[ntp:questions] two machines syncing to the same master - hardware issues?

Steve Kostecke kostecke at ntp.org
Fri May 31 17:20:03 UTC 2013

On 2013-05-31, matthew.garman at gmail.com <matthew.garman at gmail.com> wrote:

> On Thursday, May 30, 2013 5:41:46 PM UTC-5, unruh wrote:
>> You can expect offsets of the order of 10-20microseconds IF the ntp
>> servers get their time from gps. If not, the servers themselves can
>> be woggling all over the place.

That's misleading.

> Is there any way to determine if the ntp servers are using GPS or not?

Query them with ntpq. http://doc.ntp.org/4.2.4/ntpq.html

But keep in mind that there other factors besides the time source at
play here. 

Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/

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