><hr /></div><div class="sect1" id="AUTH-PG-HBA-CONF"><div class="titlepage"><div><div><h2 class="title" style="clear: both">21.1. The <code class="filename">pg_hba.conf</code> File <a href="#AUTH-PG-HBA-CONF" class="id_link">#</a></h2></div></div></div><a id="id-1.6.8.8.2" class="indexterm"></a><p>
   Client authentication is controlled by a configuration file,
   which traditionally is named
   <code class="filename">pg_hba.conf</code> and is stored in the database
   cluster's data directory.
   (<acron