Regardless of which settings you choose for the -x option, the database server always listens for connection broadcasts using
the shared memory protocol.
By default, the personal database server starts only the shared memory protocol, while the network database server starts
all available protocols.
You can also specify the following values for the -x option:
Listen for connection attempts by the client using all communications protocols that are supported by the server on
this platform, including shared memory. This is the default.
Listen for connection attempts by the client using only the shared memory protocol.
Listen for connection attempts by the client using the TCP/IP protocol. The TCP/IP protocol is supported by the network
server on all operating systems, and by the personal database server for same-computer communications.
By default, the database server listens for broadcasts on port 2638, and redirects them to the appropriate port. This usually
ensures a connection.
You can override this default and cause the server not to listen on port 2638 by setting the option -sb 0, or by turning off
the BroadcastListener option (BroadcastListener=0).
Use the -x option to specify which communications protocols you want to use to listen for client connection broadcasts.
If you do not specify the -x option, the personal database server attempts to listen for client connection broadcasts using
shared memory, and the network database server attempts to listen for client broadcasts using shared memory and TCP/IP.
For information about securing shared memory connections on Unix, see Security tips.
For some protocols, additional parameters may be provided, in the format