a.conf File">Section 21.1</a> about how to set up the server to require
   use of <acronym class="acronym">SSL</acronym> for some or all connections.
  </p><p>
   To start in <acronym class="acronym">SSL</acronym> mode, files containing the server certificate
   and private key must exist.  By default, these files are expected to be
   named <code class="filename">server.crt</code> and <code class="filename">server.key</code>, respectively, in
   the server's data directory, but other names and locations c