When local area networks (LANs) first appeared in the business world, their primary functions were to share files and printers. These are still critical applications for most business networks, but networks are able to provide many other functions as well. Virtually all business owners want to provide their users with access to the Internet and email, but they must be able to do so securely. Many businesses also want to host their own websites and run specialized applications. Windows Server 2008 R2 provides many of these functions, and other Microsoft products provide those that it does not provide. For example, Microsoft Exchange Server 2010 SP1 provides comprehensive email services and Microsoft SQL Server 2008 R2 provides a robust ...

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