Book Image

Learning Nagios - Third Edition

By : Wojciech Kocjan, Piotr Beltowski
Book Image

Learning Nagios - Third Edition

By: Wojciech Kocjan, Piotr Beltowski

Overview of this book

Nagios, a powerful and widely used IT monitoring and management software for problem -solving. It detects problems related to your organizations infrastructure and helps in resolving the issue before it impacts the business. Following the success of the previous edition, this book will continue to help you monitor the status of network devices and also notify the system administrators of network problems. Starting with the fundamentals, the book will teach you how to install and configure Nagios for your environment. The book helps you learn how to end downtimes, adding comments and generating reports using the built-in Web interface of Nagios. Moving on, you will be introduced to the third-party web interfaces and applications for checking the status and report specific information. As you progress further in Learning Nagios, you will focus on the standard set of Nagios plugins and also focus on teach you how to efficiently manage large configurations and using templates. Once you are up to speed with this, you will get to know the concept and working of notifications and events in Nagios. The book will then uncover the concept of passive check and shows how to use NRDP (Nagios Remote Data Processor). The focus then shifts to how Nagios checks can be run on remote machines and SNMP (Simple Network Management Protocol) can be used from Nagios. Lastly, the book will demonstrate how to extend Nagios by creating custom check commands, custom ways of notifying users and showing how passive checks and NRDP can be used to integrate your solutions with Nagios. By the end of the book, you will be a competent system administrator who could monitor mid-size businesses or even large scale enterprises.
Table of Contents (19 chapters)
Learning Nagios - Third Edition
About the Authors
About the Reviewer

Changing the look of the Nagios web interface

Although the main focus of the web interface is its functionality and not its look, there is a possibility to change the way how it presents. The Nagios source code comes with two themes—exfoliation and classical. So far, all of the screenshots in this chapter have been prepared using the exfoliation theme, which is the default theme for Nagios since version 3.3.1.

The classical theme was the default for all Nagios versions up to version 3.2.3. To install the classical theme, we need to run the following command from the Nagios source code directory:

make install-classicui

This will install the classical theme and overwrite the theme currently installed for the Nagios web interface. After the command succeeds, the interface will look more familiar to people who use or have used Nagios version 3.2.3 or older.

Depending on your preferences, you may choose to use the new default theme or use the classical one. Apart from a different look and feel...