSEC, GRE, IPIP and OpenVPN Tunnels</ulink>.</para> </listitem> <listitem> <para><ulink url="PPTP.htm">PPTP</ulink> clients and Servers.</para> </listitem> </itemizedlist> </listitem> <listitem> <para>Support for <ulink url="traffic_shaping.htm"><emphasis role="bold">Traffic</emphasis> Control/<emphasis role="bold">Shaping</emphasis></ulink>.</para> </listitem> <listitem> <para>Wide support for different <emphasis role="bold">GNU/Linux Distributions</emphasis>.</para> <itemizedlist> <listitem> <para><ulink url="Install.htm#Install_RPM">RPM</ulink> and <ulink url="http://idea.sec.dico.unimi.it/%7Elorenzo/index.html#Debian">Debian</ulink> packages available.</para> </listitem> <listitem> <para>Includes automated <ulink url="Install.htm">install, upgrade, fallback and uninstall facilities</ulink> for users who can't use or choose not to use the RPM or Debian packages.</para> </listitem> <listitem> <para>Included as a standard part of <ulink url="http://leaf.sourceforge.net/devel/jnilo">LEAF/Bering</ulink> (router/firewall on a floppy, CD or compact flash).</para> </listitem> </itemizedlist> </listitem> <listitem> <para><ulink url="MAC_Validation.html">Media Access Control (<emphasis role="bold">MAC</emphasis>) Address <emphasis role="bold">Verification</emphasis></ulink>.</para> </listitem> <listitem> <para><emphasis role="bold"><ulink url="Accounting.html">Traffic Accounting</ulink>.</emphasis></para> </listitem> <listitem> <para><ulink url="bridge-Shorewall-perl.html"><emphasis role="bold">Bridge</emphasis>/Firewall support</ulink></para> </listitem> </itemizedlist> </section> </article>