shorewall_code/manpages6/shorewall6.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
<refentry>
  <refmeta>
    <refentrytitle>shorewall6</refentrytitle>

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

  <refnamediv>
    <refname>shorewall6</refname>

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

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

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

    <cmdsynopsis>
      <command>shorewall6</command>

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

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

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

  <refsect1>
    <title>Description</title>

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

  <refsect1>
    <title>Options</title>

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

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

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

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

  <refsect1>
    <title>Commands</title>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

          <para>The <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>
        </listitem>
      </varlistentry>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

          <para>The <option>-f</option> option suppresses the compilation step
          and simply reused the compiled script which last started/restarted
          Shorewall6.</para>
        </listitem>
      </varlistentry>

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  <refsect1>
    <title>FILES</title>

    <para>/etc/shorewall6/</para>
  </refsect1>

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

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

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