An important part of Windows NT administration is control over user access to systems within and across domains. When a user logs on to an NT system, NT validates the user's account and authorizes access to the appropriate system or domain. To manage user access, you need to understand the Windows NT logon process and the three types of interactive logons--local, domain, and trusted domain--that NT uses to validate accounts on a local or remote system. You initiate another type, a remote logon, when you map a network drive in Explorer or File Manager or enter a net use command from a console window or script file. Before reading further, you need to be familiar with the different types of user and group accounts (see "Windows NT Accounts") and how to create or modify them with User Manager. You also need to understand how Windows NT creates a computer account when you add a new workstation or server to a domain, either during the installation process or explicitly in Server Manager. And finally, you need to know how the system creates interdomain trust accounts when you establish a domain trust relationship in User Manager.
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