Book Image

Nagios Core Administration Cookbook

By : Tom Ryder
Book Image

Nagios Core Administration Cookbook

By: Tom Ryder

Overview of this book

Network monitoring requires significantly more than just pinging hosts. This cookbook will help you to comprehensively test your networks' major functions on a regular basis."Nagios Core Administration Cookbook" will show you how to use Nagios Core as a monitoring framework that understands the layers and subtleties of the network for intelligent monitoring and notification behaviour. Nagios Core Administration Guide introduces the reader to methods of extending Nagios Core into a network monitoring solution. The book begins by covering the basic structure of hosts, services, and contacts and then goes on to discuss advanced usage of checks and notifications, and configuring intelligent behaviour with network paths and dependencies. The cookbook emphasizes using Nagios Core as an extensible monitoring framework. By the end of the book, you will learn that Nagios Core is capable of doing much more than pinging a host or to check if websites respond.
Table of Contents (18 chapters)
Nagios Core Administration Cookbook
About the Author
About the Reviewers

Viewing and interpreting trends

In this recipe, we'll learn how to use the Host and Service State Trends reporting tool on a host or service to show a graph of states over some fixed period of time. This can be useful to determine not only overall availability, perhaps to meet the terms of a service-level agreement, but also to ascertain whether there are certain intervals or consistent times that the host enters a non-OK state. It's a good way to look for patterns in the downtime of your hosts.

Getting started

You will need access to the Nagios Core web interface, and permission to run commands from the CGIs. The sample configuration installed by following the Quick Start Guide grants the nagiosadmin user all the necessary privileges when authenticated via HTTP.

If you find that you don't have this privilege, then check the authorized_for_all_services and authorized_for_all_hosts directives in /usr/local/nagios/etc/cgi.cfg, and include your username in both; for the user tom, the directives...