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

Introduction


Nagios Core is best thought of as a monitoring framework that uses plugins to perform appropriate checks on hosts and services, and returns results about their states in a format that it understands and can use for sending notifications and keeping track of states on a longer term basis.

The design is quite flexible; as explained in the "Commands and Plugins" chapter, Nagios Core can use as a plugin any command-line application that gives appropriate return values as defined in the Nagios Core header files, Perl library, or shell script. In turn, Nagios Core can be configured to use the same plugin in many different ways, taking advantage of any switches provided by the plugin to adjust its behavior, including providing metadata to it in the form of the values of Nagios Core macros like $HOSTADDRESS$.

The collection of plugins available on the Nagios Exchange website at https://exchange.nagios.org/ is fairly large and documenting all of them is well out of the scope of this book...