/admin : Used to connect to a session for administering a Windows server.
This is the most secure mode. It ensures that the Kerberos Ticket Granting Tickets (TGTs) remain on the client machine. If the remote server requests authentication to another resource, the request is proxied back to the client. /admin : Used to connect to a session
: Connects you to the session for managing the server, critical if the server reports it has exceeded maximum connections. /f : Forces the session to start in full-screen mode. /admin : Used to connect to a session