User IDs for connection security

The user ID used for connection security depends on the type of connection.

Connection type User ID contents
Batch connection The user ID of the connecting task. For example:

  • The TSO user ID
  • The user ID assigned to a batch job by the USER JCL parameter
  • The user ID assigned to a started task by the STARTED class or the started procedures table

CICS connection The CICS address space user ID.
IMS connection The IMS region address space user ID.
Channel initiator connection The channel initiator address space user ID.
Parent topic: User IDs for security checking on z/OS