You can setup nagios to execute commands via NRPE whenever a host or service state change occurs, these are called event handlers. Luckily they’re fairly easy to implement and the example I provide uses NRPE to issue remote event handlers. On the nagios server: In your command.cfg file, where I keep all of my command [...]
This is wonderfully useful: http://www.pixelbeat.org/cmdline.html
I found it very useful to use custom variables when monitoring lots of servers, especially when you have services running on distinct IP addresses and a “host” really means collection of termed “nagios hosts”. To group these “nagios hosts” together as a single “host” we can declare as many custom variables – ideally one variable [...]
