Services coordinate their sessions with the help of a listener, a process on the server that receives connection requests on behalf of a client application. Listeners are configured to "listen on" protocol addresses for a database service or non-database service.
Protocol addresses are configured in the listener configuration file, listener.ora, for a database service or a non-database service.
An Oracle8i or later database service automatically registers its information with the listener, such as its service names, instance names, and load information. This feature, called service registration, does not require service configuration in the listener.ora file.
Other services, including an Oracle8 database require service configuration in the listener.ora file.
Once the listener is configured, the listener can be managed with Listener Control utility.
For information about configuring the listener, see Chapter "Configuring and Administering the Listener" in the Oracle Net Services Administrator's Guide.
Oracle Net Services Configuration Overview
Copyright © 1996, 2011, Oracle and/or its affiliates.All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
Other names may be trademarks of their respective owners.