AIX RBAC

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AIX® provided a limited RBAC implementation prior to AIX 6.1.

Beginning with AIX 6.1, a new implementation of RBAC provides for a very fine granular mechanism to segment system administration tasks. Since these two RBAC implementations differ greatly in functionality, the following terms are used:
Legacy RBAC Mode
The historic behavior of AIX roles that apply to versions before AIX 6.1
Enhanced RBAC Mode
The new implementation introduced with AIX 6.1

Both modes of operation are supported. However, Enhanced RBAC Mode is the default on a newly installed AIX 6.1 system. The following sections provide a brief discussion of the two modes and their differences, and information on configuring the system to operate in the desired RBAC mode.