Lesson 1: Designing an Update Management strategy in .NET framework

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Lesson 1: Designing an Update Management strategy
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An important part of being an Enterprise Desktop Administrator is ensuring that you keep the client computers that you are responsible for current with the latest updates published by Microsoft and third-party vendors. A large part of accomplishing this objective is ensuring that you have an update management strategy that is appropriate for your environment. The default configuration of computers running Windows 7 is for the computer to automatically download and install updates published on the Microsoft Update servers. Although this configuration might be appropriate for some organizations, you probably want more control over the distribution of updates. If you are responsible for a small number of computers, you can choose to install updates manually from a network share or removable USB drive. If you are in a larger organization, you might decide to use a centralized update
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ChAPTER 8
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Planning a Windows 7 Client Update Strategy
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management solution like Windows Server Update Services or System Center Configuration Manager. The method you choose for updating client computers depends significantly on your needs. Choosing the right update management strategy saves you time and saves your organization money.
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After this lesson, you will be able to:
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Understand updates. Design an update infrastructure. Determine update compliance.
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Estimated lesson time: 40 minutes
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Understanding Updates
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Updates are files that address functionality issues and address security vulnerabilities in operating systems and applications. Because vulnerabilities can be quickly exploited after the details of the vulnerability are published, you must ensure that updates that address the vulnerabilities are deployed to computers in your organization with reasonable haste. Unfortunately, updates do alter a computer s configuration, and an update that addresses one issue in an application or operating system can cause problems with other parts of the configuration. These problems might become apparent only after the update is deployed. As an enterprise desktop administrator, you must seek a balance, ensuring that you test updates adequately prior to deployment, but also ensuring that updates are deployed in a timely and effective manner.
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Update Classification
Microsoft assigns a classification to each update it publishes. The classification allows you to prioritize the deployment of updates, and you should test and deploy updates that have a more urgent classification before testing and deploying updates with less urgent classifications. The update bulletin provides details on its classification as well as the location from which you can obtain the update files if an automated update solution is not in place. Updates published by Microsoft can have one of the following three classifications:
important Updates These updates address critical security issues such as those an attacker can use remotely to take control of a computer. In some cases, Important updates address security issues for which exploit code has already been published on the Internet. In cases for which exploit code is not available, attackers quickly reverseengineer updates in an attempt to determine which vulnerabilities the update might address and use this as the basis of developing their own exploit code. You should prioritize the deployment of updates with this classification over the deployment of other updates.
Lesson 1: Designing an Update Management Strategy
ChAPTER 8
Recommended Updates These updates often address issues related to the existing functionality of the computer. Figure 8-1 shows a Recommended update that relates to application compatibility. Recommended updates are of lower priority than Important updates, But you should still deploy updates with this classification to computers in your organization in a timely manner.
figURE 8-1 Recommended update
Optional Updates
These updates include items such as language packs and driver updates. Optional updates often extend the functionality of the computer. Optional updates are strictly optional. Organizations should assess the changes that Optional updates introduce to the software ecosystem prior to rolling the updates out to desktop computers. The deployment of Optional updates is rarely time-sensitive in the way that the deployment of other updates is.
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