Learning Nagios, Third Edition

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.
Who This Book Is For
This book is targeted at System Administrators, both, who have no prior knowledge of Nagios as well as readers experienced with it. It not only covers the basics of Nagios but also the advanced features.
What You Will Learn
Set up and use the built-in Nagios web interface
Upskill the additional interfaces available for Nagios to monitor your IT infrastructure
Learn how to perform various checks using both, Nagios standard plugins and third-party plugins
Explore the working of notifications and events in Nagios
Familiarize yourself with SNMP and use it for monitoring devices such as routers, switches, modems and printers
Discover how can be Nagios can be customized and tailored to your needs
Get to know more about the entreprise version of Nagios, Nagios XI