Re: privileged user in RedHat

On Wed, 28 Aug 2024 12:01:14 +0200, Marco Moock wrote:

On Wed, 28 Aug 2024 03:53:18 -0400 "186282@ud0s4.net"
<186283@ud0s4.net> wrote:
 

On 8/28/24 2:21 AM, Marco Moock wrote:

Hello!
 
Is there any definition for the word "privileged user" in the Linux
(especially RedHat) environment? 
 
I am currently learning RedHat OpenShift and the courses include a
question where the answer is that 2 containers run with UID 27 are
called privileged. (DO190 ch03s08 if you have access).
 
I am aware that it is common that normal (real people) users start with
1000 ongoing, server process users are below. Is there a difference on
the IDs or is that just tradition?

 
   User 'root' is the only, initially, "privileged user".

 
 
Ok, but what does privileged then mean in the RHEL/ROCP environment?

Strictly speaking "privileged user" just means a user with sufficient
permissions to perform the task. That user is often root since root
can do anything. But it could be a regular user that has been placed into
the appropriate group (/etc/group) or configured via SELinux etc..

At the kernel level, there are no special UIDs except 0 for root.

For openshift, idk, but these might be helpful
https://www.redhat.com/en/blog/a-guide-to-openshift-and-uids
https://learn.redhat.com/t5/Containers-DevOps-OpenShift/Container-image-on-the-exam/td-p/35223