Best use of check_ntp_time plugin

[Deborah Martin]

Folks, 

We've had a problem recently where the timestamp has been drifting hours
ahead on the VM box running nagios. (v3.2.0 with SLES 10 SP2) 

As a consequence I'm setting up the plugin check_ntp_time to ensure that the
clock on the nagios monitoring box doesn't drift too far ahead (or behind.)
without 
telling us so that we can do something about it. 

For the threshold for warning and critical, I was thinking of -w 30 and -c
60 - would this seem sensible ? 

And also, if the alert did become critical because the drift was greater
than 60 seconds what would be a sensible way of fixing this without human
intervention. 
I thought that an event handler might be the way to go here that would
restart the ntpd daemon. 

I'd be interested to know what your thoughts are / whether there is a better
way ? 

thanks,
deborah


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