How to start the listening program in oracle

Oracle listener is used to manage client connection requests. Startup steps include: Log in to the Oracle instance. Find the listener configuration. Use the lsnrctl start command to start the listener. Use the lsnrctl status command to verify startup.

How to start the Oracle listener

The Oracle listener is a key component of the Oracle database and is responsible for listening Takes incoming client connection requests and routes them to the appropriate database instance. Starting the listener is critical to ensuring that the database server is accessible.

Steps to start the Oracle listener:

1. Log in to the Oracle instance:Use operating system credentials to log in to the server hosting the Oracle instance .
2. Find the listener configuration:Navigate to the location of the listener configuration file. Typically located at$ORACLE_HOME/network/admin/listener.ora.

3. Start the listener:Use the following command to start the listener:

   lsnrctl start

   Copy after login

   This will start the listener and make it listen for connection requests from clients.

4. Verify startup:Verify that the listener has started using the following command:

   lsnrctl status

   Copy after login

   This will display the status of the listener and what is listening port.

Other tips:

• If the listener fails to start, please check whether the listener configuration file is configured correctly.
• Ensure that the port the listener is listening on is not in use by other applications.
• If you receive an error message when starting a listener, consult the Oracle documentation or contact Oracle Support for assistance.

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