84 Introduction to the New Mainframe: Large-Scale Commercial Computing
optional Security Server feature. Chief among the functions packaged within the
Security Server is the Resource Access Control Facility (RACF).
RACF incorporates various elements of security, such as user identification and
authentication along with access control. You use RACF to protect resources and
information by controlling access to those resources.
RACF identifies you when you log on to the operating system. It does so by
requiring a user identification, the user ID that is a unique identification string.
RACF then verifies that you are the user you say you are by requesting and
checking passwords for personal accountability.
RACF also enables an installation to define ...