Nagios Support Forum

Scott,
Sorry for the late reply.

We currently have everything set to:

Interval: 5
Retry: 1
Attempts: 2

We are having an issue on occasion, where the following happens: - We are checking the Host for up/down via check_xi_host_ping - When the Windows machine performs a time sync and alters its time, the next time the check command occurs, it marks the host as Down, even though it is not. Another check ...

I will give this a try tomorrow morning.

npolovenko wrote:@crrussell3, Did that resolve the issue?

I am looking through the state history, and am still seeing the same errors pop up:

CHECK_NRPE: Error sending query to host.
CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error messages.

npolovenko wrote:@crrussell3, Based on your logs you may have multiple Nagios instances running which may be the cause of the problems in first place. Please run these commands:

Code: Select all

service nagios stop
killall -9 nagios
service nagios start

Verified and performed commands above.

Checking state history, I am now seeing the following:

CHECK_NRPE: Error sending query to host.

Five minutes later, everything is back to normal and check is green.

Sent PM with profile.

dwhitfield wrote:

crrussell3 wrote: 1. CHECK_NRPE: Error - Could not complete SSL handshake.

If you don't want to use SSL, then add a -n to your checks on the XI side.

I disabled SSL and adding the -n to the checks.

crrussell3 , Sounds good. Let us know if you still experience problems with those two hosts. In [/settings/NRPE/server] please also add this: use SSL = 1 Restart the NSCLient service. What is the version of check_nrpe plugin on the NagiosXI side? To check you can run this command: /usr/local/nagios...

the use SSL = 1 will enable SSL? We do not have anything setup for this, and prefer not to use it at this time.

I added the timeout and restarted the service.

I will monitor to see if I get as many SSL errors.

Looking through my state history, I can see this particular server over multiple checks, has had the SSL error 17 times.