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| 作者：不明 来源：www.pccode.net 整理 发布时间：2007-1-24 15:21:14 发布人：wongrs | |
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ng this goal, we will be migrating Microsoft Exchange Server 5.5 to Exchange 2000 Server. All account administration currently needs to be performed from our IT centers. We want to remove this limitation. We also want a security infrastructure that will not need to be restructured when the accounts database reaches 40 MB. Our current arrangement of trust relationships is cumbersome to manage. The current Windows NT 4.0 domain structure requires several domains for delegation of administration. We eventually want to have a global IT facility that uses common software, standards, and procedures. This consolidation will begin during the Windows 2000 upgrade, but we do not expect to complete it during the upgrade. We want the IT facilities to be controlled from one location as necessary. However, we also want to be able to delegate certain tasks without necessarily needing to create domains for them. We are concerned that Microsoft Windows 95 and Windows 98 do not offer enough security at the client computer level. We want to increase our control and continue to standardize our client computers and applications in all departments. We want to standardize our security and management environment throughout the company as much as possible. We must minimize the disruption caused by the Windows 2000 upgrade, and the upgrade must not compromise our security. History: Contoso Research has a diverse server environment. The company uses mainframe, UNIX, Novell, Macintosh, Banyan VINES, and Microsoft servers. The current Windows NT 4.0 domain structure was configured in 1997, after the purchase of Parnell Aerospace, in an attempt to try to integrate the IT structures of the two companies. The network based on Windows NT 4.0 was configured as a coexisting server structure, and migration and interoperability were gradually implemented. Since then, all service packs up to Service Pack 7 have been applied to Windows NT 4.0. The goal of this migration is to finally remove all of the remaining Banyan VINES and Novell server Existing IT Environment: General: Contoso Research uses 25,000 personal computers. The distribution of users is shown below: Boston 2,900 Denver 4,200 San Diego 1,900 San Francisco 3,600 Seattle 2,400 St. Petersburg 2,600 Washington, D.C. 7,
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