shorewall_code/Shorewall/manpages/shorewall.xml

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<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><option>nolock</option></arg></arg>

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

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

      <arg
      choice="plain"><replaceable>address</replaceable><arg><replaceable>option</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>call</option></arg>

      <arg
      choice="plain"><replaceable>function</replaceable><arg><replaceable>parameter</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"><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><option>nolock</option></arg></arg>

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

      <arg choice="plain"><option>close</option><arg choice="req">
      <replaceable>open-number</replaceable> |
      <replaceable>source</replaceable><replaceable>dest</replaceable><arg><replaceable>protocol</replaceable><arg>
      <replaceable>port</replaceable> </arg></arg></arg><replaceable>
      </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>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>

      <arg><option>-c</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><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>-<replaceable>options</replaceable></arg>

      <arg choice="plain"><option>open</option><replaceable>
      source</replaceable><replaceable> dest</replaceable><arg>
      <replaceable>protocol</replaceable><arg> <replaceable>port</replaceable>
      </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>reenable</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>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>remote-start</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><arg><option>-D</option></arg><replaceable>directory</replaceable></arg>

      <arg choice="plain"><arg><replaceable>system</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>remote-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><arg><option>-D</option></arg><replaceable>directory</replaceable></arg>

      <arg choice="plain"><arg><replaceable>system</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>remote-restart</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><arg><option>-D</option></arg><replaceable>directory</replaceable></arg>

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall</command>

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

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

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

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

      <arg choice="req"><option>mangle|nat|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="req"><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="req"><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>-i</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 <option>nolock</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>Beginning with Shorewall 5.1.0, the <command>shorewall</command>
    command is also be used to control Shorewall6, Shorewall-lite and
    Shorewall6-lite.</para>

    <orderedlist>
      <listitem>
        <para>When the Shorewall package is installed, then
        <command>shorewall</command> command defaults to that product.</para>
      </listitem>

      <listitem>
        <para>When the Shorewall package is not installed but Shorewall-lite
        is installed, the <command>shorewall</command> command defaults to
        Shorewall-lite.</para>
      </listitem>

      <listitem>
        <para>When neither the Shorewall nor Shorewall-lite package is
        installed but Shorewall6-lite is installed, the
        <command>shorewall</command> command defaults to
        Shorewall6-lite.</para>
      </listitem>
    </orderedlist>

    <para>When the Shorewall6 package is installed, the <option>6</option>
    option is used to cause <command>shorewall</command> commands to operate
    on the Shorewall6 configuration. In other words, "<command>shorewall -6
    ...</command>" is equivalent to the 5.0 command "<command>shorewall6
    ...</command>".</para>

    <para>Similarly, when Shorewall is not installed but both Shorewall-lite
    and Shorewall6-lite are installed, the <option>6</option> option causes
    <command>shorewall</command> commands to operate on the Shorewall6-lite
    configuration.</para>

    <para>Finally, when both the standard product (Shorewall or Shorewall6)
    and the corresponding -lite product(s) are installed, the
    <option>l</option> option causes <command>shorewall</command> commands to
    operate on the -lite configuration rather than the standard configuration.
    In other words "<command>shorewall -l ...</command>" is equivalent to the
    5.0 "<command>shorewall-lite -l ...</command>" command and
    "<command>shorewall -6l ...</command>" is equivalent to
    "<command>shorewall6-lite ...</command>".</para>

    <para>The remaining <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>{
        <replaceable>interface</replaceable>[:<replaceable>host-list</replaceable>]...
        <replaceable>zone</replaceable> | <replaceable>zone</replaceable>
        <replaceable>host-list</replaceable> }</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)
          (<ulink
          url="/manpages6/shorewall6-interfaces.html">shorewall6-interfaces</ulink>(5))file.
          A <emphasis>host-list</emphasis> is comma-separated list whose
          elements are host or network addresses.<caution>
              <para>The <command>add</command> command is not very robust. If
              there are errors in the <replaceable>host-list</replaceable>,
              you may see a large number of error messages yet a subsequent
              <command>shorewall show zones</command> command will indicate
              that all hosts were added. If this happens, replace
              <command>add</command> by <command>delete</command> and run the
              same command again. Then enter the correct command.</para>
            </caution></para>

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

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

        <listitem>
          <para>Re-enables receipt of packets from hosts previously
          blacklisted by a <emphasis role="bold">blacklist</emphasis>,
          <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">blacklist</emphasis>
        <replaceable>address</replaceable> [ <replaceable>option</replaceable>
        ... ]</term>

        <listitem>
          <para>Added in Shorewall 5.0.8 and requires
          DYNAMIC_BLACKLIST=ipset.. in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5).
          Causes packets from the given host or network
          <replaceable>address</replaceable> to be dropped, based on the
          setting of BLACKLIST in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5). The
          <replaceable>address</replaceable> along with any
          <replaceable>option</replaceable>s are passed to the <command>ipset
          add</command> command.</para>

          <para>If the <option>disconnect</option> option is specified in the
          DYNAMIC_BLACKLISTING setting, then the effective VERBOSITY
          determines the amount of information displayed:</para>

          <itemizedlist>
            <listitem>
              <para>If the effective verbosity is &gt; 0, then a message
              giving the number of conntrack flows deleted by the command is
              displayed.</para>
            </listitem>

            <listitem>
              <para>If the effective verbosity is &gt; 1, then the conntrack
              table entries deleted by the command are also displayed.</para>
            </listitem>
          </itemizedlist>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">call <replaceable>function</replaceable> [
        <replaceable>parameter</replaceable> ... ]</emphasis></term>

        <listitem>
          <para>Added in Shorewall 4.6.10. Allows you to call a function in
          one of the Shorewall libraries or in your compiled script. function
          must name the shell function to be called. The listed parameters are
          passed to the function.</para>

          <para>The function is first searched for in
          <filename>lib.base</filename>, <filename>lib.common</filename>,
          <filename>lib.cli</filename> and <filename>lib.cli-std</filename>.
          If it is not found, the call command is passed to the generated
          script to be executed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">check</emphasis> [-<option>e</option>]
        [-<option>d</option>] [-<option>p</option>] [-<option>r</option>]
        [-<option>T</option>] [-<option>i</option>]
        [<replaceable>directory</replaceable>]</term>

        <listitem>
          <para>Not available with Shorewall[6]-lite.</para>

          <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 <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">clear</emphasis>
        [-<option>f</option>]</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">close</emphasis> {
        <replaceable>open-number</replaceable> |
        <replaceable>source</replaceable> <replaceable>dest</replaceable> [
        <replaceable>protocol</replaceable> [ <replaceable>port</replaceable>
        ] ] }</term>

        <listitem>
          <para>Added in Shorewall 4.5.8. This command closes a temporary open
          created by the <command>open</command> command. In the first form,
          an <replaceable>open-number</replaceable> specifies the open to be
          closed. Open numbers are displayed in the <emphasis
          role="bold">num</emphasis> column of the output of the
          <command>shorewall show opens </command>command.</para>

          <para>When the second form of the command is used, the parameters
          must match those given in the earlier <command>open</command>
          command.</para>

          <para>This command requires that the firewall be in the started
          state and that DYNAMIC_BLACKLIST=Yes in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf
          (5)</ulink>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">compile </emphasis>[-<option>e</option>]
        [-<option>c</option>] [-<option>d</option>] [-<option>p</option>]
        [-<option>T</option>] [-<option>i</option>] [<replaceable> directory
        </replaceable>] [<replaceable> pathname</replaceable> ]</term>

        <listitem>
          <para>Not available with shorewall[6]-lite.</para>

          <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 <option>-e</option> 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
          <option>-e</option> requires the presence of a configuration file
          named <filename>capabilities</filename> which may be produced using
          the command <command>shorewall-lite show -f capabilities &gt;
          capabilities</command> on a system with Shorewall Lite
          installed</para>

          <para>The <option>-c</option> 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 <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">delete </emphasis>{
        <replaceable>interface</replaceable>[:<replaceable>host-list</replaceable>]...
        <replaceable>zone</replaceable> | <replaceable>zone</replaceable>
        <replaceable>host-list</replaceable> }</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)
          (<ulink
          url="/manpages6/shorewall6-interfaces.html">shorewall6-interfaces</ulink>(5)
          file. A <emphasis>host-list</emphasis> is comma-separated list whose
          elements are a host or network address.</para>

          <para>Beginning with Shorewall 4.5.9, the <emphasis
          role="bold">dynamic_shared</emphasis> zone option (<ulink
          url="/manpages/shorewall-zones.html">shorewall-zones</ulink>(5),
          <ulink
          url="/manpages6/shorewall6-zones.html">shorewall6-zones</ulink>(5))
          allows a single ipset to handle entries for multiple interfaces.
          When that option is specified for a zone, the
          <command>delete</command> command has the alternative syntax in
          which the <replaceable>zone</replaceable> name precedes the
          <replaceable>host-list</replaceable>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">disable </emphasis>{
        <replaceable>interface</replaceable> |
        <replaceable>provider</replaceable> }</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)
          (<ulink
          url="/manpages/shorewall6-routes.html">shorewall6-routes</ulink>(5))and
          any traffic shaping configuration for the interface.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para>Causes traffic from the listed <emphasis>address</emphasis>es
          to be silently dropped. This command requires that the firewall be
          in the started state and that DYNAMIC_BLACKLIST=Yes in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf
          (5)</ulink>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">dump </emphasis> [-<option>x</option>]
        [-<option>l</option>] [-<option>m</option>]
        [-<option>c</option>]</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.</para>

          <para>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>

          <para>The <option>-c</option> option causes the route cache to be
          dumped in addition to the other routing information.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">enable </emphasis>{
        <replaceable>interface</replaceable> |
        <replaceable>provider</replaceable> }</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)
          (<ulink
          url="/manpages/shorewall6-routes.html">shorewall6-routes</ulink>(5))
          and installs the interface's traffic shaping configuration, if
          any.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">export </emphasis>[<replaceable>
        directory1</replaceable> ] [<replaceable>
        user</replaceable>@]<replaceable>system</replaceable>[:<replaceable>directory2</replaceable>
        ]</term>

        <listitem>
          <para>Not available with Shorewall[6]-lite.</para>

          <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> [
        <replaceable>filename</replaceable> ]</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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)) is
          assumed.</para>
        </listitem>
      </varlistentry>

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

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

      <varlistentry>
        <term><emphasis role="bold">hits</emphasis>
        [-<option>t</option>]</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. Not
          available with Shorewall6[-lite].</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">ipcalc</emphasis> { address mask |
        address/vlsm }</term>

        <listitem>
          <para>Ipcalc displays the network address, broadcast address,
          network in CIDR notation and netmask corresponding to the input[s].
          Not available with Shorewall6[-lite].</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">iprange
        </emphasis><replaceable>address1</replaceable>-<replaceable>address2</replaceable></term>

        <listitem>
          <para>Iprange decomposes the specified range of IP addresses into
          the equivalent list of network/host addresses. Not available with
          Shorewall6[-lite].</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">iptrace</emphasis> <replaceable>iptables
        match expression</replaceable></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 or IPv6 <ulink
          url="/shorewall_logging.html#Backends">logging
          backend</ulink>.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para><command>list</command> is a synonym for
          <command>show</command> -- please see below.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">logdrop</emphasis>
        <replaceable>address</replaceable></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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).
          This command requires that the firewall be in the started state and
          that DYNAMIC_BLACKLIST=Yes in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf
          (5)</ulink>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">logwatch </emphasis>[-<option>m</option>]
        [<replaceable> refresh-interval </replaceable>]</term>

        <listitem>
          <para>Monitors the log file specified by the LOGFILE option in
          <ulink url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.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><replaceable>
        address</replaceable></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),
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).
          This command requires that the firewall be in the started state and
          that DYNAMIC_BLACKLIST=Yes in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf
          (5)</ulink>.</para>
        </listitem>
      </varlistentry>

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

        <listitem>
          <para><command>ls</command> is a synonym for <command>show</command>
          -- please see below.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">noiptrace </emphasis><replaceable>iptables
        match expression</replaceable></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">open</emphasis>
        <replaceable>source</replaceable> <replaceable>dest</replaceable> [
        <replaceable>protocol</replaceable> [ <replaceable>port</replaceable>
        ] ]</term>

        <listitem>
          <para>Added in Shorewall 4.6.8. This command requires that the
          firewall be in the started state and that DYNAMIC_BLACKLIST=Yes in
          <ulink url="/manpages/shorewall.conf.html">shorewall.conf
          (5)</ulink>. The effect of the command is to temporarily open the
          firewall for connections matching the parameters.</para>

          <para>The <replaceable>source</replaceable> and
          <replaceable>dest</replaceable> parameters may each be specified as
          <emphasis role="bold">all</emphasis> if you don't wish to restrict
          the connection source or destination respectively. Otherwise, each
          must contain a host or network address or a valid DNS name.</para>

          <para>The <replaceable>protocol</replaceable> may be specified
          either as a number or as a name listed in /etc/protocols. The
          <replaceable>port</replaceable> may be specified numerically or as a
          name listed in /etc/services.</para>

          <para>To reverse the effect of a successful <command>open</command>
          command, use the <command>close</command> command with the same
          parameters or simply restart the firewall.</para>

          <para>Example: To open the firewall for SSH connections to address
          192.168.1.1, the command would be:</para>

          <programlisting>    shorewall open all 192.168.1.1 tcp 22</programlisting>

          <para>To reverse that command, use:</para>

          <programlisting>    shorewall close all 192.168.1.1 tcp 22</programlisting>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">reenable</emphasis>{
        <replaceable>interface</replaceable> |
        <replaceable>provider</replaceable> }</term>

        <listitem>
          <para>Added in Shorewall 4.6.9. This is equivalent to a
          <command>disable</command> command followed by an
          <command>enable</command> command on the specified
          <replaceable>interface</replaceable> or
          <replaceable>provider</replaceable>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">refresh </emphasis> [-<option>n</option>]
        [-<option>d</option>] [-<option>T</option>] [-i] [-<option>D
        </option><replaceable>directory</replaceable> ] [
        <replaceable>chain</replaceable>... ]</term>

        <listitem>
          <para>Not available with Shorewall[6]-lite.</para>

          <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 <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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">reject</emphasis><replaceable>
        address</replaceable></term>

        <listitem>
          <para>Causes traffic from the listed <emphasis>address</emphasis>es
          to be silently rejected. This command requires that the firewall be
          in the started state and that DYNAMIC_BLACKLIST=Yes in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf
          (5)</ulink>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">reload </emphasis>[-<option>n</option>]
        [-<option>p</option>] [-<option>d</option>] [-<option>f</option>]
        [-<option>c</option>] [-<option>T</option>] [-<option>i</option>]
        [-<option>C</option>] [ <replaceable>directory</replaceable> ]</term>

        <listitem>
          <para>This command was re-implemented in Shorewall 5.0.0. The
          pre-5.0.0 <command>reload</command> command is now called
          <command>remote-restart</command> (see below).</para>

          <variablelist>
            <varlistentry>
              <term>Shorewall and Shorewall6</term>

              <listitem>
                <para>Reload 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)
                (Shorewall and Shorewall6 only). 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 <option>-i</option> option was added in Shorewall
                4.6.0 and causes a warning message to be issued if the 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)
                (<ulink
                url="/manpages6/shorewall6.conf.html">shorewall6.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)
                (<ulink
                url="/manpages6/shorewall6.conf.html">shorewall6.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>Shorewall-lite and Shorewall6-lite</term>

              <listitem>
                <para>Reload is similar to <emphasis role="bold">shorewall
                start</emphasis> except that it assumes that the firewall is
                already started. Existing connections are maintained.</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
                4.6.5 If the existing firewall script is 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>
          </variablelist>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">remote-start</emphasis>
        [-<option>s</option>] [-<option>c</option>] [-<option>r</option>
        <replaceable>root-user-name</replaceable>] [-<option>T</option>]
        [-<option>i</option>] [ [ -D ] <replaceable>directory</replaceable> ]
        [ <replaceable>system</replaceable> ]</term>

        <listitem>
          <para>This command was renamed from <command>load</command> in
          Shorewall 5.0.0 and is only available in Shorewall and
          Shoreawall6.</para>

          <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. Beginning with Shorewall 5.0.13, if
          <replaceable>system</replaceable> is omitted, then the FIREWALL
          option setting in <ulink
          url="shorewall.conf.html">shorewall.conf</ulink>(5) (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf(5)</ulink>) is
          assumed. In that case, if you want to specify a
          <replaceable>directory</replaceable>, then the <option>-D</option>
          option must be given.</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 <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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">remote-reload
        </emphasis>[-<option>s</option>] [-<option>c</option>]
        [-<option>r</option> <replaceable>root-user-name</replaceable>]
        [-<option>T</option>] [-<option>i</option>] [ [ -D ]
        <replaceable>directory</replaceable> ] [
        <replaceable>system</replaceable> ]</term>

        <listitem>
          <para>This command was added in Shorewall 5.0.0 and is only
          available in Shorewall and Shorewall6.</para>

          <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 reload'</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.
          Beginning with Shorewall 5.0.13, if
          <replaceable>system</replaceable> is omitted, then the FIREWALL
          option setting in <ulink
          url="shorewall6.conf.html">shorewall6.conf(5)</ulink> (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)) is
          assumed. In that case, if you want to specify a
          <replaceable>directory</replaceable>, then the <option>-D</option>
          option must be given.</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 <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">remote-restart
        </emphasis>[-<option>s</option>] [-<option>c</option>]
        [-<option>r</option> <replaceable>root-user-name</replaceable>]
        [-<option>T</option>] [-<option>i</option>] [ [ -D ]
        <replaceable>directory</replaceable> ] [
        <replaceable>system</replaceable> ]</term>

        <listitem>
          <para>This command was renamed from <command>reload</command> in
          Shorewall 5.0.0 and is available in Shorewall and Shorewall6
          only.</para>

          <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.
          Beginning with Shorewall 5.0.13, if
          <replaceable>system</replaceable> is omitted, then the FIREWALL
          option setting in <ulink
          url="shorewall6.conf.html">shorewall6.conf(5)</ulink> (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)) is
          assumed. In that case, if you want to specify a
          <replaceable>directory</replaceable>, then the <option>-D</option>
          option must be given.</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 <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5).</para>
        </listitem>
      </varlistentry>

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

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

          <para>Beginning with Shorewall 5.0.0,
          <replaceable>chain</replaceable> may be composed of both a table
          name and a chain name separated by a colon (e.g.,
          mangle:PREROUTING). Chain names following that don't include a table
          name are assumed to be in that same table. If no table name is given
          in the command, the filter table is assumed.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">restart </emphasis>[-<option>n</option>]
        [-<option>p</option>] [-<option>d</option>] [-<option>f</option>]
        [-<option>c</option>] [-<option>T</option>] [-<option>i</option>]
        [-<option>C</option>] [ <replaceable>directory</replaceable> ]</term>

        <listitem>
          <para>Beginning with Shorewall 5.0.0, this command performs a true
          restart. The firewall is completely stopped as if a
          <command>stop</command> command had been issued then it is started
          again.</para>

          <variablelist>
            <varlistentry>
              <term>Shorewall and Shorewall6</term>

              <listitem>
                <para>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 <option>-i</option> option was added in Shorewall
                4.6.0 and causes a warning message to be issued if the 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>Shorewall-lite and Shorewall6-lite</term>

              <listitem>
                <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
                4.6.5 If the existing firewall script is 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>
          </variablelist>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">restore </emphasis> [-<option>n</option>]
        [-<option>p</option>] [-<option>C</option>] [
        <replaceable>filename</replaceable> ]</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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.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><replaceable>command</replaceable> [
        <replaceable>parameter</replaceable> ... ]</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-reload
        </emphasis>[-<option>d</option>] [-<option>p</option>] [-<option>t
        </option><replaceable>timeout</replaceable> ] [
        <replaceable>directory</replaceable> ]</term>

        <listitem>
          <para>Added in Shorewall 5.0.0, this command performs the same
          function as did <command>safe_restart</command> in earlier releases.
          The command is available in Shorewall and Shorewall6 only.</para>

          <para>Only allowed if Shorewall is running. The current
          configuration is saved in /var/lib/shorewall/safe-reload (see the
          save command below) then a <emphasis role="bold">shorewall
          reload</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-restart
        </emphasis>[-<option>d</option>] [-<option>p</option>] [-<option>t
        </option><replaceable>timeout</replaceable> ] [
        <replaceable>directory</replaceable> ]</term>

        <listitem>
          <para>Only allowed if Shorewall[6] is running and is not available
          in Shorewall-lite and Shorewall6-lite. 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><emphasis
        role="bold"> </emphasis>[-<option>d</option>] [-<option>p</option>]
        [-<option>t</option><replaceable>timeout</replaceable> ] [
        <replaceable>directory</replaceable> ]</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>

          <para>This command is available in Shorewall and Shorewall6
          only.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">save </emphasis> [-<option>C</option>] [
        <replaceable>filename</replaceable> ]</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)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.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">savesets</emphasis></term>

        <listitem>
          <para>Added in shorewall 4.6.8. Performs the same action as the
          <command>stop</command> command with respect to saving ipsets (see
          the SAVE_IPSETS option in <ulink
          url="/manpages/shorewall.conf.html">shorewall.conf</ulink> (5)
          (<ulink
          url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).
          This command may be used to proactively save your ipset contents in
          the event that a system failure occurs prior to issuing a
          <command>stop</command> command.</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>
              [-<option>x</option>]</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>[-<option>f</option>] <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>b</option>] [-<option>x</option>]
              [-<option>l</option>] [-<option>t</option>
              {<option>filter</option>|<option>mangle</option>|<option>nat</option>|<option>raw</option>|<option>rawpost</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
              [<replaceable>filter_parameter</replaceable>
              ...]</emphasis></term>

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

                <para>If the <command>conntrack</command> utility is
                installed, beginning with Shorewall 4.6.11 the set of
                connections displayed can be limited by including conntrack
                filter parameters (-p , -s, --dport, etc). See conntrack(8)
                for details.</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), <ulink
                url="/manpages6/shorewall6-accounting.html">shorewall6-accounting</ulink>(5)).</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term>[-<option>m</option>] <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)
                (<ulink
                url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).
                The <emphasis role="bold">-m</emphasis> option causes the MAC
                address of each packet source to be displayed if that
                information is available.</para>
              </listitem>
            </varlistentry>

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

              <listitem>
                <para>Displays information about each macro defined on the
                firewall system (Shorewall and Shorewall6 only)</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term><emphasis role="bold">macro
              </emphasis><replaceable>macro</replaceable></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>).
                Available only in Shorewall and Shorewall6.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term>[-<option>x</option>] <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">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>[-<option>x</option>] <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">opens</emphasis></term>

              <listitem>
                <para>Added in Shorewall 4.5.8. Displays the iptables rules in
                the 'dynamic' chain created through use of the <command>open
                </command>command..</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>[-<option>c</option>]<emphasis role="bold">
              routing</emphasis></term>

              <listitem>
                <para>Displays the system's IPv4 routing configuration.
                The<option> -c</option> option causes the route cache to be
                displayed along with the other routing information.</para>
              </listitem>
            </varlistentry>

            <varlistentry>
              <term>[-<option>x</option>] <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><emphasis role="bold">
        </emphasis>[-<option>n</option>] [-<option>p</option>]
        [-<option>d</option>] [-<option>f</option>] [-<option>c</option>]
        [-<option>T</option>] [-<option>i</option>] [-<option>C</option>] [
        <replaceable>directory</replaceable> ]</term>

        <listitem>
          <para><variablelist>
              <varlistentry>
                <term>Shorewall and Shorewall6</term>

                <listitem>
                  <para>Start shorewall[6]. 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)
                  (<ulink
                  url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5))
                  will be restored if that saved configuration exists and has
                  been modified more recently than the files in
                  /etc/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)
                  (<ulink
                  url="/manpages6/shorewall6.conf.html">shorewall6.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)
                  (<ulink
                  url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).
                  When both <option>-f</option> and <option>-c</option>are
                  present, the result is determined by the option that appears
                  last.</para>

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

                  <para>The -i option was added in Shorewall 4.6.0 and causes
                  a warning message to be issued if the 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>
                  (<ulink
                  url="/manpages6/shorewall6.conf.html">shorewall6.conf</ulink>(5)).</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>Shorewall-lite and Shorewall6-lite</term>

                <listitem>
                  <para>Start Shorewall[6] Lite. Existing connections through
                  shorewall[6]-lite managed interfaces are untouched. New
                  connections will be allowed only if they are allowed by the
                  firewall rules or policies.</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>-n</option> option prevents the firewall
                  script from modifying the current routing
                  configuration.</para>

                  <para>The <option>-f</option> option was added in Shorewall
                  4.6.5. If the RESTOREFILE named in <ulink
                  url="shorewall.conf.html">shorewall.conf</ulink>(5) exists,
                  is executable and is not older than the current filewall
                  script, then that saved configuration is restored.</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>
            </variablelist></para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><emphasis role="bold">stop</emphasis>
        [-<option>f</option>]</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>
        [-<option>i</option>]</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>
        <replaceable>directory</replaceable> [
        <replaceable>timeout</replaceable> ]</term>

        <listitem>
          <para>This command is available in Shorewall and Shorewall6
          only.</para>

          <para>If Shorewall[6] is started then the firewall state is saved to
          a temporary saved configuration
          (<filename>/var/lib/shorewall/.try</filename>). Next, if
          Shorewall[6] 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[6] 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> [-<option>d</option>]
        [-<option>r</option>] [-<option>T</option>] [-<option>a</option>]
        [-<option>i</option>] [-<option>A</option>] [
        <replaceable>directory</replaceable> ]</term>

        <listitem>
          <para>This command is available only in Shorewall and
          Shorewall6.</para>

          <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><filename>The command was extended over the years with a set
          of options that caused additional configuration
          updates.</filename></para>

          <itemizedlist>
            <listitem>
              <para>Convert an existing <filename>blacklist</filename> file
              into an equivalent <filename>blrules</filename> file.</para>
            </listitem>

            <listitem>
              <para>Convert an existing <filename>routestopped</filename> file
              into an equivalent <filename>stoppedrules</filename>
              file.</para>
            </listitem>

            <listitem>
              <para>Convert existing <filename>tcrules</filename> and
              <filename>tos</filename> files into an equivalent mangle
              file.</para>
            </listitem>

            <listitem>
              <para>Convert an existing <filename>notrack</filename> file into
              an equivalent <filename>conntrack</filename> file.</para>
            </listitem>

            <listitem>
              <para>Convert FORMAT, SECTION and COMMENT entries into ?FORMAT,
              ?SECTION and ?COMMENT directives.</para>
            </listitem>
          </itemizedlist>

          <para>In each case, the old file is renamed with a .bak
          suffix.</para>

          <para>In Shorewall 5.0.0, the options were eliminated and the
          <command>update</command> command performs all of the updates
          described above.</para>

          <important>
            <para>There are some notable restrictions with the
            <command>update</command> command:</para>

            <orderedlist>
              <listitem>
                <para>Converted rules will be appended to the existing file;
                if there is no existing file in the CONFIG_PATH, one will be
                created in the directory specified in the command or in the
                first entry in the CONFIG_PATH (normally <filename
                class="directory">/etc/shorewall</filename>) otherwise.</para>
              </listitem>

              <listitem>
                <para>Existing comments in the file being converted will not
                be transferred to the output file.</para>
              </listitem>

              <listitem>
                <para>With the exception of the
                <filename>notrack</filename>-&gt;<filename>conntrack</filename>
                conversion, INCLUDEd files will be expanded inline in the
                output file.</para>
              </listitem>

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

              <listitem>
                <para>Prior to Shorewall 5.0.15, shell variables will be
                expanded in the output file.</para>
              </listitem>

              <listitem>
                <para>Prior to Shorewall 5.0.15, lines omitted by compiler
                directives (?if ...., etc.) will not appear in the output
                file.</para>

                <important>
                  <para>Because the translation of the 'blacklist' and
                  'routestopped' files is not 1:1, omitted lines and compiler
                  directives are not transferred to the converted files. If
                  either are present, the compiler issues a warning:</para>

                  <programlisting> WARNING: "Omitted rules and compiler directives were not translated</programlisting>
                </important>
              </listitem>
            </orderedlist>
          </important>

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

          <para>The <option>-i</option> option was added in Shorewall 4.6.0
          and causes a warning message to be issued if the 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>-A</option> option is included for compatibility
          with Shorewall 4.6 and is equivalent to specifying the
          <option>-i</option> option.</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>
        [-<option>a</option>]</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>ENVIRONMENT</title>

    <para>Two environmental variables are recognized by Shorewall:</para>

    <variablelist>
      <varlistentry>
        <term>SHOREWALL_INIT_SCRIPT</term>

        <listitem>
          <para>When set to 1, causes Std out to be redirected to the file
          specified in the STARTUP_LOG option in <ulink
          url="shorewall.conf.html">shorewall.conf(5)</ulink>.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term>SW_LOGGERTAG</term>

        <listitem>
          <para>Added in Shorewall 5.0.8. When set to a non-empty value, that
          value is passed to the logger utility in its -t (--tag)
          option.</para>
        </listitem>
      </varlistentry>
    </variablelist>
  </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>