Changing host configuration $ vi /var/lib/pgsql/8.4/data/pg_hba.conf
Add postgresql to startup process $ chkconfig postgresql-8.4 on
Start postgresql service $ service postgresql-8.4 start
Access postgresql $ su - postgresql $ psql
Create database postgres-# create database test
List databases postgres-# \list
Exit postgresql postgres-# \q (or \quit)
Connect to database postgres-# \c test (\connect test)
