[Nagiosplug-help] check_ntp

[Brian Ipsen]

> >  Using check_ntp on a host, I sometimes get a critical notification:
> >
> > NTP CRITICAL: server 192.168.0.178, stratum 3, offset 0.000000, delay
> > 0.02563
> >
> > And when it returns to normal:
> >
> > NTP OK: Offset -0.000001 secs, jitter 0.288 msec, peer is stratum 2
> >
> > The offset is not out of range (suning defaults), but is it the missing
> > jitter-information, that causes the plugin to return critical
> condition ?
>
> The NTP plugin considers an offset of exactly 0 to be "probably
> bogus", according to comments in the code.

Or could it be because the NTP changes from a stratum 2 source to a stratum
3 source ? On the other hand, this information is not stored anywhere in
Nagios..

Regards,

/Brian