As I can tie the user and the computer in the moment of logon.
One of my users, me solicited one petition,can tie your user with the computer and with these not permite to this user enter in another computer, is the requeriment.
You know as to accomplish this, is possible.
the user Mgarcia, alone can enter in the computer_1 and if this user try enter with your users Mgarcia in another computer, this is not possible.
thanks for your helps.