Choosing states for notification
In this recipe, we'll learn how to refine which notifications are sent by a host or service and which notifications should be received by a particular contact. We'll do this by changing both the notification types that hosts and services should generate and, to complement that, the notification types that a contact should be configured to receive.
Getting ready
You should have a Nagios Core 4.0 or newer server, with at least one host configured already. We'll use the example of sparta.example.net, a host defined in its own file, which we'll configure to send only the DOWN and RECOVERY notifications, ignoring other notifications such as WARNING and UNKNOWN. It will send the notifications to an existing contact called john; we'll ensure that this contact is configured to receive those notifications.
How to do it...
We can configure the notification types for our host as follows:
Change to the objects configuration directory for Nagios Core. The default is
/usr/local...
