shorewall_code/Shorewall/manpages/shorewall.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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>

    <refmiscinfo>Administrative Commands</refmiscinfo>
  </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><option>
      |</option><replaceable> 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>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"><arg><option>check | ck </option></arg></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>-i</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"><arg><option>compile | co </option></arg></arg>

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

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

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

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

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

      <arg><option>-i</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><option>
      |</option><replaceable> 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>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>enable</option></arg>

      <arg choice="plain">{ <replaceable>interface</replaceable> |
      <replaceable>provider</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>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><option>-T</option></arg>

      <arg><option>-i</option></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><option>-n</option></arg><arg><option>-d</option></arg><arg><option>-T</option></arg><arg><option>-i</option></arg><arg>-<option>D</option>
      <replaceable>directory</replaceable> </arg><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><option>-T</option></arg>

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

      <arg><option>-i</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><option>-n</option></arg><arg><option>-p</option></arg><arg><option>-C</option></arg></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>run</option></arg>

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

      <arg><replaceable>parameter ...</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><option>-t</option> <replaceable>timeout</replaceable></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><option>-t</option> <replaceable>timeout</replaceable></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><option>-C</option></arg></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="opt"><option>show | list | ls </option></arg>

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

      <arg choice="plain"><option>{bl|blacklists}</option></arg>
    </cmdsynopsis>

    <cmdsynopsis>
      <command>shorewall</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>nat</option>|<option>raw|rawpost</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="opt"><option>show | list | ls </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="opt"><option>show | list | ls </option></arg>

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

    <cmdsynopsis>
      <command>shorewall</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>shorewall</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>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="opt"><option>show | list | ls </option></arg>

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

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

    <cmdsynopsis>
      <command>shorewall</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>shorewall</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>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><option>-T</option><arg><option>-i</option></arg></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"><arg
      choice="plain"><option>status</option><arg><option>-i</option></arg></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>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>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><option>-i</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="/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="/manpages/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. 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>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="/manpages/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>

          <para>Beginning with Shorewall 4.5.9, the <emphasis
          role="bold">dynamic_shared</emphasis> zone option (<ulink
          url="/manpages/shorewall-zones.html">shorewall-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/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 -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</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
          <replaceable>directory</replaceable> 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 presence
          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 <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>

          <para>The -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</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="/manpages/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>

          <para>Beginning with Shorewall 4.5.9, the <emphasis
          role="bold">dynamic_shared</emphasis> zone option (<ulink
          url="/manpages/shorewall-zones.html">shorewall-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="/manpages/shorewall-routes.html">shorewall-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 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">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="/manpages/shorewall-routes.html">shorewall-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 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>filename</emphasis> and
          /var/lib/shorewall/save. If no <emphasis>filename</emphasis> is
          given then the file specified by RESTOREFILE in <ulink
          url="/manpages/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 log message destination is determined by the
          currently-selected IPv4 <ulink
          url="/shorewall_logging.html#Backends">logging
          backend</ulink>.</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>

          <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 -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</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="/manpages/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="/manpages/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="/manpages/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
          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. 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>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 -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</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>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>

          <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 -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</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="/manpages/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>

          <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 -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</para>

          <para>The <option>-C</option> option was added in Shorewall 4.6.5
          and is only meaningful when AUTOMAKE=Yes in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5). If an
          existing firewall script is used and if that script was the one that
          generated the current running configuration, then the running
          netfilter configuration will be reloaded as is so as to preserve the
          iptables packet and byte counters.</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="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</para>

          <caution>
            <para>If your iptables ruleset depends on variables that are
            detected at run-time, either in your params file or by
            Shorewall-generated code, <command>restore</command> will use the
            values that were current when the ruleset was saved, which may be
            different from the current values.</para>
          </caution>

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

          <para>The <option>-p</option> option, added in Shorewall 4.6.5,
          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 4.6.5.
          If the <option>-C</option> option was specified during <emphasis
          role="bold">shorewall save</emphasis>, then the counters saved by
          that operation will be restored.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Added in Shorewall 4.6.3. Executes
          <replaceable>command</replaceable> in the context of the generated
          script passing the supplied <replaceable>parameter</replaceable>s.
          Normally, the <replaceable>command</replaceable> will be a function
          declared in <filename>lib.private</filename>.</para>

          <para>Before executing the <replaceable>command</replaceable>, the
          script will detect the configuration, setting all SW_* variables and
          will run your <filename>init</filename> extension script with
          $COMMAND = 'run'.</para>

          <para>If there are files in the CONFIG_PATH that were modified after
          the current firewall script was generated, the following warning
          message is issued:</para>

          <simplelist>
            <member>WARNING: /var/lib/shorewall/firewall is not up to
            date</member>
          </simplelist>
        </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>

          <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>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>

          <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/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="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</para>

          <para>The <option>-C</option> option, added in Shorewall 4.6.5,
          causes the iptables packet and byte counters to be saved along with
          the chains and rules.</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">bl|blacklists</emphasis></term>

              <listitem>
                <para>Added in Shorewall 4.6.2. Displays the dynamic chain
                along with any chains produced by entries in
                shorewall-blrules(5).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">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">-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 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="/manpages/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">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">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="/manpages/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="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5). When
          LEGACY_FASTSTART=No, the modification 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="/manpages/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>

          <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 -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf(5)</ulink>.</para>

          <para>The <option>-C</option> option was added in Shorewall 4.6.5
          and is only meaningful when the <option>-f</option> option is also
          specified. If the previously-saved configuration is restored, and if
          the <option>-C</option> option was also specified in the <emphasis
          role="bold">save</emphasis> command, then the packet and byte
          counters will be restored.</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="/manpages/shorewall-routestopped.html">shorewall-routestopped</ulink>(5)
          or permitted by the ADMINISABSENTMINDED option in <ulink
          url="/manpages/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="/manpages/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>

          <para>The <option>-i </option>option was added in Shorewall 4.6.2
          and causes the status of each optional or provider interface to be
          displayed.</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 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 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>

          <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/shorewall/shorewall.conf then validate the
          configuration</filename>. The update will add options not present in
          the old 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>shorewall.conf</filename> file is renamed
          <filename>shorewall.conf.bak.</filename></para>

          <para>The <option>-a</option> option causes the updated
          <filename>shorewall.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="/manpages/shorewall-blacklist.html">shorewall-blacklist</ulink>
          (5) ) to be converted to entries in the blrules file (<ulink
          url="/manpages/shorewall-blrules.html">shorewall-blrules</ulink> (5)
          ). The blacklist keyword is removed from <ulink
          url="/manpages/shorewall-zones.html">shorewall-zones</ulink> (5),
          <ulink
          url="/manpages/shorewall-interfaces.html">shorewall-interfaces</ulink>
          (5) and <ulink
          url="/manpages/shorewall-hosts.html">shorewall-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>The -i option was added in Shorewall 4.6.0 and causes a
          warning message to be issued if the line current line contains
          alternative input specifications following a semicolon (";"). Such
          lines will be handled incorrectly if INLINE_MATCHES is set to Yes in
          <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).</para>

          <para>The <option>-t</option> option was added in Shorewall 4.6.0.
          When specified, <option>-t</option> causes <ulink
          url="shorewall-tcrules.html">shorewall-tcrules(5)</ulink> to be
          converted to <ulink
          url="shorewall-mangle.html">shorewall-mangle(5)</ulink>. The old
          file is renamed with a .bak suffix.</para>

          <important>
            <para>There are some notable restrictions with the
            <option>-t</option> option:</para>

            <orderedlist>
              <listitem>
                <para>Converted rules will be appended to the existing
                <filename>mangle</filename> file; if there is no
                <filename>mangle</filename> file in the CONFIG_PATH, one will
                be created in <filename
                class="directory">/etc/shorewall</filename>.</para>
              </listitem>

              <listitem>
                <para>Existing comments in the <filename>tcrules</filename>
                file will not be transferred to the
                <filename>mangle</filename> file.</para>
              </listitem>

              <listitem>
                <para>INCLUDEd files will be expanded inline in the
                <filename>mangle</filename> file.</para>
              </listitem>

              <listitem>
                <para>Columns in the <filename>mangle</filename> file will be
                separated by a single tab character; there is no attempt made
                to otherwise align the columns.</para>
              </listitem>
            </orderedlist>
          </important>

          <para>The <option>-A</option> option was added in Shorewall 4.6.0
          and is equivalent to specifying the <option>-b</option>,
          <option>-D</option> and the <option>-t</option> options.</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>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>FILES</title>

    <para>/etc/shorewall/</para>
  </refsect1>

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

    <para><ulink
    url="/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-rtrules(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>