> 1) host=xx.xx.xx.100 = localhost? No, it is not > 2) In postgresql.conf what is listen_addresses set to? * > 3) What are the settings in /etc/hosts? Standard Ubuntu settings: 127.0.0.1 localhost 127.0.1.1 abc cde # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback ff02::1 ip6-allnodes ff02::2 ip6-allrouters Regards Daniel