Nagios Core Administration Cookbook

Chapter 4. Configuring Notifications

In this chapter, we will cover the following recipes:

• Configuring notification periods
• Configuring notification for groups
• Specifying which states to be notified about
• Tolerating a certain number of failed checks
• Automating contact rotation
• Defining an escalation for repeated notifications
• Defining a custom notification method

Introduction

Notifications in Nagios Core refer to the events fired and the messages generated when hosts or services change state, for the purposes of informing appropriate people or systems.

For example, when connectivity to a host is lost, it leaves the UP state and goes to the DOWN state on the next check. This eventually generates a notification event, and provided the appropriate flags are ...