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One of the most-often-neglected security measures is protecting clients. Systems administrators seem to understand the implications of managing security on the server-side, since that is what they directly control. However, potential unauthorized users usually start their hack attempts from the client side. There are several steps that you can take to make sure that information stored on clients is relatively safe. The Windows 95/98 operating systems were not designed to meet strict security standards and thus offer only limited security capabilities. Because they are targeted toward home users, they lack many of the security features available in Windows NT. However, many organizations have still deployed Windows 95/98 computers in their environments for all types of users. Many applications that run on Windows NT can run with little or no modifications on the Windows 9x platform. The major source of concern regarding security of client systems is the file system. Windows 95/98 support the FAT file system (or, in Windows 95 OSR2 and later, FAT32, which allows for larger partition sizes and more efficient use of space). The FAT/FAT32 file systems do not support the use of security settings. Simply booting the system from a DOS floppy disk and accessing data files can easily defeat any level of control exerted at the OS. Because of this, network users who work on Windows 95/98 OSs need to store their files on a secure server share. Usually, systems administrators set up a home directory to which all data files are stored, and change users default save paths to this location. This gives the added benefit of being able to back up data from a central location.
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WINDOWS 2000 DATA PROTECTION
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Windows 2000 includes many features that can increase the level of security and data protection in your environment. Design goals in Microsoft s major upgrade to the Windows NT platform include the inclusion of features to increase uptime, scalability, and security management. Windows 2000 is, however, based on the same technologies mentioned in previous sections. The concepts of auditing, setting file and object permissions, and authenticating security have not changed significantly. However, the way these tasks are performed has changed. Therefore, in this section, we ll focus on the differences between Windows NT 4 Workstation and Server and the Windows 2000 platform. It s well beyond the scope of this chapter to talk about all the features of Windows 2000. Here, we ll limit the discussion to new features that affect data protection directly.
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NOTE: It is well beyond the scope of this chapter to discuss details of Windows 2000 in depth. Here, we ll focus on the major new features and how they can best be used. For further information, see www.microsoft.com/ntserver and the additional resources mentioned in the Appendix.
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Microsoft has created four different versions of the Windows 2000 platform, to meet the needs of everyone from desktop users to large-enterprise-level users. Table 3-4 lists the various versions of Windows 2000 and the major differences between them. Maximum CPUs 2
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Major Features Client-side support for Active Directory and other major improvements in the Windows 2000 platform Support for Active Directory and Terminal Services All features of Server Edition, plus fail-over clustering, network load-balancing, component load-balancing, and support for up to 8GB of memory Advanced clustering options and support for more CPUs
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Professional Client-side computers and workstations in businesses and other secure environments Server Mainstream business server for file/print, web, and application services Midrange servers Advanced Server (large departments, corporate offices)
Datacenter Server
Enterprise-level servers
Up to 32
Table 3-4.
Comparing Versions of Windows 2000
3:
Data Protection in Windows NT/2000
Let s start looking at an overview of the new features in Windows 2000 and how they can help you secure and protect your data.
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