Hello, When I try to connect via JDBC to PostgreSQL I get the following error message: Error -- Something unusual has occured to cause the driver to fail. Please report this exception: java.sql.SQLException: No pg_hba.conf entry for host 220.127.116.11, user aaa, database bbb However, the only lines in pg_hba.conf that are not commented out are: local all trust host all 127.0.0.1 255.255.255.255 trust host all 18.104.22.168 255.255.255.0 trust Isn't this strange? I tried this with both jdbc6.5-1.2.jar and jdbc7_0-1_2.jar from 22.214.171.124 which runs Linux and from my WinNT 4.0 (sp6) machine and for different databases. I use PostgreSQL 6.5.2 and before you ask, yes postmaster runs with the -i option set. Any comments will be more than welcome.