When attempting to add a username in PAM in lower and uppercase in PAM, we get the following error:
PAM-CM-0579: Error. Attempt to create a duplicate entry.
Release : 3.4.x
Component : PRIVILEGED ACCESS MANAGER
In PAM, each account name that is tied to the same Application Name, must be case-insensitive unique. In most cases, the underlining application (IE: Windows) is not case sensitive.
However on Unix/Linux platforms the user ROOT and root are two different users. To accomplish this use case, you must create 2 different Unix type with different name for the same Unix/Linux device.