Access
RACF

What is SYS1.UADS for?

Have you ever thought what would happen if your External Security Manager (RACF, ACF2, or TSS) becomes unavailable? How will you be able to access your mainframe system? Well, SYS1.UADS is the answer to this question. This dataset contains the list of users that can access the mainframe system should […]

RACF

RACF Utilities Summary

IBM provides several utilities for RACF that can be helpful for a mainframe security administrator. Without going into much detail on each of the RACF utilities, the following table provides an explanation of what each of these utilities is for: Utility Description IRRMIN00 RACF database initialisation utility. IRRMIN00 can be […]

FAQ
RACF

What is SAF?

SAF or System Authorisation Facility is an interface defined by MVS that enables programs to use system authorisation services to control access to resources, such as datasets, MVS commands, JES, etc. SAF can either process security authorisation requests directly, or work with an External Security Manager (ESM) such as RACF, […]