RBAC in AIX 5.2

Look at "smitty roles" and "smitty chuser" ... You can set the RunDiagnostics role for a regular user, but the user still needs be of group "system" (decreed by the role) for the diagnostics to be available. To run "topas" the user needs system group membership (to be able to read /dev/mem), but no specific role... To run "diag" you need be part of "system" group _and_ have the role RunDiagnostics...;-)
Or am I missreading you?
Anyway, there is a https://www.experts-exchange.com/Operating_Systems/AIX_IBMs_UNIX_OS/ TA now that one can use for AIX questions. Perhaps wouldn't change the answer:-).

-- Glenn

Friends,
Thanks for ur comments. But i am looking for the option like RBAC(available in solaris) or sudo.

Thanks
rishi

sudo is in same BULL freeware archive ....
roles based access control is available in AIX just like Gns explained

i searched for sudo and found in for AIX5.1.
I m running 5.2. Will it help?

Thanks GNS, Ghiest for your valuable time.

I installed sudo from my cd and configure.
And my problem solved.

Anyway - have a look here
http://www.sudo.ws/sudo/other.html
it mentions some AIX facilities too