Tech Support > Microsoft Windows > Windows Server > Rollback to NT4 domain from 2000 mixed mode
Rollback to NT4 domain from 2000 mixed mode
Posted by Todd B on December 3rd, 2004


Have corrupt 2000 AD no backups mixed mode with NT4 bdc's. Have 2K & XP
clients.
AD still online can possibly push some policy to turn off Kerberos
authentication.
Help..
Anyone have a way to rollback to NT4 without having to re-add these clients
to the domain.

Help...

Thanks,

Todd Bergman
System Engineer ISG
mailto:tbergman@goisg.com


Posted by Todd B on December 4th, 2004


I tested the process on virtual pc. The clients will not authenticate to NT
after they have been introduced to AD. In fact one process that did work
for 2000 clients was:
remove 2000 ad from net
promote one of the nt bdc's to pdc
upgrade that pdc to 2000 ad
all DNS and WINS properly configured
2000 machines seemed to work XP machines needed to rejoin domain

I guess my question to everyone is after a rollback to NT4 PDC. 2K&XP
clients will not authenticate to NT domain controllers. If I promote the
rollback server to 2000 I do not believe there is anyway to get around
rejoining the clients to the domain. The only way to have these clients
authenticate to NT4 bdc's when the domain is upgraded is Q298713 "How to
prevent overloading on the first domain controller during domain upgrade"
however this MS trick does not apply.
"Todd B" <tbergman@goisg.com> wrote in message
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