RACF® provides several informational error messages in support of your implementation of program control. These messages are helpful for implementing WHEN(PROGRAM) access to data sets and SERVAUTH class resources, execute-control, and ENHANCED program security mode. They also help when implementing z/OS UNIX servers and daemons in secure systems where the BPX.DAEMON and BPX.SERVER resources are controlled in the FACILITY class. (See z/OS UNIX System Services Planning for more information about enabling z/OS® UNIX servers and daemons.)