Book Image

Nagios Core Administration Cookbook - Second Edition

By : Tom Ryder
Book Image

Nagios Core Administration Cookbook - Second Edition

By: Tom Ryder

Overview of this book

Nagios Core is an open source monitoring framework suitable for any network that ensures both internal and customer-facing services are running correctly and manages notification and reporting behavior to diagnose and fix outages promptly. It allows very fine configuration of exactly when, where, what, and how to check network services to meet both the uptime goals of your network and systems team and the needs of your users. This book shows system and network administrators how to use Nagios Core to its fullest as a monitoring framework for checks on any kind of network services, from the smallest home network to much larger production multi-site services. You will discover that Nagios Core is capable of doing much more than pinging a host or to see whether websites respond. The recipes in this book will demonstrate how to leverage Nagios Core's advanced configuration, scripting hooks, reports, data retrieval, and extensibility to integrate it with your existing systems, and to make it the rock-solid center of your network monitoring world.
Table of Contents (18 chapters)
Nagios Core Administration Cookbook Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Writing custom Nagios Core management scripts


As established in Chapter 7, Using the Web Interface, some control over the Nagios Core process can be achieved by different areas of a web interface by enabling or disabling notifications or checks, scheduling downtime for hosts or services, or acknowledging existing programs. However, for large networks in particular, we may often need a more flexible approach to run operations on a large number of hosts or services in batches or to disable or enable features from another script, which is cumbersome to manage via the CGI.

For example, if we had a list of more than a hundred hosts in a segment of our network that were going to become inaccessible due to scheduled maintenance at a known time, it would take a very long time for us to set up all the scheduled downtime in the web interface to avoid sending out notifications for those hosts. It would be better to do this via a command line.

In this recipe, we'll install a custom script in /usr/local...