The listener daemon on the server provides three functions:
It listens for connection requests.
It validates the server login name.
It sets up a direct communication line between the client and server.
The listener daemon 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 generates a database process for that user. The listener
daemon redirects communications so that the user and the
database process communicate directly with each other over the
network. It then resumes listening for more connection
requests.
You manually start the listener daemon on the server after
ALLBASE/SQL has been installed.
You can shut down the listener daemon by terminating the
listener process. Once it is down, no further connection
requests are accepted. However, any remote database activity
that is already in progress terminates normally and is not affected by
the shutdown.
Listener and network status and errors are recorded in a
listener log file (see the next section, "ALLBASE/NET Files on
HP-UX") that you can check in the event of problems with remote
access.
For instructions on starting the listener daemon and how to
handle error conditions, refer to "Starting the Listener Daemon
on an HP-UX Server" in the "Setting Up ALLBASE/NET" chapter.
