Re: NTP Server
From: Ulf B. Simon-Weidner [MVP] (nospam2-ulf_at_usw-consulting.com)
Date: 07/14/04
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Date: Tue, 13 Jul 2004 22:59:17 -0700
"Joseph Boswell" <joedboswell at hotmail dot com> wrote in message
news:O7DTkaTaEHA.2816@TK2MSFTNGP11.phx.gbl:
> So I am setting an NTP server on my clients via AD, however I would like
> to
> have a list of NTP servers my clients can refer to, I know this an option
> on
> the command line with:
>
> /SETSNTP[:ntp server list]
>
> But 1. I dont know how in the AD GPO? and 2. I dont know how I am
> supposed
> to format this list?
>
Hello Joseph,
you usually do not need to set this anywhere but on the PDC-Emulator of
your rootdomain. All other machines are supposed to be set to NT5DS
which will pull the time automatically in the following hierarchie:
- Domain members pull their time from the DC they've logged on
- DCs pull their time from the PDC-Emulator of their or their parent
domain
- PDC-Emulators pull their time from the PDC-Emulator of their parent
domain
So you only need to configure the PDC-Emulator from the rootdomain to
use a external, reliable timesource.
This discover mechanism is automatic, where the ntp-setting would be
static, that's the reason why you won't see the ntp-server been set on
the domain members. However you are able to check that by using the
w32tm commands like w32tm /monitor or w32tm /resync, check your
eventlog for events from w32time which will tell you when and what
server was selected automatically, and you are able to check the
registry underneat HKLM\System\CCS\Services\w32time\parameters if the
Type=NT5DS.
If you want to configure your PDC-Emulator to use NTP you can use the
following commands (either or - they do the same):
Net time /setsntp:"ip1 ip2 ip3"
W32tm /config /update /manualpeerlist:"ip1 ip2 ip3"
/syncfromflags:MANUAL
If you want to configure a domain member which you manually configured
to NTP to use the default behaviour again, use the following command:
W32tm /config /update /syncfromflags:DOMHIER
216734 Konfigurieren eines autorisierenden Zeitservers in Windows 2000
216734 How to Configure an Authoritative Time Server in Windows 2000
http://support.microsoft.com/?id=216734
314054 How to Configure an Authoritative Time Server in Windows XP
http://support.microsoft.com/?id=314054
The Windows Timeservice
http://www.microsoft.com/windows2000/docs/wintimeserv.doc
223184 Registry Entries for the W32Time Service
http://support.microsoft.com/?id=223184
-- Gruesse - Sincerely, Ulf B. Simon-Weidner
- Previous message: James Deng: "why can't add users to a new domain"
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