help about service postgres

Hi.

I�m work postgres in linux red jat 7.3 and up service with the command

>> service postgresql start

The service ok. But i like run postgres in network automatic..

No automatic run the command

>> su - postgres

>> /usr/bin/postmaster -i

My question is how configure postgres for automatic run, is possible ?

thanks

Ing . Giovanni Brice�o

Novice postgres and linux