Welcome! The goal of the wikibook is to outline the basic concepts about computer clusters. This book explains what a cluster is and how to build a simple and clean cluster which provides a great starting point for more complex tasks. In addition, this book contains a guide for task scheduling and other important cluster management features.
[BC08] Rory Bray and Daniel Cid. OSSEC Host-Based Intrusion Detection Guide. Syngress Media, 2008.