Single sign-on is an authentication method that eliminates the need for users to enter credentials every time they initiate ...

Single sign-on is an authentication method that eliminates the need for users to enter credentials every time they initiate a remote session. By enabling single sign-on, users who have domain accounts can log on to their client computer by using a password or smart card, and then gain access to a Windows Server 2008-based terminal server without being asked for their credentials again.