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

Defining a custom notification method

In this recipe, we'll learn how to specify an alternative method for a contact to receive notifications about a service. A very typical method for a contact to receive notifications is by sending an e-mail to their contact address; e-mail messages could be sent to an inbox or a paging device.

However, notifications are just text; we can arrange to deal with them via any command we wish, in much the same way as we can configure host or service checks. In this recipe, we'll set up a new contact called motd, which when it receives notifications will write them into the server's /etc/motd directory to be displayed on login.

Getting ready

You should have a Nagios Core 3.0 or newer server, with at least one host or service configured already. You should understand how notifications are generated and their default behavior in being sent to the contacts and contact_groups for hosts or services.

We'll use the example of a host called troy.naginet, configured to send...