Preventing generic logins

2007-12-24 19:22:00

Greetings -

I am looking for information on how to set up a login ID that users can't
use when
they login. For instance, if I want to be able to track all my users who
su to user
oracle, I don't want them to be able to login as user oracle, I want them
to have
to login with their own user IDs and then su to oracle. I know this can be
done
but I have no clue as to how!