El fichero /etc/init.d/postgresql con start y stop sirve para arrancar o parar el demonio.
Pero para que acepte peticiones de red debes modificar el fichero /etc/postgresql/postmaster.init Tendrá algo parecido a esto: # Whether to allow connections through TCP/IP as well as through Unix # sockets: yes/no. # By default, for greater security, we do not allow TCP/IP access. # This means that only users on this machine can access the database. PGALLOWTCPIP=yes <---- Esta línea normalmente viene comentada # The Internet TCP port on which postmaster is to listen for connections # from frontend applications. PGPORT=5432 <------ Y esta también # Locale setting for the postmaster and backend to use: this is not # necessary for US......... Saludos