[ntp:questions] nagios

Rob nomail at example.com
Mon Jun 9 21:35:59 UTC 2014


Harlan Stenn <stenn at ntp.org> wrote:
> Rob writes:
>> I am trying to monitor NTP servers with nagios.
>> I use the standard plugin check_ntp_peer.
>> 
>> It appears that it is only checking the offset and jitter of the
>> currently selected peer.  When I run check_ntp_peer with some threshold
>> it returns the same values as present on the ntpq output line with *
>> at the beginning.
>> 
>> I think this is wrong.  It should do the equivalent of "ntpq -c rv"
>> and pick the offset and sys_jitter values from there.
>> 
>> Is anyone aware of a nagios plugin that does that?
>
> Have you seen http://support.ntp.org/Support/MonitoringAndControllingNTP
>
> and the check_ntpq nagios module it mentions that I haven't touched in a
> Long Time?
>
> H

Ok I see that this one at least uses "ntpq -c readvar".

I would prefer an implementation that uses the readvar packet itself,
as I think that it can return more precision than ntpq does.
(its float value formats are limited to 3 digits after the decimal)



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