When you attempt to connect to a PostgreSQL server, the server accepts or rejects the connection based on your identity and whether or not you can verify your identity by supplying the correct password.
By default, PostgreSQL gives "postgres" as username and leave the password field blank.
- Host Name/IP Address: localhost
- Port: 5432
- Initial Database: template1
- User Name: postgres
- Password: <blank>
See also:
General Settings for PostgreSQL