On Mon, May 15, 2017 at 12:55:48PM -0700, Ken Tanzer wrote: > Hi. On a Centos 6.9 server (in the cloud with Rackspace), I'm wanting to > install PGDG 9.6 alongside the already-running 9.2. After installing the > 9.6 packages (and even before doing an initdb), I am no > longer able to make a local connection to the 9.2 server. Instead I get > the message: See eg. https://www.postgresql.org/message-id/21044.1326496507@xxxxxxxxxxxxx https://www.postgresql.org/message-id/0A21BC93-7B9C-476E-AAF4-0FF71708E87F@xxxxxxxxxxxxxxxx I'm guessing you upgraded the client libraries, which probably change the (default) socket path. Your options are to specify path to the socket (maybe in /tmp for running PG92?), change to TCP connection, or specify server option unix_socket_directories. Justin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general