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NTP Server

By d.jones092 ·
Hello All. I am running a time synch program on my PDC (Win2k), and have my BDC (Also Win2k. I guess these terms are obsolete with AD, but hey! I'm an NT guy) "pointing" to the IP of the PDC for its time. By this I mean I used the following command on the BDC:

net time \\servername /set sntp:internal server IP

Yet, I am still getting an error on the BDC telling me the NTP server is not responding. Event ID = 47.

Thanks for any info.

Dennis Jones

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NTP Server

by Joseph Moore In reply to NTP Server

I spent a day working with NET TIME and external NTP servers, so I can feel your pain.

Now, this is from Microsoft Technet article 243574:

Windows servers that are not domain controllers and Windows-based computers attempt to locate a domain controller to synchronize the network time. Domain controllers attempt to contact the domain controller that holds the primary domain controller (PDC) Flexible Single Master Operation (FSMO) role. Only the domain controller that holds the PDC FSMO role can query an external time source to set the time.

That is the key here, only the FSMO server can use the /setsntp switch. The other Win2K Domain Controller you have (your "BDC") can't run it that way.
I know, annoying but true.

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NTP Server

by Joseph Moore In reply to NTP Server

You have a couple options that I was able to find.
1) Run NET USE \\otherDCservername /SET /Y on your "BDC" only. Yes, the old NT4 way. This will not run over SNTP, but normal Windows NetBIOS communication. But it will work. Your "BDC" will have its clock synched up with the first AD server (your "PDC").
2) Get a 3rd party NTP program and run it on the "BDC", pointing to the "PDC" as a time source. That way, the time query will run over the NTP port. I chose this method. I run a freeware program called NetTime, available here:
http://nettime.sourceforge.net/

So, here is what you do. Set up your first AD Domain Controller, with the FSMO role, to query from an external time server using the Net Time command.
Then on the 2nd Domain Controller, have it run this NetTime program. When you set up the program, point it to pull the time from the FSMO AD server.

That will work.

Good luck

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by d.jones092 In reply to NTP Server

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