Nagios Support Forum

Im trying to figure out how to alert if a device that is being monitored passive goes offline. Currently I have ncpa passive sending to my XI server to NDRS. Im monitoring basic i/o. I noticed when I shut the device off i don't get alerted that this is down. With the nature of how NDRS works is there something that can be programmed in NDRS that looks for data from passive device and if data isn't received after some interval then alert for that device?

Im using centos7 for client and XI

Page 8 of this doc, starts describing what you want to do, it's a combination of freshness checking and check_dummy plugin
https://assets.nagios.com/downloads/nag ... ios-XI.pdf

Thanks.