SSTS Blog
Some news and tidbits that we share
Postgres by default does not allow all network clients access to the databases by simply providing a username and password. The clients must be "registered" via the pg_hba.conf file. See http://www.postgresql.org/docs/8.4/static/auth-pg-hba-conf.html for details. After changes are made to pg_hba.conf the server must be signaled to reload the configuration files using pg_ctl reload