shorewall_code/Shorewall6/manpages/shorewall6.xml

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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
<refentry>
  <refmeta>
    <refentrytitle>shorewall6</refentrytitle>

    <manvolnum>8</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>shorewall6</refname>

    <refpurpose>Administration tool for Shoreline Firewall 6
    (Shorewall6)</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg rep="norepeat">-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>add {</option></arg>

      <arg choice="plain"
      rep="repeat"><replaceable>interface</replaceable>[:<replaceable>host-list</replaceable>]</arg>

      <arg choice="plain"><replaceable>zone | zone host-list
      </replaceable><option>}</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>allow</option></arg>

      <arg choice="plain"><replaceable>address</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>check | ck </option></arg>

      <arg><option>-e</option></arg>

      <arg><option>-d</option></arg>

      <arg><option>-p</option></arg>

      <arg><option>-r</option></arg>

      <arg><option>-T</option></arg>

      <arg><replaceable>directory</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>clear</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>compile | co </option></arg>

      <arg><option>-e</option></arg>

      <arg><option>-d</option></arg>

      <arg><option>-T</option></arg>

      <arg><replaceable>directory</replaceable></arg>

      <arg choice="opt"><replaceable>pathname</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg rep="norepeat">-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>delete {</option></arg>

      <arg choice="plain"
      rep="repeat"><replaceable>interface</replaceable>[:<replaceable>host-list</replaceable>]</arg>

      <arg choice="plain"><replaceable>zone | zone host-list
      </replaceable><option>}</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>disable</option></arg>

      <arg choice="plain">{ <replaceable>interface</replaceable> |
      <replaceable>provider</replaceable> }</arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>drop</option></arg>

      <arg choice="plain"><replaceable>address</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>dump</option></arg>

      <arg><option>-x</option></arg>

      <arg><option>-l</option></arg>

      <arg><option>-m</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>enable</option></arg>

      <arg choice="plain">{ <replaceable>interface</replaceable> |
      <replaceable>provider</replaceable> }</arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>export</option></arg>

      <arg choice="opt"><replaceable>directory1</replaceable></arg>

      <arg
      choice="plain">[<replaceable>user</replaceable>@]<replaceable>system</replaceable>[<option>:</option><replaceable>directory2</replaceable>]</arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>forget</option></arg>

      <arg><replaceable>filename</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>help</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>iptrace</option></arg>

      <arg choice="plain"><replaceable>iptables match
      expression</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>load</option></arg>

      <arg><option>-s</option></arg>

      <arg><option>-c</option></arg>

      <arg><option>-r</option> <replaceable>root-user-name</replaceable></arg>

      <arg><option>-T</option></arg>

      <arg><replaceable>directory</replaceable></arg>

      <arg choice="plain"><replaceable>system</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>logdrop</option></arg>

      <arg choice="plain"><replaceable>address</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>logwatch</option></arg>

      <arg><option>-m</option></arg>

      <arg><replaceable>refresh-interval</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>logreject</option></arg>

      <arg choice="plain"><replaceable>address</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>noiptrace</option></arg>

      <arg choice="plain"><replaceable>iptables match
      expression</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg
      choice="plain"><option>refresh</option><arg><option>-n</option></arg><arg><option>-d</option></arg><arg><option>-T</option></arg><arg>-<option>D</option>
      <replaceable>directory</replaceable> </arg><arg
      rep="repeat"><replaceable>chain</replaceable></arg></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>reject</option></arg>

      <arg choice="plain"><replaceable>address</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>reload</option></arg>

      <arg><option>-s</option></arg>

      <arg><option>-c</option></arg>

      <arg><option>-r</option> <replaceable>root-user-name</replaceable></arg>

      <arg><option>-T</option></arg>

      <arg><replaceable>directory</replaceable></arg>

      <arg choice="plain"><replaceable>system</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>reset</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>restart</option></arg>

      <arg><option>-n</option></arg>

      <arg><option>-f</option></arg>

      <arg><option>-c</option></arg>

      <arg><option>-T</option></arg>

      <arg><replaceable>directory</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>restore</option></arg>

      <arg><replaceable>filename</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>safe-restart</option></arg>

      <arg><option>-d</option></arg>

      <arg><option>-t</option> <replaceable>timeout</replaceable></arg>

      <arg><replaceable>directory</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>safe-start</option></arg>

      <arg><option>-d</option></arg>

      <arg><option>-t</option> <replaceable>timeout</replaceable></arg>

      <arg><replaceable>directory</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>save</option></arg>

      <arg choice="opt"><replaceable>filename</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>show | list | ls </option></arg>

      <arg><option>-b</option></arg>

      <arg><option>-x</option></arg>

      <arg><option>-l</option></arg>

      <arg><option>-t</option>
      {<option>filter</option>|<option>mangle</option>|<option>raw</option>}</arg>

      <arg><arg><option>chain</option></arg><arg choice="plain"
      rep="repeat"><replaceable>chain</replaceable></arg></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>show | list | ls </option></arg>

      <arg><option>-f</option></arg>

      <arg choice="plain"><option>capabilities</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>show | list | ls </option></arg>

      <arg
      choice="req"><option>actions|classifiers|connections|config|events|filters|ip|macros|zones|policies|tc|marks</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>show | list | ls </option></arg>

      <arg choice="plain"><option>event</option><arg
      choice="plain"><replaceable>event</replaceable></arg></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>show | list | ls </option></arg>

      <arg choice="plain"><option>tc</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="opt"><option>show | list | ls </option></arg>

      <arg><option>-m</option></arg>

      <arg choice="plain"><option>log</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>start</option></arg>

      <arg><option>-n</option></arg>

      <arg><option>-f</option></arg>

      <arg><option>-c</option></arg>

      <arg><option>-T</option></arg>

      <arg><replaceable>directory</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>stop</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>status</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg
      choice="opt"><option>trace</option>|<option>debug</option><arg><option>nolock</option></arg></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>try</option></arg>

      <arg choice="plain"><replaceable>directory</replaceable></arg>

      <arg><replaceable>timeout</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>update</option></arg>

      <arg><option>-b</option></arg>

      <arg><option>-d</option></arg>

      <arg><option>-r</option></arg>

      <arg><option>-T</option></arg>

      <arg><option>-a</option></arg>

      <arg><option>-D</option></arg>

      <arg><replaceable>directory</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall6</command>

      <arg choice="opt"><option>trace</option>|<option>debug</option></arg>

      <arg>-<replaceable>options</replaceable></arg>

      <arg
      choice="plain"><option>version</option><arg><option>-a</option></arg></arg>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para>The shorewall6 utility is used to control the Shoreline Firewall 6
    (Shorewall6).</para>
  </refsect1>

  <refsect1>
    <title>Options</title>

    <para>The <option>trace</option> and <option>debug</option> options are
    used for debugging. See <ulink
    url="http://www.shorewall.net/starting_and_stopping_shorewall.htm#Trace">http://www.shorewall.net/starting_and_stopping_shorewall.htm#Trace</ulink>.</para>

    <para>The nolock <option>option</option> prevents the command from
    attempting to acquire the Shorewall6 lockfile. It is useful if you need to
    include <command>shorewall6</command> commands in
    <filename>/etc/shorewall6/started</filename>.</para>

    <para>The <emphasis>options</emphasis> control the amount of output that
    the command produces. They consist of a sequence of the letters <emphasis
    role="bold">v</emphasis> and <emphasis role="bold">q</emphasis>. If the
    options are omitted, the amount of output is determined by the setting of
    the VERBOSITY parameter in <ulink
    url="shorewall6.conf.html">shorewall6.conf</ulink>(5). Each <emphasis
    role="bold">v</emphasis> adds one to the effective verbosity and each
    <emphasis role="bold">q</emphasis> subtracts one from the effective
    VERBOSITY. Alternatively, <emphasis role="bold">v</emphasis> may be
    followed immediately with one of -1,0,1,2 to specify a specify VERBOSITY.
    There may be no white-space between <emphasis role="bold">v</emphasis> and
    the VERBOSITY.</para>

    <para>The <emphasis>options</emphasis> may also include the letter
    <option>t</option> which causes all progress messages to be
    timestamped.</para>
  </refsect1>

  <refsect1>
    <title>Commands</title>

    <para>The available commands are listed below.</para>

    <variablelist>
      <varlistentry>
        <term><emphasis role="bold">add</emphasis></term>

        <listitem>
          <para>Added in Shorewall 4.4.21. Adds a list of hosts or subnets to
          a dynamic zone usually used with VPN's.</para>

          <para>The <emphasis>interface</emphasis> argument names an interface
          defined in the <ulink
          url="shorewall6-interfaces.html">shorewall6-interfaces</ulink>(5)
          file. A <emphasis>host-list</emphasis> is comma-separated list whose
          elements are host or network addresses.<caution>
              <para>The <command>add</command> command is not very robust. If
              there are errors in the <replaceable>host-list</replaceable>,
              you may see a large number of error messages yet a subsequent
              <command>shorewall show zones</command> command will indicate
              that all hosts were added. If this happens, replace
              <command>add</command> by <command>delete</command> and run the
              same command again. Then enter the correct command.</para>
            </caution></para>

          <para>Beginning with Shorewall 4.5.9, the <emphasis
          role="bold">dynamic_shared</emphasis> zone option (<ulink
          url="shorewall6-zones.html">shorewall6-zones</ulink>(5)) allows a
          single ipset to handle entries for multiple interfaces. When that
          option is specified for a zone, the <command>add</command> command
          has the alternative syntax in which the
          <replaceable>zone</replaceable> name precedes the
          <replaceable>host-list</replaceable>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">allow</emphasis></term>

        <listitem>
          <para>Re-enables receipt of packets from hosts previously
          blacklisted by a <emphasis role="bold">drop</emphasis>, <emphasis
          role="bold">logdrop</emphasis>, <emphasis
          role="bold">reject</emphasis>, or <emphasis
          role="bold">logreject</emphasis> command.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">check</emphasis></term>

        <listitem>
          <para>Compiles the configuration in the specified
          <emphasis>directory</emphasis> and discards the compiled output
          script. If no <emphasis>directory</emphasis> is given, then
          /etc/shorewall6 is assumed.</para>

          <para>The <emphasis role="bold">-e</emphasis> option causes the
          compiler to look for a file named capabilities. This file is
          produced using the command <emphasis role="bold">shorewall6-lite
          show -f capabilities &gt; capabilities</emphasis> on a system with
          Shorewall6 Lite installed.</para>

          <para>The <option>-d</option> option causes the compiler to be run
          under control of the Perl debugger.</para>

          <para>The <option>-p</option> option causes the compiler to be
          profiled via the Perl <option>-wd:DProf</option> command-line
          option.</para>

          <para>The <option>-r</option> option was added in Shorewall 4.5.2
          and causes the compiler to print the generated ruleset to standard
          out.</para>

          <para>The <option>-T</option> option was added in Shorewall 4.4.20
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">clear</emphasis></term>

        <listitem>
          <para>Clear will remove all rules and chains installed by
          Shorewall6. The firewall is then wide open and unprotected. Existing
          connections are untouched. Clear is often used to see if the
          firewall is causing connection problems.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">compile</emphasis></term>

        <listitem>
          <para>Compiles the current configuration into the executable file
          <emphasis>pathname</emphasis>. If a directory is supplied,
          Shorewall6 will look in that directory first for configuration
          files. If the <emphasis>pathname</emphasis> is omitted, the file
          firewall in the VARDIR (normally <filename
          class="directory">/var/lib/shorewall/</filename>) is assumed. A
          <emphasis>pathname</emphasis> of '-' causes the compiler to send the
          generated script to it's standard output file. Note that '-v-1' is
          usually specified in this case (e.g., <command>shorewall6 -v-1
          compile -- -</command>) to suppress the 'Compiling...' message
          normally generated by <filename>/sbin/shorewall6</filename>.</para>

          <para>When -e is specified, the compilation is being performed on a
          system other than where the compiled script will run. This option
          disables certain configuration options that require the script to be
          compiled where it is to be run. The use of -e requires the presence
          of a configuration file named <filename>capabilities</filename>
          which may be produced using the command <emphasis
          role="bold">shorewall6-lite show -f capabilities &gt;
          capabilities</emphasis> on a system with Shorewall6 Lite
          installed.</para>

          <para>The <emphasis role="bold">-c</emphasis> option was added in
          Shorewall 4.5.17 and causes conditional compilation of a script. The
          script specified by <replaceable>pathname</replaceable> (or implied
          if <emphasis role="bold">pathname</emphasis> is omitted) is compiled
          if it doesn't exist or if there is any file in the
          <replaceable>directory</replaceable> or in a directory on the
          CONFIG_PATH that has a modification time later than the file to be
          compiled. When no compilation is needed, a message is issued and an
          exit status of zero is returned.</para>

          <para>The <option>-d</option> option causes the compiler to be run
          under control of the Perl debugger.</para>

          <para>The <option>-p</option> option causes the compiler to be
          profiled via the Perl <option>-wd:DProf</option> command-line
          option.</para>

          <para>The <option>-T</option> option was added in Shorewall 4.4.20
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">delete</emphasis></term>

        <listitem>
          <para>Added in Shorewall 4.4.21. The delete command reverses the
          effect of an earlier <emphasis role="bold">add</emphasis>
          command.</para>

          <para>The <emphasis>interface</emphasis> argument names an interface
          defined in the <ulink
          url="shorewall6-interfaces.html">shorewall6-interfaces</ulink>(5)
          file. A <emphasis>host-list</emphasis> is comma-separated list whose
          elements are a host or network address.</para>

          <para>Beginning with Shorewall 4.5.9, the <emphasis
          role="bold">dynamic_shared</emphasis> zone option (<ulink
          url="shorewall6-zones.html">shorewall6-zones</ulink>(5)) allows a
          single ipset to handle entries for multiple interfaces. When that
          option is specified for a zone, the <command>delete</command>
          command has the alternative syntax in which the
          <replaceable>zone</replaceable> name precedes the
          <replaceable>host-list</replaceable>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">disable</emphasis></term>

        <listitem>
          <para>Added in Shorewall 4.4.26. Disables the optional provider
          associated with the specified <replaceable>interface</replaceable>
          or <replaceable>provider</replaceable>. Where more than one provider
          share a single network interface, a
          <replaceable>provider</replaceable> name must be given.</para>

          <para>Beginning with Shorewall 4.5.10, this command may be used with
          any optional network interface. <replaceable>interface</replaceable>
          may be either the logical or physical name of the interface. The
          command removes any routes added from <ulink
          url="shorewall6-routes.html">shorewall6-routes</ulink>(5) and any
          traffic shaping configuration for the interface.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">drop</emphasis></term>

        <listitem>
          <para>Causes traffic from the listed <emphasis>address</emphasis>es
          to be silently dropped.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">dump</emphasis></term>

        <listitem>
          <para>Produces a verbose report about the firewall configuration for
          the purpose of problem analysis.</para>

          <para>The <emphasis role="bold">-x</emphasis> option causes actual
          packet and byte counts to be displayed. Without that option, these
          counts are abbreviated. The <emphasis role="bold">-m</emphasis>
          option causes any MAC addresses included in Shorewall6 log messages
          to be displayed.</para>

          <para>The <emphasis role="bold">-l</emphasis> option causes the rule
          number for each Netfilter rule to be displayed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">enable</emphasis></term>

        <listitem>
          <para>Added in Shorewall 4.4.26. Enables the optional provider
          associated with the specified <replaceable>interface</replaceable>
          or <replaceable>provider</replaceable>. Where more than one provider
          share a single network interface, a
          <replaceable>provider</replaceable> name must be given.</para>

          <para>Beginning with Shorewall 4.5.10, this command may be used with
          any optional network interface. <replaceable>interface</replaceable>
          may be either the logical or physical name of the interface. The
          command sets <filename>/proc</filename> entries for the interface,
          adds any route specified in <ulink
          url="shorewall6-routes.html">shorewall6-routes</ulink>(5) and
          installs the interface's traffic shaping configuration, if
          any.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">export</emphasis></term>

        <listitem>
          <para>If <emphasis>directory1</emphasis> is omitted, the current
          working directory is assumed.</para>

          <para>Allows a non-root user to compile a shorewall6 script and
          stage it on a system (provided that the user has access to the
          system via ssh). The command is equivalent to:</para>

          <programlisting>    <emphasis role="bold">/sbin/shorewall6 compile -e</emphasis> <emphasis>directory1</emphasis> <emphasis>directory1</emphasis><emphasis
              role="bold">/firewall &amp;&amp;\</emphasis>
    <emphasis role="bold">scp</emphasis> directory1<emphasis role="bold">/firewall</emphasis> <emphasis>directory1</emphasis><emphasis
              role="bold">/firewall.conf</emphasis> [<emphasis>user</emphasis>@]<emphasis
              role="bold">system</emphasis>:[<emphasis>directory2</emphasis>]</programlisting>

          <para>In other words, the configuration in the specified (or
          defaulted) directory is compiled to a file called firewall in that
          directory. If compilation succeeds, then firewall and firewall.conf
          are copied to <emphasis>system</emphasis> using scp.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">forget</emphasis></term>

        <listitem>
          <para>Deletes /var/lib/shorewall6/<emphasis>filename</emphasis> and
          /var/lib/shorewall6/save. If no <emphasis>filename</emphasis> is
          given then the file specified by RESTOREFILE in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5) is
          assumed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">help</emphasis></term>

        <listitem>
          <para>Displays a syntax summary.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">iptrace</emphasis></term>

        <listitem>
          <para>This is a low-level debugging command that causes iptables
          TRACE log records to be created. See ip6tables(8) for
          details.</para>

          <para>The <replaceable>ip6tables match expression</replaceable> must
          be one or more matches that may appear in both the raw table OUTPUT
          and raw table PREROUTING chains.</para>

          <para>The trace records are written to the kernel's log buffer with
          facility = kernel and priority = warning, and they are routed from
          there by your logging daemon (syslogd, rsyslog, syslog-ng, ...) --
          Shorewall has no control over where the messages go; consult your
          logging daemon's documentation.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">load</emphasis></term>

        <listitem>
          <para>If <emphasis>directory</emphasis> is omitted, the current
          working directory is assumed. Allows a non-root user to compile a
          shorewall6 script and install it on a system (provided that the user
          has root access to the system via ssh). The command is equivalent
          to:</para>

          <programlisting>    <emphasis role="bold">/sbin/shorewall6 compile -e</emphasis> <emphasis><replaceable>directory</replaceable></emphasis> <replaceable>directory</replaceable><emphasis
              role="bold">/firewall &amp;&amp;\</emphasis>
    <emphasis role="bold">scp</emphasis> <emphasis>directory</emphasis><emphasis
              role="bold">/firewall</emphasis> <emphasis>directory</emphasis><emphasis
              role="bold">/firewall.conf</emphasis> <emphasis role="bold">root@</emphasis><replaceable>system</replaceable><emphasis
              role="bold">:/var/lib/shorewall6-lite/ &amp;&amp;\</emphasis>
    <emphasis role="bold">ssh root@</emphasis><replaceable>system</replaceable> <emphasis
              role="bold">'/sbin/shorewall6-lite start'</emphasis></programlisting>

          <para>In other words, the configuration in the specified (or
          defaulted) directory is compiled to a file called firewall in that
          directory. If compilation succeeds, then firewall is copied to
          <replaceable>system</replaceable> using scp. If the copy succeeds,
          Shorewall6 Lite on <replaceable>system</replaceable> is started via
          ssh.</para>

          <para>If <emphasis role="bold">-s</emphasis> is specified and the
          <emphasis role="bold">start</emphasis> command succeeds, then the
          remote Shorewall6-lite configuration is saved by executing <emphasis
          role="bold">shorewall6-lite save</emphasis> via ssh.</para>

          <para>if <emphasis role="bold">-c</emphasis> is included, the
          command <emphasis role="bold">shorewall6-lite show capabilities -f
          &gt; /var/lib/shorewall6-lite/capabilities</emphasis> is executed
          via ssh then the generated file is copied to
          <replaceable>directory</replaceable> using scp. This step is
          performed before the configuration is compiled.</para>

          <para>If <option>-r</option> is included, it specifies that the root
          user on <replaceable>system</replaceable> is named
          <replaceable>root-user-name</replaceable> rather than "root".</para>

          <para>The <option>-T</option> option was added in Shorewall 4.5.3
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">logdrop</emphasis></term>

        <listitem>
          <para>Causes traffic from the listed <emphasis>address</emphasis>es
          to be logged then discarded. Logging occurs at the log level
          specified by the BLACKLIST_LOGLEVEL setting in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink> (5).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">logwatch</emphasis></term>

        <listitem>
          <para>Monitors the log file specified by the LOGFILE option in
          <ulink url="shorewall6.conf.html">shorewall6.conf</ulink>(5) and
          produces an audible alarm when new Shorewall6 messages are logged.
          The <emphasis role="bold">-m</emphasis> option causes the MAC
          address of each packet source to be displayed if that information is
          available. The <replaceable>refresh-interval</replaceable> specifies
          the time in seconds between screen refreshes. You can enter a
          negative number by preceding the number with "--" (e.g.,
          <command>shorewall6 logwatch -- -30</command>). In this case, when a
          packet count changes, you will be prompted to hit any key to resume
          screen refreshes.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">logreject</emphasis></term>

        <listitem>
          <para>Causes traffic from the listed <emphasis>address</emphasis>es
          to be logged then rejected. Logging occurs at the log level
          specified by the BLACKLIST_LOGLEVEL setting in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink> (5).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">noiptrace</emphasis></term>

        <listitem>
          <para>This is a low-level debugging command that cancels a trace
          started by a preceding <command>iptrace</command> command.</para>

          <para>The <replaceable>iptables match expression</replaceable> must
          be one given in the <command>iptrace</command> command being
          canceled.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">refresh</emphasis></term>

        <listitem>
          <para>All steps performed by <command>restart</command> are
          performed by <command>refresh</command> with the exception that
          <command>refresh</command> only recreates the chains specified in
          the command while <command>restart</command> recreates the entire
          Netfilter ruleset.When no chain name is given to the <emphasis
          role="bold">refresh</emphasis> command, the mangle table is
          refreshed along with the blacklist chain (if any). This allows you
          to modify <filename>/etc/shorewall6/tcrules</filename>and install
          the changes using <emphasis role="bold">refresh</emphasis>.</para>

          <para>The listed chains are assumed to be in the filter table. You
          can refresh chains in other tables by prefixing the chain name with
          the table name followed by ":" (e.g., nat:net_dnat). Chain names
          which follow are assumed to be in that table until the end of the
          list or until an entry in the list names another table. Built-in
          chains such as FORWARD may not be refreshed.</para>

          <para>The <option>-n</option> option was added in Shorewall 4.5.3
          causes Shorewall to avoid updating the routing table(s).</para>

          <para>The <option>-d </option>option was added in Shorewall 4.5.3
          causes the compiler to run under the Perl debugger.</para>

          <para>The <option>-T</option> option was added in Shorewall 4.5.3
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>

          <para>The -<option>D</option> option was added in Shorewall 4.5.3
          and causes Shorewall to look in the given
          <emphasis>directory</emphasis> first for configuration files.</para>

          <para>Example:<programlisting><command>shorewall6 refresh net2fw nat:net_dnat</command> #Refresh the 'net2loc' chain in the filter table and the 'net_dnat' chain in the nat table</programlisting></para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">reload</emphasis></term>

        <listitem>
          <para>If <emphasis>directory</emphasis> is omitted, the current
          working directory is assumed. Allows a non-root user to compile a
          shorewall6 script and install it on a system (provided that the user
          has root access to the system via ssh). The command is equivalent
          to:</para>

          <programlisting>    <emphasis role="bold">/sbin/shorewall6 compile -e</emphasis> <emphasis>directory</emphasis> <emphasis>directory</emphasis><emphasis
              role="bold">/firewall &amp;&amp;\</emphasis>
    <emphasis role="bold">scp</emphasis> <emphasis>directory</emphasis><emphasis
              role="bold">/firewall</emphasis> <emphasis>directory</emphasis><emphasis
              role="bold">/firewall.conf</emphasis> <emphasis role="bold">root@</emphasis><emphasis>system</emphasis><emphasis
              role="bold">:/var/lib/shorewall6-lite/ &amp;&amp;\</emphasis>
    <emphasis role="bold">ssh root@</emphasis><emphasis>system</emphasis> <emphasis
              role="bold">'/sbin/shorewall6-lite restart'</emphasis></programlisting>

          <para>In other words, the configuration in the specified (or
          defaulted) directory is compiled to a file called firewall in that
          directory. If compilation succeeds, then firewall is copied to
          <emphasis>system</emphasis> using scp. If the copy succeeds,
          Shorewall6 Lite on <emphasis>system</emphasis> is restarted via
          ssh.</para>

          <para>If <emphasis role="bold">-s</emphasis> is specified and the
          <emphasis role="bold">restart</emphasis> command succeeds, then the
          remote Shorewall6-lite configuration is saved by executing <emphasis
          role="bold">shorewall6-lite save</emphasis> via ssh.</para>

          <para>if <emphasis role="bold">-c</emphasis> is included, the
          command <emphasis role="bold">shorewall6-lite show capabilities -f
          &gt; /var/lib/shorewall6-lite/capabilities</emphasis> is executed
          via ssh then the generated file is copied to
          <emphasis>directory</emphasis> using scp. This step is performed
          before the configuration is compiled.</para>

          <para>If <option>-r</option> is included, it specifies that the root
          user on <replaceable>system</replaceable> is named
          <replaceable>root-user-name</replaceable> rather than "root".</para>

          <para>The <option>-T</option> option was added in Shorewall 4.5.3
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">reset [<replaceable>chain</replaceable>,
        ...]</emphasis><acronym></acronym></term>

        <listitem>
          <para>Resets the packet and byte counters in the specified
          <replaceable>chain</replaceable>(s). If no
          <replaceable>chain</replaceable> is specified, all the packet and
          byte counters in the firewall are reset.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">restart</emphasis></term>

        <listitem>
          <para>Restart is similar to <emphasis role="bold">shorewall6
          start</emphasis> except that it assumes that the firewall is already
          started. Existing connections are maintained. If a
          <emphasis>directory</emphasis> is included in the command,
          Shorewall6 will look in that <emphasis>directory</emphasis> first
          for configuration files.</para>

          <para>The <option>-n</option> option causes Shorewall6 to avoid
          updating the routing table(s).</para>

          <para>The <option>-p</option> option causes the connection tracking
          table to be flushed; the <command>conntrack</command> utility must
          be installed to use this option.</para>

          <para>The <option>-d </option>option causes the compiler to run
          under the Perl debugger.</para>

          <para>The <option>-f</option> option suppresses the compilation step
          and simply reused the compiled script which last started/restarted
          Shorewall, provided that /etc/shorewall6 and its contents have not
          been modified since the last start/restart.</para>

          <para>The <option>-c</option> option was added in Shorewall 4.4.20
          and performs the compilation step unconditionally, overriding the
          AUTOMAKE setting in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5). When both
          <option>-f</option> and <option>-c </option>are present, the result
          is determined by the option that appears last.</para>

          <para>The <option>-T</option> option was added in Shorewall 4.5.3
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">restore</emphasis></term>

        <listitem>
          <para>Restore Shorewall6 to a state saved using the <emphasis
          role="bold">shorewall6 save</emphasis> command. Existing connections
          are maintained. The <emphasis>filename</emphasis> names a restore
          file in /var/lib/shorewall6 created using <emphasis
          role="bold">shorewall6 save</emphasis>; if no
          <emphasis>filename</emphasis> is given then Shorewall6 will be
          restored from the file specified by the RESTOREFILE option in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">safe-restart</emphasis></term>

        <listitem>
          <para>Only allowed if Shorewall6 is running. The current
          configuration is saved in /var/lib/shorewall6/safe-restart (see the
          save command below) then a <emphasis role="bold">shorewall6
          restart</emphasis> is done. You will then be prompted asking if you
          want to accept the new configuration or not. If you answer "n" or if
          you fail to answer within 60 seconds (such as when your new
          configuration has disabled communication with your terminal), the
          configuration is restored from the saved configuration. If a
          directory is given, then Shorewall6 will look in that directory
          first when opening configuration files.</para>

          <para>Beginning with Shorewall 4.5.0, you may specify a different
          <replaceable>timeout</replaceable> value using the
          <option>-t</option> option. The numeric
          <replaceable>timeout</replaceable> may optionally be followed by an
          <option>s</option>, <option>m</option> or <option>h</option> suffix
          (e.g., 5m) to specify seconds, minutes or hours respectively. If the
          suffix is omitted, seconds is assumed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">safe-start</emphasis></term>

        <listitem>
          <para>Shorewall6 is started normally. You will then be prompted
          asking if everything went all right. If you answer "n" or if you
          fail to answer within 60 seconds (such as when your new
          configuration has disabled communication with your terminal), a
          shorewall6 clear is performed for you. If a directory is given, then
          Shorewall6 will look in that directory first when opening
          configuration files.</para>

          <para>Beginning with Shorewall 4.5.0, you may specify a different
          <replaceable>timeout</replaceable> value using the
          <option>-t</option> option. The numeric
          <replaceable>timeout</replaceable> may optionally be followed by an
          <option>s</option>, <option>m</option> or <option>h</option> suffix
          (e.g., 5m) to specify seconds, minutes or hours respectively. If the
          suffix is omitted, seconds is assumed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">save</emphasis></term>

        <listitem>
          <para>The dynamic blacklist is stored in /var/lib/shorewall6/save.
          The state of the firewall is stored in
          /var/lib/shorewall6/<emphasis>filename</emphasis> for use by the
          <emphasis role="bold">shorewall6 restore</emphasis> and <emphasis
          role="bold">shorewall6 -f start</emphasis> commands. If
          <emphasis>filename</emphasis> is not given then the state is saved
          in the file specified by the RESTOREFILE option in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">show</emphasis></term>

        <listitem>
          <para>The show command can have a number of different
          arguments:</para>

          <variablelist>
            <varlistentry>
              <term><emphasis role="bold">actions</emphasis></term>

              <listitem>
                <para>Produces a report about the available actions (built-in,
                standard and user-defined).</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">capabilities</emphasis></term>

              <listitem>
                <para>Displays your kernel/ip6tables capabilities. The
                <emphasis role="bold">-f</emphasis> option causes the display
                to be formatted as a capabilities file for use with <emphasis
                role="bold">compile -e</emphasis>.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term>[ [ <option>chain</option> ] <emphasis>chain</emphasis>...
              ]</term>

              <listitem>
                <para>The rules in each <emphasis>chain</emphasis> are
                displayed using the <emphasis role="bold">ip6tables
                -L</emphasis> <emphasis>chain</emphasis> <emphasis
                role="bold">-n -v</emphasis> command. If no
                <emphasis>chain</emphasis> is given, all of the chains in the
                filter table are displayed. The <emphasis
                role="bold">-x</emphasis> option is passed directly through to
                ip6tables and causes actual packet and byte counts to be
                displayed. Without this option, those counts are abbreviated.
                The <emphasis role="bold">-t</emphasis> option specifies the
                Netfilter table to display. The default is <emphasis
                role="bold">filter</emphasis>.</para>

                <para>The <emphasis role="bold">-b</emphasis> ('brief') option
                causes rules which have not been used (i.e. which have zero
                packet and byte counts) to be omitted from the output. Chains
                with no rules displayed are also omitted from the
                output.</para>

                <para>The <emphasis role="bold">-l</emphasis> option causes
                the rule number for each Netfilter rule to be
                displayed.</para>

                <para>If the <emphasis role="bold">-t</emphasis> option and
                the <option>chain</option> keyword are both omitted and any of
                the listed <replaceable>chain</replaceable>s do not exist, a
                usage message is displayed.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis
              role="bold">classifiers|filters</emphasis></term>

              <listitem>
                <para>Displays information about the packet classifiers
                defined on the system as a result of traffic shaping
                configuration.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">config</emphasis></term>

              <listitem>
                <para>Displays distribution-specific defaults.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">connections</emphasis></term>

              <listitem>
                <para>Displays the IP connections currently being tracked by
                the firewall.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">event</emphasis><replaceable>
              event</replaceable></term>

              <listitem>
                <para>Added in Shorewall 4.5.19. Displays the named
                event.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">events</emphasis></term>

              <listitem>
                <para>Added in Shorewall 4.5.19. Displays all events.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">ip</emphasis></term>

              <listitem>
                <para>Displays the system's IPv6 configuration.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">log</emphasis></term>

              <listitem>
                <para>Displays the last 20 Shorewall6 messages from the log
                file specified by the LOGFILE option in <ulink
                url="shorewall6.conf.html">shorewall6.conf</ulink>(5). The
                <emphasis role="bold">-m</emphasis> option causes the MAC
                address of each packet source to be displayed if that
                information is available.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">macros</emphasis></term>

              <listitem>
                <para>Displays information about each macro defined on the
                firewall system.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">mangle</emphasis></term>

              <listitem>
                <para>Displays the Netfilter mangle table using the command
                <emphasis role="bold">ip6tables -t mangle -L -n
                -v</emphasis>.The <emphasis role="bold">-x</emphasis> option
                is passed directly through to ip6tables and causes actual
                packet and byte counts to be displayed. Without this option,
                those counts are abbreviated.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">marks</emphasis></term>

              <listitem>
                <para>Added in Shorewall 4.4.26. Displays the various fields
                in packet marks giving the min and max value (in both decimal
                and hex) and the applicable mask (in hex).</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">policies</emphasis></term>

              <listitem>
                <para>Added in Shorewall 4.4.4. Displays the applicable policy
                between each pair of zones. Note that implicit intrazone
                ACCEPT policies are not displayed for zones associated with a
                single network where that network doesn't specify
                <option>routeback</option>.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">Routing</emphasis></term>

              <listitem>
                <para>Displays the system's IPv6 routing configuration.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">tc</emphasis></term>

              <listitem>
                <para>Displays information about queuing disciplines, classes
                and filters.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">zones</emphasis></term>

              <listitem>
                <para>Displays the current composition of the Shorewall6 zones
                on the system.</para>
              </listitem>
            </varlistentry>
          </variablelist>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">start</emphasis></term>

        <listitem>
          <para>Start shorewall6. Existing connections through shorewall6
          managed interfaces are untouched. New connections will be allowed
          only if they are allowed by the firewall rules or policies. If a
          <replaceable>directory</replaceable> is included in the command,
          Shorewall6 will look in that <emphasis>directory</emphasis> first
          for configuration files. If <emphasis role="bold">-f</emphasis> is
          specified, the saved configuration specified by the RESTOREFILE
          option in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5) will be
          restored if that saved configuration exists and has been modified
          more recently than the files in /etc/shorewall6. When <emphasis
          role="bold">-f</emphasis> is given, a
          <replaceable>directory</replaceable> may not be specified.</para>

          <para>Update: In Shorewall6 4.4.20, a new LEGACY_FASTSTART option
          was added to <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5). When
          LEGACY_FASTSTART=No, the modification times of files in
          /etc/shorewall6 are compared with that of
          /var/lib/shorewall6/firewall (the compiled script that last
          started/restarted the firewall).</para>

          <para>The <option>-n</option> option causes Shorewall6 to avoid
          updating the routing table(s).</para>

          <para>The <option>-c</option> option was added in Shorewall 4.4.20
          and performs the compilation step unconditionally, overriding the
          AUTOMAKE setting in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5). When both
          <option>-f</option> and <option>-c </option>are present, the result
          is determined by the option that appears last.</para>

          <para>The <option>-T</option> option was added in Shorewall 4.5.3
          and causes a Perl stack trace to be included with each
          compiler-generated error and warning message.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">stop</emphasis></term>

        <listitem>
          <para>Stops the firewall. All existing connections, except those
          listed in <ulink
          url="shorewall6-routestopped.html">shorewall6-routestopped</ulink>(5)
          or permitted by the ADMINISABSENTMINDED option in <ulink
          url="shorewall6.conf.html">shorewall6.conf</ulink>(5), are taken
          down. The only new traffic permitted through the firewall is from
          systems listed in <ulink
          url="shorewall6-routestopped.html">shorewall6-routestopped</ulink>(5)
          or by ADMINISABSENTMINDED.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">status</emphasis></term>

        <listitem>
          <para>Produces a short report about the state of the
          Shorewall6-configured firewall.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">try</emphasis></term>

        <listitem>
          <para>If Shorewall6 is started then the firewall state is saved to a
          temporary saved configuration
          (<filename>/var/lib/shorewall6/.try</filename>). Next, if Shorewall6
          is currently started then a <emphasis role="bold">restart</emphasis>
          command is issued using the specified configuration
          <replaceable>directory</replaceable>; otherwise, a <emphasis
          role="bold">start</emphasis> command is performed using the
          specified configuration <replaceable>directory</replaceable>. if an
          error occurs during the compilation phase of the <emphasis
          role="bold">restart</emphasis> or <emphasis
          role="bold">start</emphasis>, the command terminates without
          changing the Shorewall6 state. If an error occurs during the
          <emphasis role="bold">restart</emphasis> phase, then a <emphasis
          role="bold">shorewall6 restore</emphasis> is performed using the
          saved configuration. If an error occurs during the <emphasis
          role="bold">start</emphasis> phase, then Shorewall6 is cleared. If
          the <emphasis role="bold">start</emphasis>/<emphasis
          role="bold">restart</emphasis> succeeds and a
          <replaceable>timeout</replaceable> is specified then a <emphasis
          role="bold">clear</emphasis> or <emphasis
          role="bold">restore</emphasis> is performed after
          <replaceable>timeout</replaceable> seconds.</para>

          <para>Beginning with Shorewall 4.5.0, the numeric
          <replaceable>timeout</replaceable> may optionally be followed by an
          <option>s</option>, <option>m</option> or <option>h</option> suffix
          (e.g., 5m) to specify seconds, minutes or hours respectively. If the
          suffix is omitted, seconds is assumed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">update</emphasis></term>

        <listitem>
          <para>Added in Shorewall 4.4.21 and causes the compiler to update
          <filename>/etc/shorewall6/shorewall6.conf</filename> then validate
          the configuration. The update will add options not present in the
          existing file with their default values, and will move deprecated
          options with non-defaults to a deprecated options section at the
          bottom of the file. Your existing
          <filename>shorewall6.conf</filename> file is renamed
          <filename>shorewall6.conf.bak.</filename></para>

          <para>The <option>-a</option> option causes the updated
          <filename>shorewall6.conf</filename> file to be annotated with
          documentation.</para>

          <para>The <option>-b</option> option was added in Shorewall 4.4.26
          and causes legacy blacklisting rules (<ulink
          url="shorewall6-blacklist.html">shorewall6-blacklist</ulink> (5) )
          to be converted to entries in the blrules file (<ulink
          url="shorewall6-blrules.html">shorewall6-blrules</ulink> (5) ). The
          blacklist keyword is removed from <ulink
          url="shorewall6-zones.html">shorewall6-zones</ulink> (5), <ulink
          url="shorewall6-interfaces.html">shorewall-interfaces</ulink> (5)
          and <ulink url="shorewall6-hosts.html">shorewall6-hosts</ulink> (5).
          The unmodified files are saved with a .bak suffix.</para>

          <para>The <option>-D</option> option was added in Shorewall 4.5.11.
          When this option is specified, the compiler will walk through the
          directories in the CONFIG_PATH replacing FORMAT and COMMENT entries
          to compiler directives (e.g., ?FORMAT and ?COMMENT. When a file is
          updated, the original is saved in a .bak file in the same
          directory.</para>

          <para>For a description of the other options, see the <emphasis
          role="bold">check</emphasis> command above.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">version</emphasis></term>

        <listitem>
          <para>Displays Shorewall6's version. If the <option>-a</option>
          option is included, the version of Shorewall will also be
          displayed.</para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsect1>

  <refsect1>
    <title>EXIT STATUS</title>

    <para>In general, when a command succeeds, status 0 is returned; when the
    command fails, a non-zero status is returned.</para>

    <para>The <command>status</command> command returns exit status as
    follows:</para>

    <para>0 - Firewall is started.</para>

    <para>3 - Firewall is stopped or cleared</para>

    <para>4 - Unknown state; usually means that the firewall has never been
    started.</para>
  </refsect1>

  <refsect1>
    <title>See ALSO</title>

    <para><ulink
    url="http://www.shorewall.net/starting_and_stopping_shorewall.htm">http://www.shorewall.net/starting_and_stopping_shorewall.htm</ulink></para>

    <para>shorewall6-accounting(5), shorewall6-actions(5),
    shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
    shorewall6-maclist(5), shorewall6-netmap(5),shorewall6-params(5),
    shorewall6-policy(5), shorewall6-providers(5), shorewall6-rtrules(5),
    shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5),
    shorewall6-secmarks(5), shorewall6-tcclasses(5), shorewall6-tcdevices(5),
    shorewall6-tcrules(5), shorewall6-tos(5), shorewall6-tunnels(5),
    shorewall6-zones(5)</para>
  </refsect1>
</refentry>