Analysts have discovered a design glitch in the Active Directories feature of Windows NT 5.0, which is due to go into large scale beta at the end of this month.
The problem centres on Microsoft's decision to provide two ways to log users and resources into active directories and then locate them.
To log users in, NT 5.0 will employ RFC-822 naming, which is used in the Internet space. Here, a user identifier is attached to the domain name, but, although simple and user friendly, this mechanism carries the risk of the name not being unique.
To locate users and resources in applications, NT 5.0 will use LDAP names, used in X.500-style addresses, which are cumbersome but unique.
Under the directory structure, a domain may hold thousands of users, but each one must be unique. Although this makes movement between the domains more flexible, it can cause network managers administrative headaches because they must ensure this uniqueness.
Jeff Price, Microsoft's US product manager for Windows NT Server, said that beta users preferred the directory this way and it was easy to simply provide two users with the same name, with slightly different variants.
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