shorewall_code/manpages/shorewall.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>shorewall</refentrytitle>

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

  <refnamediv>
    <refname>shorewall</refname>

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

  <refsynopsisdiv>
    <cmdsynopsis>
      <command>shorewall</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</replaceable></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>allow</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

      <arg choice="plain"><option>check</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>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>clear</option><arg><option>-f</option></arg></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</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</replaceable></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>drop</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</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>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>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>forget</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</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>shorewall</command>

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

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

      <arg
      choice="plain"><option>hits</option><arg><option>-t</option></arg></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

      <group choice="req">
        <arg choice="plain"><replaceable>address</replaceable>
        <replaceable>mask</replaceable></arg>

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

      <arg
      choice="plain"><replaceable>address1</replaceable><option>-</option><replaceable>address2</replaceable></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</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>shorewall</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><replaceable>directory</replaceable></arg>

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

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

    <cmdsynopsis>
      <command>shorewall</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>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>logreject</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</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>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>refresh</option><arg
      rep="repeat"><replaceable>chain</replaceable></arg></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>reject</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</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><replaceable>directory</replaceable></arg>

      <arg choice="plain"><replaceable>system</replaceable></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>reset</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>restart</option></arg>

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

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

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

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

      <arg><replaceable>directory</replaceable></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>restore</option></arg>

      <arg><replaceable>filename</replaceable></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>safe-restart</option></arg>

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

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

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

    <cmdsynopsis>
      <command>shorewall</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>-p</option></arg>

      <arg><replaceable>directory</replaceable></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>save</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

      <arg
      choice="req"><option>actions|classifiers|connections|config|filters|ip|ipa|macros|zones</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

      <arg choice="req"><option>mangle|nat|raw</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

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

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

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

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

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

      <arg><replaceable>directory</replaceable></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>stop</option><arg><option>-f</option></arg></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</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>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>try</option></arg>

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

      <arg choice="plain"><option>upgrade</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><option>-a</option></arg>

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

    <cmdsynopsis>
      <command>shorewall</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 shorewall utility is used to control the Shoreline Firewall
    (Shorewall).</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 Shorewall lockfile. It is useful if you need to
    include <command>shorewall</command> commands in
    <filename>/etc/shorewall/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="shorewall.conf.html">shorewall.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. Anternately, <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>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="shorewall-interfaces.html">shorewall-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>
        </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 configuraton in the specified
          <emphasis>directory</emphasis> and discards the compiled output
          script. If no <emphasis>directory</emphasis> is given, then
          /etc/shorewall 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">shorewall-lite show
          -f capabilities &gt; capabilities</emphasis> on a system with
          Shorewall 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>

          <para>The <option>-u</option> option was added in Shorewall 4.4.21
          and causes the compiler to upgrade
          <filename>/etc/shorewall/shorewall.conf</filename>. The upgrade will
          add new options 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>shorewall.conf</filename>
          file is renamed <filename>shorewall.conf.bak.</filename></para>

          <para>The <option>-a</option> option was added in Shorewall 4.4.21
          and is only meaningful when used with <option>-u</option>. It causes
          the upgraded <filename>shorewall.conf</filename> file to be
          annotated with documentation.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Clear will remove all rules and chains installed by Shorewall.
          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>

          <para>If <option>-f</option> is given, the command will be processed
          by the compiled script that executed the last successful <emphasis
          role="bold">start</emphasis>, <emphasis
          role="bold">restart</emphasis> or <emphasis
          role="bold">refresh</emphasis> command if that script exists.</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, Shorewall
          will look in that directory first for configuration files. If the
          <emphasis>pathname</emphasis> is omitted, the file
          <filename>firewall</filename> 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>shorewall -v-1
          compile -- -</command>) to suppress the 'Compiling...' message
          normally generated by <filename>/sbin/shorewall</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 presense
          of a configuration file named <filename>capabilities</filename>
          which may be produced using the command <emphasis
          role="bold">shorewall-lite show -f capabilities &gt;
          capabilities</emphasis> on a system with Shorewall 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>-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>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="shorewall-interfaces.html">shorewall-interfaces</ulink>(5)
          file. A <emphasis>host-list</emphasis> is comma-separated list whose
          elements are a host or network address.</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 Shorewall 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">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 shorewall 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/shorewall 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/shorewall/<emphasis>filenam</emphasis>e and
          /var/lib/shorewall/save. If no <emphasis>filename</emphasis> is
          given then the file specified by RESTOREFILE in <ulink
          url="shorewall.conf.html">shorewall.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">hits</emphasis></term>

        <listitem>
          <para>Generates several reports from Shorewall log messages in the
          current log file. If the <option>-t</option> option is included, the
          reports are restricted to log messages generated today.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Ipcalc displays the network address, broadcast address,
          network in CIDR notation and netmask corresponding to the
          input[s].</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Iprange decomposes the specified range of IP addresses into
          the equivalent list of network/host addresses.</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 iptables(8) for details.</para>

          <para>The <replaceable>iptables 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
          faciility = 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
          shorewall 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/shorewall 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/shorewall-lite/ &amp;&amp;\</emphasis>
    <emphasis role="bold">ssh root@</emphasis><replaceable>system</replaceable> <emphasis
              role="bold">'/sbin/shorewall-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,
          Shorewall 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 Shorewall-lite configuration is saved by executing <emphasis
          role="bold">shorewall-lite save</emphasis> via ssh.</para>

          <para>if <emphasis role="bold">-c</emphasis> is included, the
          command <emphasis role="bold">shorewall-lite show capabilities -f
          &gt; /var/lib/shorewall-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>
        </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="shorewall.conf.html">shorewall.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="shorewall.conf.html">shorewall.conf</ulink>(5) and
          produces an audible alarm when new Shorewall 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>shorewall 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="shorewall.conf.html">shorewall.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
          cancelled.</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. If no <replaceable>chain</replaceable> is given,
          the static blacklisting chain <emphasis
          role="bold">blacklst</emphasis> is assumed.</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>Example:<programlisting><command>shorewall 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>

          <para>The <emphasis role="bold">refresh</emphasis> command has
          slightly different behavior. 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/shorewall/tcrules </filename>and
          install the changes using <emphasis
          role="bold">refresh</emphasis>.</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
          shorewall 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/shorewall 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/shorewall-lite/ &amp;&amp;\</emphasis>
    <emphasis role="bold">ssh root@</emphasis><emphasis>system</emphasis> <emphasis
              role="bold">'/sbin/shorewall-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,
          Shorewall 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 Shorewall-lite configuration is saved by executing <emphasis
          role="bold">shorewall-lite save</emphasis> via ssh.</para>

          <para>if <emphasis role="bold">-c</emphasis> is included, the
          command <emphasis role="bold">shorewall-lite show capabilities -f
          &gt; /var/lib/shorewall-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>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>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">shorewall
          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, Shorewall
          will look in that <emphasis>directory</emphasis> first for
          configuration files.</para>

          <para>The <option>-n</option> option causes Shorewall 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/shorewall 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="shorewall.conf.html">shorewall.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>
        </listitem>
      </varlistentry>

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

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

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

        <listitem>
          <para>Only allowed if Shorewall is running. The current
          configuration is saved in /var/lib/shorewall/safe-restart (see the
          save command below) then a <emphasis role="bold">shorewall
          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 Shorewall will look in that directory first
          when opening configuration files.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Shorewall 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
          shorewall clear is performed for you. If a directory is given, then
          Shorewall will look in that directory first when opening
          configuration files.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>The dynamic blacklist is stored in /var/lib/shorewall/save.
          The state of the firewall is stored in
          /var/lib/shorewall/<emphasis>filename</emphasis> for use by the
          <emphasis role="bold">shorewall restore</emphasis> and <emphasis
          role="bold">shorewall -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="shorewall.conf.html">shorewall.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/iptables 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">iptables
                -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
                iptables 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">-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>Dispays 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">ip</emphasis></term>

              <listitem>
                <para>Displays the system's IPv4 configuration.</para>
              </listitem>
            </varlistentry>

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

              <listitem>
                <para>Added in Shorewall 4.4.17. Displays the per-IP
                accounting counters (<ulink
                url="manpages/shorewall-accounting.html">shorewall-accounting</ulink>
                (5)).</para>
              </listitem>
            </varlistentry>

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

              <listitem>
                <para>Displays the last 20 Shorewall messages from the log
                file specified by the LOGFILE option in <ulink
                url="shorewall.conf.html">shorewall.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">macro</emphasis></term>

              <listitem>
                <para>Added in Shorewall 4.4.6. Displays the file that
                implements the specified <replaceable>macro</replaceable>
                (usually
                <filename>/usr/share/shorewall/macro</filename>.<replaceable>macro</replaceable>).</para>
              </listitem>
            </varlistentry>

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

              <listitem>
                <para>Displays the Netfilter mangle table using the command
                <emphasis role="bold">iptables -t mangle -L -n
                -v</emphasis>.The <emphasis role="bold">-x</emphasis> option
                is passed directly through to iptables 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">nat</emphasis></term>

              <listitem>
                <para>Displays the Netfilter nat table using the command
                <emphasis role="bold">iptables -t nat -L -n -v</emphasis>.The
                <emphasis role="bold">-x</emphasis> option is passed directly
                through to iptables 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">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 IPv4 routing configuration.</para>
              </listitem>
            </varlistentry>

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

              <listitem>
                <para>Displays the Netfilter raw table using the command
                <emphasis role="bold">iptables -t raw -L -n -v</emphasis>.The
                <emphasis role="bold">-x</emphasis> option is passed directly
                through to iptables 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">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 Shorewall zones
                on the system.</para>
              </listitem>
            </varlistentry>
          </variablelist>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Start shorewall. Existing connections through shorewall
          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,
          Shorewall 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="shorewall.conf.html">shorewall.conf</ulink>(5)
          will be restored if that saved configuration exists and has been
          modified more recently than the files in /etc/shorewall. When
          <emphasis role="bold">-f</emphasis> is given, a
          <replaceable>directory</replaceable> may not be specified.</para>

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

          <para>The <option>-n</option> option causes Shorewall 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>-c</option> option was added in Shorewall 4.4.20
          and performs the compilation step unconditionally, overriding the
          AUTOMAKE setting in <ulink
          url="shorewall.conf.html">shorewall.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>
        </listitem>
      </varlistentry>

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

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

          <para>If <option>-f</option> is given, the command will be processed
          by the compiled script that executed the last successful <emphasis
          role="bold">start</emphasis>, <emphasis
          role="bold">restart</emphasis> or <emphasis
          role="bold">refresh</emphasis> command if that script exists.</para>
        </listitem>
      </varlistentry>

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

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

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

        <listitem>
          <para>If Shorewall is started then the firewall state is saved to a
          temporary saved configuration
          (<filename>/var/lib/shorewall/.try</filename>). Next, if Shorewall
          is currently started then a <emphasis role="bold">restart</emphasis>
          command is issued; otherwise, a <emphasis
          role="bold">start</emphasis> command is performed. if an error
          occurs during the compliation phase of the <emphasis
          role="bold">restart</emphasis> or <emphasis
          role="bold">start</emphasis>, the command terminates without
          changing the Shorewall state. If an error occurs during the
          <emphasis role="bold">restart</emphasis> phase, then a <emphasis
          role="bold">shorewall restore</emphasis> is performed using the
          saved configuration. If an error occurs during the <emphasis
          role="bold">start</emphasis> phase, then Shorewall 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>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Added in Shorewall 4.4.21 and causes the compiler to validate
          the configuration and then upgrade
          <filename>/etc/shorewall/shorewall.conf</filename>. The upgrade will
          add new options 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>shorewall.conf</filename> file is renamed
          <filename>shorewall.conf.bak.</filename></para>

          <para>The <option>-a</option> option causes the upgraded
          <filename>shorewall.conf</filename> file to be annotated with
          documentation.</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 Shorewall's version. The <option>-a</option> option
          is included for compatibility with earlier Shorewall releases and is
          ignored.</para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsect1>

  <refsect1>
    <title>FILES</title>

    <para>/etc/shorewall/</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>shorewall-accounting(5), shorewall-actions(5),
    shorewall-blacklist(5), shorewall-hosts(5), shorewall_interfaces(5),
    shorewall-ipsets(5), shorewall-maclist(5), shorewall-masq(5),
    shorewall-nat(5), shorewall-netmap(5), shorewall-params(5),
    shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5),
    shorewall-route_rules(5), shorewall-routestopped(5), shorewall-rules(5),
    shorewall.conf(5), shorewall-secmarks(5), shorewall-tcclasses(5),
    shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5),
    shorewall-tunnels(5), shorewall-zones(5)</para>
  </refsect1>
</refentry>