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

Submitting passive checks from a remote host with NSCA

In this recipe, we'll show you how to automate the submission of passive checks by a remote host using the example of a monitored host,, to submit a passive check to a Nagios Core server with information about how its BACKUP service is performing.

For example, if the backup process gets completed successfully, we configure the monitored host to submit a passive check result, specifying that the BACKUP service should have the OK status. However, if there were a problem with the backup, the monitored host could send a passive check result with a WARNING or CRITICAL status.

In both cases, Nagios Core does no checking of its own; it trusts the results submitted by its target host.

To accomplish this setup, we'll use the NSCA add-on. We'll install the NSCA server on the Nagios Core server and the NSCA client program send_nsca on the monitored host.

Getting ready

Here, we assume that you have already followed the Allowing and...