Multiple Oracle Listener 11gr2

Question

Dear Expert,
There is user request to have multiple listener to control each different Oracle SID on same hosts. It is recommended to have multiple listener runing on same host machine.
How to create different listener name to control each Oracle SID on same hosts machine. There is 4 database running on same hosts. Thanks
Regard
William Voong

Answer 1

2a16cd8d-bd59-48b3-8561-15162010675e wrote:
Dear Expert,
There is user request to have multiple listener to control each different Oracle SID on same hosts. It is recommended to have multiple listener runing on same host machine.
How to create different listener name to control each Oracle SID on same hosts machine. There is 4 database running on same hosts. Thanks
Regard
William Voong
To put it bluntly, the "user" who made this request doesn't know what he's talking about and should be kept as far away from databases as is possible.
One single listener, using the default name of LISTENER and the default port of 1521, is quite capable of -- indeed, WAS DESIGNED TO -- service multiple databases of multiple versions running from multiple homes.  Multiple listeners simply adds complications, and for no gain whatsoever.
Having a listener for each database is like the telephone company having an entire switchboard for each customer.
Having a listener for each database is like the bank having a teller for each customer.
Please don't say "but this is the "user"'s requirement.  It is your job to educate the "user".