The principal name is the name the server uses to authenticate with the Kerberos Key Distribution Center (KDC). When you have multiple instances of Adaptive Server running, you must have different principal names for each Adaptive Server.
In Adaptive Server version 12.5.4, you can use a new data
server option and a new environment variable to specify a principal
name different from the Adaptive Server name. Adaptive Server name
is specified by environment variables DSLISTEN and DSQUERY, or the
dataserver command line option "-s servername".
