check_ntp_time sometimes reports Offset unknown

Werner Flamme werner.flamme at ufz.de
Wed Jul 25 15:51:50 CEST 2012


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Ruslan Valiyev [25.07.2012 15:23]:
> Hi all,
> 
> Sometimes the output from check_ntp_time is "Offset unknown" while
> the ntp server is fine.


> *OS:* Red Hat Enterprise Linux Server release 6.2 (Santiago)
> 64-bit *nagios-plugins:* check_ntp_time v1.4.16-29-g3c10
> (nagios-plugins 1.4.16)
> 
> Any ideas?

Since it works, I will not say "RedHat? Check SELinux!" now :-)

We get "Offset unknown" whenever a host's ntp server is re-syncing
with another ntp server. Officially, there is only one ntp server
inhouse, so this shouldn't happen, but... ;-)

Regards,
Werner
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