Adaptive Server uses the sql.ini file to determine the address at which it should listen for clients. When you start, the Adaptive Server:
Determines the name of the Adaptive Server by finding the value of the DSLISTEN environment variable.
Looks in the sql.ini file for an entry that matches the specified server name.
Looks in the libtcl.cfg file for an entry that matches the Net-Library driver name associated with the server entry in the sql.inifile.
Loads the specified Net-Library driver.
Uses the information from the MASTER entry in the sql.ini file to determine the address at which it should listen for client connection requests.