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lstanke

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Time Synchronization on Virtual Domain Controllers

I have a 2012 Domain Controllers that are both Hyper V guests and want to confirm best practice for time sync.I KNOW this has been asked multiple times, but just want to make sure I am using the best practice.

What seems to make the most sense is on the DCs.

Leave the guest services enabled.  

Set the reg key below so that the Primary DC will get time from host on boot up
reg add HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\VMICTimeProvider /v Enabled /t reg_dword

Set the Primary DC to get time sync from external source... such as pool.ntp.org

For other DCs, set to query primary

Then what to do with the physical host:

When it reboots where does it get its time?  Set to External?

Thanks for helping me figure out what is the best way to approach.
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Adam Brown
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Thanks for the response.  i had found this article:
https://community.spiceworks.com/how_to/133825-how-to-synchronize-a-virtual-domain-controller-dc-with-a-time-source

The reg key change makes sense to me as far as time at boot and then syncing from the designated time source.  

I guess then I would use the recommended settings for the PDCs and DCs. from the article you provided.

I just wanted to be sure about the host.  The host is part of the domain, and I guess as long as another DC is available it can get its time from the backup DCs.

Hopefully this makes sense
No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

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