returned PAM_CONV_AGAIN.
            </p></dd><dt><span class="term">PAM_SERVICE_ERR</span></dt><dd><p>
              The user name is not valid or the passwd file is unavailable.
            </p></dd><dt><span class="term">PAM_PERM_DENIED</span></dt><dd><p>
              The user is not listed in the passwd file.
            </p></dd></dl></div><p>
    </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_localuser-examples"></a>6.18.5. EXAMPLES</h3></div></div></div><p>
      Add the following lines to <code class="filename">/etc/pam.d/su</code> to
      allow only local users or group wheel to use su.
      </p><pre class="programlisting">
account sufficient pam_localuser.so
account required pam_wheel.so
      </pre><p>
    </p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a name="sag-pam_localuser-author"></a>6.18.6. AUTHOR</h3></div></div></div><p>
        pam_localuser was written by Nalin Dahyabhai &lt;nalin@redhat.com&gt;.
      </p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sag-pam_listfile.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sag-module-reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sag-pam_loginuid.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">6.17. pam_listfile - deny or allow services based on an arbitrary file </td><td width="20%" align="center"><a accesskey="h" href="Linux-PAM_SAG.html">Home</a></td><td width="40%" align="right" valign="top"> 6.19. pam_loginuid - record user's login uid to the process attribute</td></tr></table></div></body></html>