We installed a PostgreSQL server 8.2.6 on our OS Windows Server 2003 and TOS ETL 3.0.0. And we tried to connect to our database. But we've the following error: Connection failure. You must change the Database Settings. FATAL: no pg_hba.conf entry for host "10.51.250.222", user "postgres", database "ENTREPOT", SSL off We have the following hba.conf : # TYPE DATABASE USER CIDR-ADDRESS METHOD # IPv4 local connections: #host all all 127.0.0.1/32 md5 host all all 127.0.0.1/32 trust # IPv6 local connections: #host all all ::1/128 md5 We have the following postgresql.conf : listen_adresses = '*' ssl= off Any body have an idea of this problem ? Please help us.