Time source for Windows 2012 AD DS

Hello All,

We just setup a new Windows 2012 AD for a new company.  

How do I know which internet time source the domain controller as a time source is using?  

Is there a way to list what internet time source the DC is using?  Do we need a Cisco ASA rule to allow internet-internal time sync traffic for this DC?
nav2567Asked:
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Radhakrishnan RSenior Technical LeadCommented:
Hi,

Trigger this command from the server "w32tm /query /status" or "w32tm /query /configuration

This details about the info what you are looking for
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Radhakrishnan RSenior Technical LeadCommented:
And 'w32tm /query /source' as well
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Stephen OttBuilding and Technology DirectorCommented:
If it helps, I've found running the tool NetTime on my domain controllers to help with time sync issues.
www.timesynctool.com
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nav2567Author Commented:
Thanks.  

I transferred the FSMO role from the old WINDOWS 2008 domain controller server to the newly setup WINDOWS2012 domain controller.

From the Windows 2012 DC, I still see NTP server is still pointing to the Windows 2008 server which points to the internet time source.  

How do I make the 2012 DC to become the time source and points to internet time?
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MichelangeloConsultantCommented:
I wrote this script:
https://gallery.technet.microsoft.com/Configure-time-sync-in-a-69dfcc85
The (brief) article links the relevant version echnet docs.

See if it helps and post any question you may have
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mattibuttCommented:
you can use ntp servers which ensures accuracy of the time.

thanks
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MichelangeloConsultantCommented:
Basically,
PDC emulator of forest root domain should act as time source for the forest and should get its time by querying a ntp server.
Find PDC of root domain using
netdom query fsmo

Open in new window

then run on an elevated command prompt
w32tm /query /source

Open in new window


"free running system clock" means no configuration
"time.google.com"nor whatever ntp server means it points to an NTP

Then you have to check other DC so that they are properly configured to get time info from the forest. The script I posted before does that.
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