Here is a reference for setting up NTP for a forest. http://www.windowsadvice.com/blogs/owsteve/archive/2005/04/12/113.aspx
I use these KB articles from time to time for. The root PDC emulator is the only thing that should have to be configured. All other DC's in the chain should magically get it. Of course this is assuming a single forest. I'm sure this isn't apply to all cases but for mine this is how I setup NTP for AD. Thank you, Steve Schofield Microsoft MVP - ASP/ASP.NET ASPInsider Member - MCP http://www.orcsweb.com/ Powerful Web Hosting Solutions #1 in Service and Support ----- Original Message ----- From: "John Policelli" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Monday, April 11, 2005 7:22 PM Subject: RE: [ActiveDir] Time Sync between Forest Root and Child Domains > I would have a look at the > [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters > key. On your PDC in the forest root domain the type should be set to NTP, > and on the remaining DCs the type should be set to Nt5DS. > I should add that we also ran into a situation where net time was > inaccurately reporting that our DCs and member servers were synced with a > specific member server - which they were not supposed to be synced with. It > turns out that MS does not support using net time on a Win2K3 domain as it > inaccurately reports back. The resolution they gave us was to use w32tm, > and it turned out that our time was fully intact. > It would have been nice for them to publish something about net time not > being supported on Win2K3 DCs :-) > > John > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Phil Renouf > Sent: Friday, April 08, 2005 10:36 AM > To: [email protected] > Subject: Re: [ActiveDir] Time Sync between Forest Root and Child Domains > > On Apr 7, 2005 11:52 AM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> > wrote: > > Set the time source on your Root PDC with net time /setsntp:SERVERNAME > > > > On all other DC's do not set a time source with net time /setsntp: > > > > By not setting a time source the DC's should all default to the Forest > Root > > PDC. > > > > Or you can manually set the other DC's to sync with your forest PDC with > > net time /setsntp:PDCname > > Actually the DCs of the child domain will use the PDCe of its domain > or any DC of the parent domain to sync it's time. Also, the PDCe of > the child domain will any DC of the parent domain to sync it's time. > > KB article for how to set windows to use an external timesource. As > mentioned by Chris you would do this on the PDCe of the forest root. > > http://support.microsoft.com/kb/816042 > > Phil > List info : http://www.activedir.org/List.aspx > List FAQ : http://www.activedir.org/ListFAQ.aspx > List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ > > List info : http://www.activedir.org/List.aspx > List FAQ : http://www.activedir.org/ListFAQ.aspx > List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
