Munin Plugin Starter
The real challenge of performance issues comes from trying to get to the root of the problem. Having a monitoring system set up makes your life, as a system administrator, a lot easier.

The Instant Munin Plugin Starter is a practical, hands-on guide that teaches you how to set up and monitor your network. Through a simple step-by-step process you will learn how to monitor other devices in your network and learn to write your own plugins. By the end of the book you will have the skills and the confidence to write plugins for any day-to-day task. more »