tnsrctl - Oracle Listeners Management

The database listener process reads the listener.ora and sqlnet.ora files for its configuration; the database administrator (DBA) manages it by using the lsnrctl command-line utility. You can use the utility to do these things to the listener:

Start

Stop

Check status

There is no direct relationship between the listener process and the database itself; the processes operate independently.

To start the listener, issue the lsnrctl start command:

c:\> lsnrctl start

If you need to stop the listener, you can issue the lsnrctl stop command:

c:\> lsnrctl stop

To determine what databases the listener is configured to service requests, you can read the listener.ora configuration file. Or you can issue the lsrnctl status command:

c:\> lsnrctl status