          Use SSPI to authenticate the user. This is only
          available on Windows. See <a class="xref" href="sspi-auth.html" title="21.7. SSPI Authentication">Section 21.7</a> for details.
         </p></dd><dt><span class="term"><code class="literal">ident</code></span></dt><dd><p>
          Obtain the operating system user name of the client
          by contacting the ident server on the client
          and check if it matches the requested database user name.
          Ident authentication can