<title>Locking</title>

      <para>Some applications (e.g. <application>mutt</application>)

        require file locking to operate correctly.  In the case of

        <acronym>NFS</acronym>, <application>rpc.lockd</application>

        can be used for file locking.  To enable it, add the following

        to the <filename>/etc/rc.conf</filename> file on both client

        and server (it is assumed that <acronym>NFS</acronym>

        client and server are configured already):</para>

      <programlisting>rpc_lockd_enable="YES"

rpc_statd_enable="YES"</programlisting>

      <para>Start the application by using:</para>

      <screen>&prompt.root; <userinput>/etc/rc.d/nfslocking start</userinput></screen>

    <sect2>