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- DOCUMENT:Q101232 26-AUG-1993 [W_NT]
- TITLE :INF: When a Workstation Joins a Windows NT Domain
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- --------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- --------------------------------------------------------------------
-
- This article covers the following information:
-
- - When a Workstation Joins a Windows NT Domain
- - Additional Notes on Joining Domains
- - Re-joining a Domain
- - Background on Windows NT Domains
-
- When a Workstation Joins a Windows NT Domain
- --------------------------------------------
-
- When a Windows NT workstation joins a domain, it appears in computer
- browsers under the domain name it just joined and is able to use and
- reference user accounts and global groups created in that domain. If
- the domain trusts other domains, the user accounts and global groups
- of those other trusted domains are also available for use on the
- workstation. Domain and trusted domain user accounts may be used to
- log on to the workstation or to allow remote connections to it,
- referenced to grant permissions to use resources such as a shared
- directory or printer, and referenced to grant user rights on the
- workstation.
-
- When a workstation joins a Windows NT domain, the following things
- take place:
-
- 1. The workstation shows up in computer browser lists as being within
- the domain, just as it does when it belongs to a workgroup.
-
- 2. The workstation can use accounts and global groups (but not local
- groups) from its domain and from any domain that its domain trusts.
- (User accounts may be logged on to or used to remotely connect to
- the workstation; user accounts and global groups may be granted
- permissions to resources such as files, directories, printers, and
- may also be granted user rights in the User Manager).
-
- 3. By default, the Domain Admins global group from the domain is added
- to the Administrators local group of the workstation, thus making
- the workstation remotely adminsterable by domain administrators.
-
- 4. By default, the Domain Users global group from the domain is added
- to the Users local group of the workstation, thus making it
- possible for any user in the domain to log on or connect to the
- workstation.
-
- Items 3 and 4 are merely default settings. These global groups may be
- removed from the respective local groups at any time by any
- administrator.
-
- Additional Notes on Joining Domains
- -----------------------------------
-
- - Workstations that are members of a domain may still have their own
- local user accounts and local groups and are still subject only to
- local security policies.
-
- - If a workstation doesn't belong to a domain, a local account must
- be maintained for every user that is to log on to or connect to the
- computer. By default, the Guest account is enabled, so that anybody
- can remotely connect to a Windows NT computer as a guest. They will
- only gain access to items which grant access permissions or user
- rights to the Guest account, the Guests local group, or to the
- Everyone "group". This is not the case with Windows NT Advanced
- Server, however. With Windows NT Advanced Server, the Guest account
- is disabled by default.
-
- NOTE: On a Windows NT Advanced Server machine, the Guest account is
- disabled by default.
-
- - By default, the domain administrator can remotely or locally
- administer the workstation.
-
- - By default, the users of the domain can log on to the computer
- locally or connect to it remotely. Of course, all security
- protections are still in effect, so logging on or connecting to a
- workstation doesn't compromise protected information.
-
- - To make a workstation appear in the computer browser list along
- with other resources, all that is necessary is to add the computer
- to the workgroup. Note that a domain may be used as a workgroup by
- any Windows NT or Windows for Workgroups computer without having
- any security implications whatsoever.
-
- - Computers that are members of a domain or that use a domain as a
- workgroup will all show up in the Server Manager main window. To
- distinguish between computers that are members of a domain, filter
- the main window using the Show Domain Members Only option from the
- View menu. Also, workstations in the main window that appear
- grayed-out are members of the domain which are currently not turned
- on or are not running the Server service. Normal workstations in
- the main window are currently on and running the Server service,
- but may not be members of the domain. A computer account must be
- created in the Server Manager using the Computer Add to Domain
- command in order for a workstation to be added to the domain. It is
- possible for a domain administrator to perform this step during
- setup of the workstation.
-
- Note: Server Manager is available only with the Windows NT Advanced
- Server and the Windows NT Resource Kit.
-
- Background on Windows NT Domains
- --------------------------------
-
- Each workstation has its own user account and security database.
- Information such as the list of accounts, passwords, and group
- memberships are stored in this database as well as account, user
- rights, and audit policies. The main advantage of Windows NT Advanced
- Server domains is that they allow a set of computers to share the same
- user account and security information. For the Windows NT Advanced
- Server computers in a domain, the entire user account and security
- database is shared. So, accounts, global groups, and local groups are
- all shared by all Windows NT Advanced Servers in a domain. In
- addition, the account policies, user rights, audit policies, and trust
- relationships are all shared by all the servers. Windows NT
- workstations can access and use user accounts and global groups
- defined on the Windows NT Advanced Server domain that it is a member
- of or domains that its domain trusts. However, all local groups and
- security policies are controlled solely on the workstation and are not
- inherited from the domain.
-
- Additional reference words: 3.10 netsrv
-
- =============================================================================
-
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-
- Copyright Microsoft Corporation 1993.