Have server name in admin tool for non admin users.
For users that don't have access to the system configurations, there is no way to know what server you are connected to once in the admin tool. Client has a test system and production. Yes, they have to type the server name in to connect but they want something, either top bar or bottom bar, to state which server they are connected to. That way if they get distracted, they don't have to log out and then log back in to figure out which one they are connected to.