I have 3 oracle installation on 1 server.
The listener for 8.1.7 listens on port 1521 (that's not a problem).
I have 2 installation of version 9.2 (mandatory in this case), each having it's own listener, both configured on port 1527.
Can both be up and running (and working fine) listening on port 1527 ?
Note : I don't want to discuss other ways to do this (I know what to do). I just want to know if you have a configuration like this or if you tried it.