CRITICAL SKILL 4.4
Use the Oracle Net Listener
The Oracle Net Listener (listener) listens on a network port (listening endpoints) for incoming database requests. A listening endpoint defines the protocol addresses the listener is defined to listen on. Listening endpoints include HTTP, FTP, WebDAV, and Oracle XML. Look at the ORACLE XML DB Developer’s Guide for more detail on registering FTP, HTTP, and WebDAV listening points.
The process is fairly simple. The listener receives a request and hands the request to a service handler, which is a server process that runs on the same platform as the Oracle database server. The service handler can be a dedicated server or a dispatcher, the latter of which works with shared servers.
The PMON background ...
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