CoreSecurity22 min
Security and RACF fundamentals
Every access on this platform is checked. Understanding who you are, what you are in, and what is protected explains most of the errors you will hit.
What you will be able to do
- Explain how an access decision is made
- Read an ICH408I violation message and know what to request
- Describe the difference between a user, a group and a profile
Lessons
- Users, groups and profilesThe security manager holds three things: who you are, which groups you belong to, and what rules protect each resource. An access decision is the intersection of those three.
- Reading a violation and asking for the right thingWhen access is denied you get a specific message naming the userid, the resource, and the access that was attempted.
- Working safely in a regulated environmentMainframe environments carry the systems regulators care most about. That shapes daily behaviour in ways that are worth understanding early, because they are not arbitrary.
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