RMAN and OMS default port numbers

what are the default communication ports for target and source boxes for the OMS and RMAN management tools? they can't all talk just on 1521. or do they?

please advise,
Daniel StanleyDatabase engineerAsked:
Who is Participating?
You are asking about oracle security. See

·      Oracle Database 10g Release 2 Database Security Guide Oracle Database Security Guide 10g Release 2 (10.2) http://download-west.oracle.com/docs/cd/B19306_01/network.102/b14266/toc.htm 
·      Oracle Database Security Guide 10g Release 1 (10.1) http://download-west.oracle.com/docs/cd/B14117_01/network.101/b10773/toc.htm 
·      Oracle9i Database Administrator's Guide Release 2 (9.2), See: Part IV Database Security http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96521/toc.htm 
·      Oracle9i Database Administrator's Guide Release 1 (9.0.1) See: Part IV Database Security http://download-west.oracle.com/docs/cd/A91202_01/901_doc/server.901/a90117/toc.htm 
·      Oracle8i Administrator's Guide Release 2 (8.1.6), See: Part V Database Security http://download-west.oracle.com/docs/cd/A87860_01/doc/server.817/a76956/toc.htm

About the Listener:

If a password is not set on the Listener, someone who knows just a hostname and port number (default port is 1521) has full control over the Listener. They can do the following –
�� Stop the Listener
�� Set a password and prevent others from controlling the Listener
�� Write trace and log files to any file accessible to the process owner of tnslnsr (usually Oracle)
�� Obtain detailed information on the Listener, database, and application configuration
Guy Hengel [angelIII / a3]Billing EngineerCommented:
they do use the port of the listener to connect, via the connectivity. They don't have their own ports.
Daniel StanleyDatabase engineerAuthor Commented:
so 1521 is all that needs to be open between a source and target box?
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
Daniel StanleyDatabase engineerAuthor Commented:
that is what i thought but i found this link and it worried me.

You can alter the port in listener.ora and not use the default port. I don't see any extra risk on that.
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