Hi,  Trying PostgreSQL  for the first time but not making much progress.  Get peer failure when not including a host and Ident error when including a host. Never heard of Ident authentication until today and don't know for sure if I even have such a server running.  Using Centos7, PHP7.4 using remi's repo, and PostgreSQL 12 from their repo.  Any thoughts?  Thanks   try {     //use Unix domain sockets     $dbh = new PDO("pgsql:dbname=postgres", 'postgres', 'secret'); } catch(Exception $e