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How to Change Default Port of Oracle Database Listener

How to Change Default Port of Oracle Database Listener         Applies to:             Oracle Enterprise Linux – Version: 7             Oracle Database 11gR2             Description: I want to change the default port of Oracle Database Listener. Solution:             To change the default port of Oracle Database Listener do the following steps: 1.     Stop Oracle Database Listener #   lsnrctl stop 2.     Open $ORACLE_HOME/network/admin/listener.ora file and change the port from default 1521 to 1530 or as you wish 3.     Open $ORACLE_HOME/network/admin/tnsnames.ora file and change the port from default 1521 to 1530 or as you wish to change 4.  ...