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

Chapter 2.  Installing Nagios 4

The previous chapter described what Nagios is, the basic concepts of monitoring, and types of objects in Nagios. This chapter describes how to install Nagios and the standard Nagios plugins.

We will cover multiple ways in which Nagios can be installed and how it can be run —using binary packages from various Linux distributions and building Nagios from source code. We will also discuss how to run Nagios in your machine, using Docker containers as well as run it inside a virtual machine.

We have provided an easy-to-run script that works on most popular Linux distributions including Debian, Ubuntu, CentOS, and Red Hat Enterprise Linux. For consistency, we recommend that you use this script for Nagios installation as it will also use the same paths for configuration files, binaries, and statuses that further chapters will refer to.

Also, this script will download and install the latest version of Nagios. Many Linux distributions do not ship latest versions of Nagios...