The Definitive Guide to the Xen Hypervisor is a comprehensive handbook on the inner workings of XenSource’s powerful open source paravirtualization solution. From architecture to kernel internals, author David Chisnall exposes key code components and shows you how the technology works, providing the essential information you need to fully harness and exploit the Xen hypervisor to develop cost-effective, highperformance Linux and Windows virtual environments.

Granted exclusive access to the XenSource team, Chisnall lays down a solid framework with overviews of virtualization and the design philosophy behind the Xen hypervisor. Next, Chisnall takes you on an in-depth exploration of the hypervisor’s architecture, interfaces, device support, management tools, and internals—including key information for developers who want to optimize applications for virtual environments. He reveals the power and pitfalls of Xen in real-world examples and includes hands-on exercises, so you gain valuable experience as you learn.

This insightful resource gives you a detailed picture of how all the pieces of the Xen hypervisor fit and work together, setting you on the path to building and implementing a streamlined, cost-efficient virtual enterprise.

The Most Complete, Easy-to-Understand, and Useful Guide to Ubuntu Linux Desktops and Servers

Ubuntu Linux is a state-of-the-art operating system, and you need a book that’s just as advanced. Along with being the most comprehensive reference to installing, configuring, and working with Ubuntu, A Practical Guide to Ubuntu Linux^® also provides extensive server coverage you won’t find in any other Ubuntu book.

Best-selling author Mark Sobell begins by walking you through every feature and technique you need to know, from installing Ubuntu–using the DVD included with the book–to working with GNOME, Samba, exim4, Apache, DNS, NIS, firestarter, and iptables. Sobell’s exceptionally clear explanations demystify everything from system security to Windows file/printer sharing.

As you get more involved with PCs, you’ll start accumulating tons of files, such as pictures, movies, and documents. In addition, you’ll eventually have numerous software applications installed on your computer for work and pleasure. The proper periodic backup of your valuable data is crucial to ensure that you have it forever.

Anyone who uses the Internet, email, or a computer should read this book. Whether you are a self-proclaimed computer illiterate or a lifelong IT professional, this book will give you the tools and understanding to properly migrate and back up your valuable data, as well as make better use of your PC.

Preparing for the CCNP certification? Working as a network professional? Here are all the CCNP-level commands for the ISCW exam you need in one condensed, portable resource. The CCNP ISCW Portable Command Guide is filled with valuable, easy-to-access information and is portable enough for use whether you’re in the server room or the equipment closet.

This book can help you memorize commands and concepts as you work to pass the CCNP ISCW exam (642-825). The guide summarizes all CCNP certification-level Cisco IOS Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Sample configurations throughout the book provide you with a better understanding of how these commands are used in simple network designs.

The topics in this portable command guide cover how to do the following:

• Implement basic teleworker services
• Implement Frame-Mode MPLS
• Implement a site-to-site IPsec VPN
• Describe network security strategies
• Implement Cisco Device Hardening
• Implement Cisco IOS Firewall
• Describe and configure Cisco IOS IPS

To get the most from Google, you need to understand Google. Building Research Tools With Google For Dummies explains how Google works and how you can build more effective queries (hint: it’s a lot more than just using the “Advanced Search” techniques!) It even shows you how to think like a researcher and how to package the results of your research so it means something to your audience. You’ll be able to:

• Understand Google research techniques and use the custom search-related syntax
• Recognize Google’s strengths—and limitations
• Target your search by using Google operators
• Use Google to research photos, or even an entire industry
• Improve the effectiveness of your results by understanding Google’s comparative methodology
• Build custom tools using WDSL and Web Services