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Lesson 1
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Understanding Group Policy
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Items To Be Displayed list, clear any categories you do not want to see. By default, all types of settings are selected (that is, are displayed).
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If you want to hide settings that are not configured, select the Only Show Configured Policy Settings check box. If you select this check box, only Enabled or Disabled settings are visible. If you want to hide Windows NT 4 style system policy settings, select the Only Show Policy Settings That Can Be Fully Managed check box. Microsoft recommends selecting this check box, and it is selected by default.
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Figure 10-5 The Filtering dialog box
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3. Click OK.
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Administrative Templates
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The previous section discussed the Administrative Templates node in a GPO, which contains the registry-based Group Policy settings you set on the Group Policy Object Editor. However, an administrative template is actually a text file used to generate the user interface for the Group Policy settings you can set on the Group Policy Object Edi tor. In Windows Server 2003, administrative templates have the .adm file name exten sion, as they did in Windows NT 4. In earlier versions of Windows, administrative templates were text files using the American National Standards Institute (ANSI) char acter set. They created a namespace within the System Policy Editor for convenient editing of the registry, a friendlier user interface than the Registry Editor (Regedit.exe). In Windows Server 2003 and Windows 2000, administrative templates are Unicodebased text files. The Group Policy Object Editor replaces the System Policy Editor and
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10
Implementing Group Policy
gives you greater control over configuration settings. Administrative templates is the only area of Group Policy (the other areas being software settings and Windows set tings) that allows you to make modifications by adding new administrative templates. There are three types of administrative templates:
Default Administrative templates provided with Windows Server 2003, as described in Table 10-2. Vendor-supplied Administrative templates provided with software applications designed to run on Windows Server 2003. You might need to install these tem plates separately or download them from a Web site. For example, you can download the Microsoft Office 2000 or Microsoft Windows XP Resource Kit tools from the Microsoft Web site (www.microsoft.com) in order to implement Office 2000 or Windows XP Group Policy settings. Custom Templates created using the .adm language to further control computer or user settings. Custom templates are generally created by application developers.
Note A detailed discussion on creating custom administrative templates is beyond the scope of this course. You can find the details about creating your own administrative tem plates by searching for .adm Language Reference on the Microsoft TechNet Web site (www.microsoft.com/TechNet).
Table 10-2
Windows Server 2003 Default Administrative Templates
Description
Installed in Group Policy by default; contains system settings for Windows 2000 and Windows Server 2003 clients. Installed in Group Policy by default; contains Internet Explorer poli cies for Windows 2000 and Windows Server 2003 clients. Contains Windows Media Player settings for Windows 2000 and Windows Server 2003 clients. Contains NetMeeting settings for Windows 2000 and Windows Server 2003 clients. Contains Windows Update settings for Windows 2000 and Windows Server 2003 clients.
Administrative
Template System.adm Inetres.adm Wmplayer.adm* Conf.adm* Wuau.adm
* This tool is not available on the 64-bit versions of the Windows Server 2003 family.
Lesson 1
Understanding Group Policy
10-15
How Group Policy Affects Startup and Logging On
The following sequence shows the order in which computer configuration and user configuration settings are applied when a computer starts and a user logs on. 1. The network starts. Remote Procedure Call System Service (RPCSS) and Multiple Universal Naming Convention Provider (MUP) are started. 2. An ordered list of GPOs is obtained for the computer. The list contents depend on the following factors:
Whether the computer is part of a Windows 2000 or Windows Server 2003 domain, and is therefore subject to Group Policy through Active Directory. The location of the computer in Active Directory. If the list of GPOs has not changed, then no processing is done. You can use a Group Policy setting to change this behavior.
3. Computer configuration settings are processed. This occurs synchronously by default and in the following order: local GPO, site GPOs, domain GPOs, and OU GPOs. No user interface is displayed while computer configuration settings are being processed. See the section How Group Policy Is Applied for details about GPO processing. 4. Startup scripts run. This is hidden and synchronous by default; each script must complete or time out before the next one starts. The default timeout is 600 sec onds (10 minutes). You can use several Group Policy settings to modify this behavior. 5. The user presses Ctrl+Alt+Del to log on. 6. After the user is validated, the user profile is loaded, governed by the Group Policy settings in effect. 7. An ordered list of GPOs is obtained for the user. The list contents depend on the following factors:
Whether the user is part of a Windows 2000 or Windows Server 2003 domain, and is therefore subject to Group Policy through Active Directory. Whether loopback is enabled and the state (Merge or Replace) of the loopback policy setting. Refer to the section How Group Policy Is Applied for more information about loopback. The location of the user in Active Directory. If the list of GPOs to be applied has not changed, then no processing is done. You can use a policy setting to change this behavior.
10-16
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