Change Listener Port (Single Instance)

In this Topic i will discuss how to change listener ports , The Database 10gR2 , Operating System RHEL 5.7  this demonstration will work on any Database or platforms , The Simplest way to change listener Ports

Information :
DB Version : 10.2.0.5
OS : RHEL 5.7
Listener Name : LISTENER
Old Port : 1521
New Port : 1523


Step one :  Check Listener Status .

The Below screen describe The Old Status For Listener Notice the Port is 1521 (Default One)

Step two : Stop Listener  (lsnrctl stop)

Step three : Use netca command  to Change Listener Port Follow the screens

in below screen you can choose the listener port you want to change .


Step Four : After Close netca GUI listener will start automatically


Step Five : Go to $ORACLE_HOME to change tnsnames.ora that used Old Listener port to new port.

Listener.ora will change automatically via netca GUI so no need to update it .

Step Six : Database will not register atomically after doing the above steps , so you have to set LOCAL_LISTENER Parameter Via Sqlplus like the following , i will post lsrnctl status to confirm what i saying, also notice new port that has been changed .

Now , Sqlplus / as sysdba

I Used Scope=memory to test the connection first  , after test the connection successfully you can change scope = spfile.

Step Seven : Test Connection to make sure Every User will Able To connect .

Thank you
Osama Mustafa

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