Adaptive Server uses the sql.ini file to determine the address at which it should listen for clients. When you start Adaptive Server:
Determines the server name to use, usually by finding the value of the DSLISTEN environment variable or by using a command-line option.
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.