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Appendix C - Differences Between Windows NT 4.0 IAS and Windows 2000 IAS

Published: June 01, 2000
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Windows NT 4.0 Behavior
Windows 2000 IAS Behavior

An earlier version of IAS was released with the Windows NT 4.0 Option Pack. The following section describes the differences between the two versions.

Windows NT 4.0 Behavior

  • If no domain name is specified during authentication, the IAS server authenticates the user against only the local SAM database.

  • IAS does not use callback permissions for all user accounts.

  • IAS log files are written in ASCII.

Windows 2000 IAS Behavior

  • IAS resolves a user name with no domain specified by using the following sequence:

    1. IAS determines a default domain from the registry by using the DefaultDomain registry setting, if one is specified there.

    2. If the IAS server is a member of a domain, IAS authenticates the user against that domain.

    3. If the IAS server is not a member of a domain, IAS authenticates the user against the local SAM database.

  • IAS uses the callback permissions for all user accounts.

  • IAS log files are multi-language and are written in UTF-8.

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