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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Introduction


The Nagios Core web interface is an administrator's first port of call to see the current status of the network being monitored. By way of CGI and PHP scripts, it allows both an overview of the general performance of all the hosts and services being monitored and, going into more detail, about their current states and how checks are being performed. This provides considerably more details than are normally contained in e-mailed notifications. The default home page for the Nagios Core web administration area contains process information, news, and quick links, as shown in the following screenshot:

In most respects, the Nagios Core web interface (without any add-ons) is mostly geared for the display of information rather than configuring the server, but there are some things that can be done in it to actually change the way Nagios Core runs. These include the following tasks:

  • Disabling or enabling active and passive checks, event handlers, notifications, and flap detection, whether...