[ntp:questions] Does NTP cause an abrupt/sudden change in an orphan's system time?

Harlan Stenn stenn at ntp.org
Wed Aug 8 17:06:41 UTC 2012

Rob writes:
> Harlan Stenn <stenn at ntp.org> wrote:
> > If this situation is "difficult" for you I'd recommend you get an
> > inexpensive GPS receiver and use that to sync your master machine(s).
> >
> > Check out the Sure Electronics GPS board, which can be easily modified
> > to provide a PPS signal.  There are other inexpensive GPS units as well.
> Yet another time the completely irrelevant topic of the hobbyist GPS
> receiver is brought into the thread...
> The OP was asking about abrupt/sudden changes in a system's time.
> This is unrelated to the availability of GPS.
> When he connects the GPS receiver he will have to watch the same issue
> as when connecting to another reference.

Since I was tired when I first responded I could have missed it, but I
thought the issue was that sometimes he must start his master clock
machine when it does not have internet access.  Therefore, if he has a
local GPS instead his issue will generally be far less significant.


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