So we had Monday off for MLK day, and while we were off one of our main servers decided to reboot. (Odd, but whatever.) Anyway, the server comes back online, but the 'DNS server' service does not. (Odd as well, but whatever again)..
My problem is this - while nagios knew that the 'DNS server' service was down on said server, the mail it was sending out was simply "host up" alerts, not DNS down alerts. So starting saturday around midnight, I have emails about every 3 - 10 mins from nagios stating:
Notification type: PROBLEM
then ip and ping ok info (which are fine). No mention at all of DNS.
Upon arriving here this morning and starting the 'DNS server' service by hand, i got the following:
Notification type: RECOVERY
then ip and ping ok info (which are fine). Still no mention at all of DNS.
Seems strange that nagios would not just page with a warning about DNS being down, no?