Clients use directory services to determine how to connect to a server.
When a client connects to a server, it:
- Determines the name of the server either
programmatically or by referring to the DSQUERY
environment variable. If the application user has
not set DSQUERY, the runtime value for the server
name defaults to the SYBASE environment
variable.
- Looks
in directory services for an entry that matches
the name of the server.
- Uses
the network information provided by the directory
services entry to connect to the server. If the
client cannot connect the first time, it makes
additional attempts according to the delay and
retry numbers indicated in directory services. If
no matching entry is found, an error message is
written to the client’s standard error file. If
multiple networks are supported, the client
attempts to connect using the information in the
second network address entry for the server.
See the Open/Client Programmer’s Supplement for your client platform or the
appropriate Open/Client documentation for a more
detailed discussion about client connections.