1. Nếu cần thiết, đăng nhập vào DC Glasgow với các tài khoản Kim_Akers. Nhấp vào Add Host. Click vào OK để xóa hộp thông báo DNS. 7. Nhấp vào Done. Đảm bảo rằng mới Kế hoạch Tên Nghị quyết và Nghị định thư Internet biểu | 212 Chapter 4 Designing Active Directory Administration and Group Policy Strategy Figure 4-21 Compatible IDs GUIDs A GUID defines a device setup class which the device manufacturer assigns to a device in the device driver package. The device setup class groups devices that are installed and configured in the same way. For example all CD drives belong to the CDROM device setup class and use the same co-installer. When Windows Server 2008 starts it builds a tree structure in memory with the GUIDs for all the detected devices. In addition to the GUID for the device setup class of the device itself Windows Server 2008 might need to insert the GUID for the device setup class of the bus to which the device is attached for example USB . When you use device setup classes to control users installation of device drivers you must specify the GUIDs for all the device s device setup classes or you might not achieve the results you want. In addition GUIDs are held in the HKLM CurrentCon-trolSet Control Class ClassGUID registry key and are not as easily obtained as hardware IDs. For these reasons hardware IDs rather than GUIDs are typically used to specify the devices than can or cannot be installed. Figure 4-22 shows a hardware ID list specified for the Allow Installation Of Devices That Match Any Of These Device IDs setting. Lesson 2 Designing Enterprise-Level Group Policy Strategy 213 Figure 4-22 Specifying hardware IDs Exam Tip The most likely scenario to appear in the 70-647 examination is one in which users cannot install devices but administrators can. The settings for this scenario are shown in Figure 4-19. The next most likely scenario is that users can install only allowed devices although administrators can install any device. This requires the settings shown in Figure 4-19 plus enabling the Allow Installation Of Devices That Match Any Of These Device IDs setting and adding hardware IDs as shown in Figure 4-22. Planning Authentication and Authorization Authentication .
