November 1995
Intermediate to advanced
254 pages
5h 41m
English
Content preview from Enterprise-Wide Security Architecture and Solutions Presentation Guide
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3.3 VM/ESA and RACF
Figure 47. VM/ESA and RACF
Key Points
RACF provides extended security for the VM environment.
Presentation Script
The VM operating system has many system integrity and security features.
VM/ESA exploits the System/390 architecture in several ways:
•
Addresses in a virtual machine are
virtual
addresses, and they have no
meaning outside the virtual machine in which they are generated and used.
So it is impossible for one user to access an address space of another user
unless the owner allows the other user to do so.
•
All channel program addresses are translated, except those started via
DIAGNOSE X′98′ and V=R machines. VM/ESA will identify ...
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