ter
   <a class="xref" href="runtime-config-connection.html#GUC-SSL">ssl</a> to <code class="literal">on</code> in
   <code class="filename">postgresql.conf</code>.  The server will listen for both normal
   and <acronym class="acronym">SSL</acronym> connections on the same TCP port, and will negotiate
   with any connecting client on whether to use <acronym class="acronym">SSL</acronym>.  By
   default, this is at the client's option; see <a class="xref" href="auth-pg-hba-conf.html" title="21.1. The pg_hb