[ntp:questions] Isolated Network Drift Problem
unruh-spam at physics.ubc.ca
Wed Nov 26 00:57:19 UTC 2008
David Woolley <david at ex.djwhome.demon.co.uk.invalid> writes:
>Cal Webster wrote:
>> None of our client machines use the local clock. The servers configured
>> like this are the other 3 "peer" NTP servers. Don't they need some type
>> of time reference if the master server becomes unreachable?
>No. PCs keep time even without NTP installed.
>ntpd disciplines the local clock. If you use the local clock as your
>reference, it will always read exactly the same as the local clock being
>disciplined, so no corrections will ever be made. You have fallen for
>an urban legend!
>The Local Clock driver is a fiction used to allow an unsynchronised
>machine to appear synchronised to downstream machines.
Precisely and I suspect that he is asking "Does not the client have to see
that the server is synchronized in order to use it as a server?"
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