Solved

Resetting Time Server Peer

Posted on 2014-04-22
3
275 Views
Last Modified: 2014-06-13
Correcting some issues before upgrading our domain to server 2012.  The time server that the current PDC is set to is no longer valid.  So the system time is off by almost 2 minutes.  So 2 questions:

1)  Can I go through the steps necessary to configure a new time server, during normal business hours?  My initial thought is that this is no problem...but I would like "experts" opinions on the subject.

2)  Can someone review and confirm these steps for making the time server change.  Our PDC is Server 2003.

On PDC
>net stop w32time
>w32tm /unregister
>w32tm /register
>net start w32time
>w32tm /config /manualpeerlist:time.nist.gov /syncfromflags:manual /reliable:yes /update
>w32tm /resync /rediscover
>net stop w32time
>net start w32time

Thank you for assisting.
0
Comment
Question by:lshriver
3 Comments
 
LVL 35

Accepted Solution

by:
Mahesh earned 250 total points
ID: 40016933
The command to synchronize time to external source is perfect

However sequence is not perfect

After you set manual peerlist, you must stop and start w32tm service to make changes effective

Then you could run w32tm /resync /rediscover

Because your new time source will not work unless you restart the w32tm service and your resync and rediscover will fail otherwise


Also, if you have multiple time servers to specify, then command should be like this
 
w32tm /config /manualpeerlist:"ntpserver.contoso.com clock.adatum.com" /syncfromflags:manual /reliable:yes /update

Open in new window


Mahesh.
0
 
LVL 29

Assisted Solution

by:Rich Weissler
Rich Weissler earned 250 total points
ID: 40017267
Can you do it during normal business hours?   Given that you're less than two minutes, the answer is an almost unequivical, 'yes'.  There is some dependence on which direction you are off -- if your pdc emulator is behind the time source... it'll leap forward.  If your pdc is ahead, it'll skew the clock (slow it down) until they match.
One of the pain points is kerberos authentication, which by default has problems when the clocks are FIVE minutes apart.
0
 

Author Closing Comment

by:lshriver
ID: 40132677
Thanks for the answers!  This is exactly the information I needed.
0

Featured Post

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have never ceased to be amazed how many problems you can encounter on a fresh install of a Windows operating system.  This is certainly case in point& Unable to complete ANY MSI installation.  This means Windows Updates are failing and I can't …
Preface Having the need * to contact many different companies with different infrastructures * do remote maintenance in their network required us to implement a more flexible routing solution. As RAS, PPTP, L2TP and VPN Client connections are no…
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now