Remote Access in PostgreSQL databases

When we need to allow to someone to access our PostgreSQL database in our machine, we need to put following code in our pg_hba.conf file.

# Allow a user from host 192.168.12.10 to connect to database
# "postgres" if the user's password is correctly supplied.
#
# TYPE DATABASE USER CIDR-ADDRESS METHOD
host postgres all 192.168.12.10/32 md5

This is a useful site regarding that.

http://developer.postgresql.org/pgdocs/postgres/auth-pg-hba-conf.html