Book Image

Learning Nagios 3.0

Book Image

Learning Nagios 3.0

Overview of this book

Table of Contents (16 chapters)
Learning Nagios 3.0
Credits
About the Author
About the Reviewer
Preface

Active Checks


One of most common areas where Nagios can be suited to fit your needs is that of active checks. These are the checks that are scheduled and run by the Nagios daemon. This functionality is described in more detail in Chapter 2.

Nagios has a project that ships the commonly-used plugins and comes with a large variety of checks that can be performed. Before thinking of writing anything on your own, it is best to check for standard plugins (described in detail inChapter 4 Overview of Nagios Plugins). It's also worthwhile to visit the NagiosExchange website to check whether somebody has already written a similar plugin for you.

The reason for this is that even though active checks are quite easy to implement, sometimes a complete implementation that handles errors and parameters is not very easy to create. Typically, proper error handling can take a lot of time to implement. Another thing is that plugins that have already existed for some time have often been thoroughly tested by...