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Lesson Review
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The following questions are intended to reinforce key information presented in this lesson. If you are unable to answer a question, review the lesson materials and try the question again. You can find answers to the questions in the Questions and Answers section at the end of this chapter. 1. What is the default mode when creating an MMC
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2. Can a snap-in have focus on both the local computer and a remote computer simultaneously
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3. If you want to limit the access of a snap-in, how do you construct the MMC that contains the snap-in
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Lesson Summary
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The MMC is a powerful framework for organizing and consolidating administrative snap-ins. The hierarchical display, similar to that of Windows Explorer, offers a familiar view of snap-in features in a folder-based paradigm. There are two types of snap-ins, stand-alone and extension, with extensions appearing and behaving within the MMC based on the context of their placement. Any console can be configured to work in either of two modes, Author or User, with the User mode supporting various levels of restricted functionality in the saved console.
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Lesson 2
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Managing Computers Remotely with the MMC
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Lesson 2: Managing Computers Remotely with the MMC
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In Lesson 1, you learned that you can build a customized MMC with snap-ins that are focused on remote computers. In addition, many snap-ins allow you to change the focus of the snap-in by right-clicking the snap-in in the console tree and choosing a command such as Connect To Another Computer, Connect To Domain, Connect To Domain Controller, and so forth. Using the MMC to remotely manage another system (as shown in Figure 2 3) can save you the time and cost of a physical visit to the computer.
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Figure 2-3
Connecting to a user s computer with the Computer Management console
After this lesson, you will be able to
Construct an MMC to manage a computer remotely
Estimated lesson time: 10 minutes
Setting Up the Snap-in for Remote Use
To connect to and manage another system using the Computer Management console, you must launch the console with an account that has administrative credentials on the remote computer. If your credentials do not have sufficient privileges on the target computer, snap-ins will load, but they either will function in read-only mode or will not display any information.
2-10
2
Administering Microsoft Windows Server 2003
You can use Run As, or secondary logon, to launch a console with credentials other than those with which you are currently logged on.
When you re ready to manage a remote system, you may open an existing console with the appropriate snap-in loaded or configure a new MMC and configure the remote connection when you add the snap-in. To remotely manage a system using the existing Computer Management console, for example, follow these steps: 1. Open the Computer Management console by right-clicking My Computer and choosing Manage from the shortcut menu. 2. Right-click Computer Management in the console tree and choose Connect To Another Computer. 3. In the dialog box shown in Figure 2-4, type the name or IP address of the computer or browse the network for the remote computer, and then click OK to connect.
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Figure 2-4 Setting the Local/Remote Context for a snap-in
Once connected, you can perform administrative tasks on the remote computer. When you connect to a remote system using the MMC, you connect using remote procedure calls (RPCs). If the remote system has Windows Firewall enabled, the default firewall configuration will prevent inbound RPC traffic. To enable remote administration using the MMC, configure the firewall exception for remote administration. This exception opens TCP ports 135 and 445 and adds program exceptions for Svchost.exe and Lsass.exe to allow hosted services to open additional, dynamically assigned ports, typically in the range of 1024 to 1034. It also enables a computer to receive unsolicited incoming Distributed Component Object Model (DCOM) and RPC traffic. To configure this exception, open the local or a domain-based Group Policy Object (GPO) and navigate to the Computer Configuration, Administrative Templates, Network, Network Connections, Windows Firewall node. Then open the Domain Profile, which specifies firewall configuration when a system is connected to the domain. In the details pane, double-click the Windows Firewall: Allow Remote Administration
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