[ntp:questions] Synchronizing Linux clients with Windows Server 2003 NTP
maarten at kittensandcats.net
Fri Jan 19 08:13:36 UTC 2007
"Steve Kostecke" <kostecke at ntp.isc.org> wrote in message
news:slrner0i3p.bu0.kostecke at stasis.kostecke.net...
> On 2007-01-18, Maarten Wiltink <maarten at kittensandcats.net> wrote:
>> <NTP with local clock only> won't make the real time magically
>> appear on that server.
> There's more to it than that.
> Without a proper "time base" how is NTP supposed to ensure that one
> second is acceptably close (i.e. +/- a handful of ms) to one second?
A handful of milliseconds is several thousand PPM. Few crystals are
_that_ bad. NTP requires a 'reasonable' crystal to begin with. Witness
the problems with speedstepping notebooks.
But this is one of the areas where operation without a proper time
reference is degraded, and awareness of that is a good thing.
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