Windows Server Longhorn will support three forest functional levels:
-
Windows 2000 — W2K DCs and higher
- See MS-KBQ322692 for features
- See MS-KBQ322692 for features
- Windows Server 2003 Interim — Not supported/available!
-
Windows Server 2003 — W2K3 DCs and higher
- See MS-KBQ322692 for features
- See MS-KBQ322692 for features
-
Windows Server Longhorn — WLH DCs and higher
- No additional new features. Level is available to prevent the promotion of previous OS-es to a DC
- No additional new features. Level is available to prevent the promotion of previous OS-es to a DC
Windows Server Longhorn will support three domain functional levels:
- Windows 2000 Mixed — Not supported/available!
-
Windows 2000 Native — W2K DCs and higher
- See MS-KBQ322692 for features
- See MS-KBQ322692 for features
- Windows Server 2003 Interim — Not supported/available!
-
Windows Server 2003 — W2K3 DCs and higher
- See MS-KBQ322692 for features
- See MS-KBQ322692 for features
-
Windows Server Longhorn — WLH DCs and higher
- SYSVOL replicated through DFS-R instead of NTFRS
- New additional encryption mechanism for Kerberos
-
Recording interactive logon information like:
- Last successful interactive logon information and from which computer
- Number of failed interactive logons and the last failed interactive logon information
- Last successful interactive logon information and from which computer
- Multiple Password Policies per AD domain. Read more here and here.
- SYSVOL replicated through DFS-R instead of NTFRS
NOTE: this information is based upon a beta release of Windows Server Longhorn and thus subject to change in the final RTM release. Do not use Windows Server Longhorn in a production environment without the explicit commitment from Microsoft for help and support.
Cheers,
Jorge
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