changing service name

We are running ORACLE 8i on a SUN OS 5.8.

I would like to change our service name from what it is now (database/instance name) to a new service name (for security purposes). If I take out the old entry from our listener sid list, will this be enough ?
Or will the instance still register itself under the old name (which is the database/instance name) ?
Thank you. Received on Wed Nov 29 2006 - 13:35:32 CST