Book Image

Cacti Beginner's Guide - Second Edition

Book Image

Cacti Beginner's Guide - Second Edition

Overview of this book

Cacti is a performance measurement tool that provides easy methods and functions for gathering and graphing system data. You can use Cacti to develop a robust event management system that can alert on just about anything you would like it to. But to do that, you need to gain a solid understanding of the basics of Cacti, its plugin architecture, and automation concepts. Cacti Beginner's Guide will introduce you to the wide variety of features of Cacti and will guide you on how to use them for maximum effectiveness. Advanced topics such as the plugin architecture and Cacti automation using the command-line interface will help you build a professional performance measurement system. Designed as a beginner's guide, the book starts off with the basics of installing and using Cacti, and also covers the advanced topics that will show you how to customize and extend the core Cacti functionalities. The book offers essential tutorials for creating advanced graphs and using plugins to create enterprise-class reports to show your customers and colleagues. From data templates to input methods and plugin installation to creating your own customized plugins, this book provides you with a rich selection of step-by-step instructions to reach your goals. It covers all you need to know to implement professional performance measurement techniques with Cacti and ways to fully customize Cacti to fit your needs. You will also learn how to migrate Cacti to new servers. Lastly you will also be introduced to the latest feature of building a scalable remote poller environment. By the end of the book, you will be able to implement and extend Cacti to monitor, display, and report the performance of your network exactly the way you want.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
15
Online Resources

Creating data input methods


We have already seen how to create a data input method for simple SNMP queries. Let's look into creating a script-based data input method for retrieving some information out of the secure log file. The secure log file contains information about failed and successful logins. Please note that the following example will only work on a Linux system.

Note

The book comes with an exported version of the data input method as well as the data template. The file cacti_data_template_unix_-_secure_log_input.xml can be imported into Cacti and is provided as a reference for you. The file does not contain the graph template, which you will have to create yourself. You should still try and follow this chapter so that you get familiar with the different steps involved in creating your own data input methods and data templates.

Preparation - creating the script

For a script/command data input method, you will need a script for gathering the required data and providing it to Cacti....