The following is a series of examples that can be used within the pg_hba.conf . The first allows a single IP to connect to all databases, without the use of a password.

Example 6-10. Single host entry.

        host    all    192.168.1.10    255.255.255.255    trust
	

This example will reject all users from host 192.168.1.10.

Example 6-11. Example of a rejection entry

        host    all    192.168.1.10    255.255.255.255    reject
	

This example will allow any user, with the IP of 192.168.1.10 and a valid password to connect to the database template1. The password will be encrypted during authentication.

Example 6-12. Single host, single database entry.

        host     template1    192.168.1.10    255.255.255.255     crypt
	

This example allows a small subnet of computers to access the booktown database.

Example 6-13. Small network connection entry

	host    booktown    192.168.1.0   255.255.255.240   trust