If you have directly edited the configuration file using a text editor or changed the settings using WebAdmin, refer to the system log and the server log, confirm that no messages relating to the files below have been output.
postgresql.conf
pg_hba.conf
See
Refer to the following for information on the parameters in the configuration file:
"Configuring Parameters" in the Installation and Setup Guide for Server
"Server Configuration" and "Client Authentication" under "Server Administration" in the PostgreSQL Documentation