Book Image

Nagios Core Administration Cookbook

By : Tom Ryder
Book Image

Nagios Core Administration Cookbook

By: Tom Ryder

Overview of this book

Network monitoring requires significantly more than just pinging hosts. This cookbook will help you to comprehensively test your networks' major functions on a regular basis."Nagios Core Administration Cookbook" will show you how to use Nagios Core as a monitoring framework that understands the layers and subtleties of the network for intelligent monitoring and notification behaviour. Nagios Core Administration Guide introduces the reader to methods of extending Nagios Core into a network monitoring solution. The book begins by covering the basic structure of hosts, services, and contacts and then goes on to discuss advanced usage of checks and notifications, and configuring intelligent behaviour with network paths and dependencies. The cookbook emphasizes using Nagios Core as an extensible monitoring framework. By the end of the book, you will learn that Nagios Core is capable of doing much more than pinging a host or to check if websites respond.
Table of Contents (18 chapters)
Nagios Core Administration Cookbook
About the Author
About the Reviewers

Viewing and interpreting notification history

In this recipe, we'll see how to get both complete listings and convenient summaries of the alerts and notifications being generated by Nagios Core in response to hosts and services changing state. These options are all available under the Reports section of the sidebar:

It's important to distinguish between alerts and notifications in this section. An alert is generated in response to an event such as a host or service changing state. A notification, in turn, may or may not be generated as a response to that alert, and be sent to the appropriate contacts. SOFT state changes constitute alerts; only HARD state changes generally make notifications.

It's likely that a production monitoring server will not be sending notifications for every alert, particularly if you're making good use of the max_check_attempts, scheduled downtime, and problem acknowledgement features. You should make sure you're checking the correct section.

Getting started

You will...