There's a VPN to another site with another domain. Once that was established, I could see the option for logging into that domain in the Domain dropdown in the login screen, though I never tried ...
Add the user to the 'Deny logon locally' list in User Rights Assignment for the domain, and disable the various options in the account that would allow this user to be logged in via Terminal ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results