Disable web UI access for Operating System Administrator

As a Security Administrator, you can modify web UI access control for the Operating System Administrator.

To disable web UI access control

Sign in to the web UI.
On the left, select Security > RBAC.
On the right, click Role-based access control settings.
Disable Web UI access for Operating System Administrator. By default, the option is enabled. If the option is disabled, the Operating System Administrators (users or groups) need to have the RBAC Administrator role.