The Listener

The listener on the server provides three functions:

The listener monitors a specified datacomm port for any incoming connection requests. When it receives a request, it validates the server login name for the user on the client and then creates a database process for that user. The listener redirects communications so that the user and the database process communicate directly with one another over the network. It then resumes listening for more connection requests.

You manually start the listener on the server after ALLBASE/SQL has been installed. When you stop running the listener, no further connection requests are accepted. However, any remote database activity that is already in progress will not be affected and will terminate normally.

Listener and network status and errors are recorded in a listener log file (HPDANSLG.PUB.SYS) that you can check in the event of problems with remote access. The listener must not be running for this to work.

For instructions on starting and using the listener and an example of a listener log file, refer to "Setting Up ALLBASE/NET on an MPE/iX Server" in the "Setting Up ALLBASE/NET" chapter.