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
About the Author
About the Reviewer

Installing a plugin

In this recipe, we'll install a custom plugin that we retrieved from Nagios Exchange on a Nagios Core server so that we can use it in a Nagios Core command and hence check a service with it.

Getting ready

You should have a Nagios Core 4.0 or newer server running with a few hosts and services configured already, and you should have found an appropriate plugin that is to be installed to solve a particular monitoring need. Your Nagios Core server should have Internet connectivity to allow you to download the plugin directly from the website.

In this example, we'll use check_rsync, which is available on the Web at

This particular plugin is quite simple, consisting of a single Perl script with only very basic dependencies. If you want to install this script as an example, the server will also need to have a Perl interpreter installed, for example, in /usr/bin/perl.

This example will also...