This concise handbook targeted at Linux administrators and virtualization enthusiasts is ideal for professionals wanting an easy-to-navigate reference when working with Xen and virtualization. It offers bite-sized practical walkthroughs and experiential solutions for many common virtualization tasks using Xen. Using Fedora Core as host operating system, it shows how to add Xen support and create guest domains running different operating systems, then dissects a range of common virtualization tasks. Originally developed in 2003 at the University of Cambridge Computer Laboratory, Xen is an open-source paravirtualization technology allowing multiple operating systems to run on one physical hardware resource with near native performance. Xen supports several operating systems-Linux, FreeBSD, Windows, and NetBSD. There are now commercial versions of Xen that build on of the open-source version with additional enterprise features; this book explores and uses the open-source version of Xen. (more…)

This book gets you started with LINQ and shows how it will make your programming life easier by making use of new features from the .NET Framework 3.0. This book is split into seven chapters, each of which is dedicated to presenting a feature of LINQ and its usage in real-life scenarios. Language Integrated Query (LINQ) is a new feature in Visual Studio 2008 that extends its query capabilities, using C# and Visual Basic. Visual Studio 2008 comes with LINQ provider assemblies that enable the use of LINQ with data sources such as in-memory collections, SQL relational databases, ADO.NET Datasets, XML documents, etc. In Visual Studio 2008, Visual C# and Visual Basic are the languages that implement the LINQ language extensions. LINQ language extensions use the new standard query operators API, which is the query language for any collection that implements IEnumerable. (more…)