Nagios Support Forum

Afternoon all. Slowing adding servers and checks, and ran into a check I am not sure how to handle. As the subject states, I am using NRPE and checking a lot of things, but want to make sure time on the servers never drifts past x seconds.

There are some out there that do it via SSH, the issue I have is a lot of servers are behind a load balancer, so I am using NRPE on the same IP but different ports so I control what goes where. The plugins all do it via SSH. Now I guess I could check via ssh on other ports to do the same, but that would involve keygen's, and a lot of work, as opposed to something already in place and working.

I don't care if I check the drift against the nagios server (which most do), or via ntp.ubuntu.com, or any other ntp server, but anyone have experience or know how?

Thanks.

You could run check_ntp through nrpe. Or you could run check_ntp_perr through nrpe to have the server check against a time server of your choice.

ugh, I saw them, didn't put 2 and 2 together when it was looking for the host!

/usr/lib/nagios/plugins/check_ntp_time -H ntp.ubuntu.com -w .5 -c 10
NTP OK: Offset 0.007176041603 secs|offset=0.007176s;60.000000;240.000000;

Worked like a charm, thanks for the quick reply, hate when I ask questions like that ... usually I know better, but still thanks for the prompt reply!