ns listenerOracle TNS Listener: Unlocking Database Connectivity.（oraclet）
Today’s companies rely heavily on databases to store and secure business data, making connections between the databases and the application server essential. Oracle TNS Listener is the key to forming this connection and an integral part of a reliable, secure and fast database system.
Oracle TNS Listener is a software process that facilitates communications between clients and the Oracle Database. A TNS Listener is necessary for ODBC connections, Oracle Enterprise Manager, SQL*Plus, and other applications to connect to an Oracle Database. Essentially, a TNS Listener is what makes it possible for users to connect to an Oracle database and request access to a particular service.
The Oracle TNS Listener can be configured and managed through the lsnrctl command-line interface. It is the command line that allows you to configure the Oracle TNS Listener and its specific parameters, including the port and protocol used by the Listener. In addition, lsnrctl offers a variety of commands and options for managing and configuring the Oracle TNS Listener.
The below command is used to start an Oracle TNS Listener:
$ lsnrctl start
To stop the Listener, use the following command:
$ lsnrctl stop
The status of the Listener can be checked using the below command:
$ lsnrctl status
If you are troubleshooting or making configuration changes, the lsnrctl reload command lets you reload the configuration data without shutting down the Listener.
Oracle also recommends that you set up an Oracle TNS Listener to run as a system service in order to start, stop, and restart the Listener when necessary. This helps to ensure that the Listener will automatically be started in the event of a system restart or crash.
Due to the importance of an Oracle TNS Listener, it is critical that the Listener is monitored and maintained. Any problems or errors encountered can be quickly identified and addressed, so the system remains running at optimal efficiency.
Oracle TNS Listener is essential for connecting, managing, and monitoring Oracle databases. By being aware of the importance of this technology and understanding the commands to configure and manage the TNS Listener, organizations can be sure of a secure and reliable connection between clients and the Oracle Database.
