Let's say a Unix system has two root users.
Is it possible to prevent one of these root users from removing this user and to protect the ssh key access removal?
The goal is to ensure if a user is given root access, they are unable to remove the primary root user (i.e. the user which is responsible for the system to work correctly) while allowing each root user to install packages, changing file permissions etc. (but without them being able to affect the "sysadmin" or from removing them from the system)
I know we can create users with specific permissions (even if not root), but the scope of the question is users with full system access.