[ntp:questions] windows 2003 server sp 1 & ntp

Tom Smith smith at cag.zko.hp.com
Tue Jan 8 14:21:17 UTC 2008

Ryan Malayter wrote:
> On Jan 7, 7:27 am, ma... at ntp.isc.org (Danny Mayer) wrote:
>> This has been discussed here so many times It's rarely worth repeating.
>> Windows (w32time) is a sntp client at best, steps the clock and does not
>> discipline it. The version introduced with Windows 2003 SP1 we know a
>> lot less about.
> This is a statement based on outdated information. Yes, the 8-year-old
> Windows 2000 implementation was a poor SNTP implementation, with
> broken behavior.
> However, Microsoft claims recent versions to be a real implementation
> of NTPv3, and specifically references RFCv1305. Since there is no
> NTPv4 RFC published, I think this is reasonable.

I believe, if you dig a little deeper, that means, as Danny noted, recent
versions (SP1 and later) of Windows 2003 Server only - not XP and not any
other flavor or update of Windows. Like Danny, I do not happen to know
what's in Vista.


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