Forum OpenACS Q&A: ODBC creation from client machine to server on Postgresql Database

hi,
i have created a database "da" on Postgresql on Server(192.168.0.15) named "chistia". i want to create a connection via ODBC from my client PC(192.168.0.33) named "nabil". if i give "localhost" as ServerName during ODBC on Postgresql, it is ok.Otherwise a error message is occured.what will i do?