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Virtualization has become a “megatrend”—and for good reason. Implementing virtualization allows for more efficient utilization of network server capacity, simpler storage administration, reduced energy costs, and better use of corporate capital. In other words: virtualization helps you save money, energy, and space. Not bad, huh? If you’re thinking about “going virtual” but have the feeling everyone else in the world understands exactly what that means while you’re still virtually in the dark, take heart. Virtualization for Dummies gives you a thorough introduction to this hot topic and helps you evaluate if making the switch to a virtual environment is right for you. This fun and friendly guide starts with a detailed overview of exactly what virtualization is and exactly how it works, and then takes you on a tour of the benefits of a virtualized environment, such as added space in overcrowded data centers, lower operations costs through more efficient infrastructure administration, and reduced energy costs through server consolidation. Next, you’ll get step-by-step guidance on how to: Perform a server virtualization cost versus benefit analysis Weigh server virtualization options Choose hardware for your server virtualization project Create a virtualized software environment Migrate to—and manage—your new virtualized environment Whether you’re an IT manager looking to sell the idea to your boss, or just want to learn more about how to create, migrate to, and successfully manage a virtualized environment, Virtualization for Dummies is your go-to guide for virtually everything you need to know.

Beginning Linux Programming, Fourth Edition continues its unique approach to teaching UNIX programming in a simple and structured way on the Linux platform. Through the use of detailed and realistic examples, students learn by doing, and are able to move from being a Linux beginner to creating custom applications in Linux. The book introduces fundamental concepts beginning with the basics of writing Unix programs in C, and including material on basic system calls, file I/O, interprocess communication (for getting programs to work together), and shell programming. Parallel to this, the book introduces the toolkits and libraries for working with user interfaces, from simpler terminal mode applications to X and GTK+ for graphical user interfaces. Advanced topics are covered in detail such as processes, pipes, semaphores, socket programming, using MySQL, writing applications for the GNOME or the KDE desktop, writing device drivers, POSIX Threads, and kernel programming for the latest Linux Kernel.

Corporations have finally realized the value of collaboration tools for knowledge sharing and Wiki is the open source technology for creating collaborative Web sites, as either a public site on the Internet or on a private intranet site Shows readers how to set up Wikis in a corporate setting or on a personal site so that users can retrieve information, post information, and edit the content Covers everything from choosing a Wiki engine to administration and maintenance Discusses the advantages of using Wiki in a corporate environment, which companies such as Microsoft, Boeing, Disney, and Motorola have already discovered

Company just hooked you up to a network and you’re wondering what the heck you’re supposed to do with it? Tired of burning spreadsheets onto CDs just so you can share them with coworkers, and you’re wondering what it’ll take to set up a network in your organization? Been tasked with setting up a network and you don’t have a clue about where to begin? Don’t fret, you’ll find all the answers you’re looking for in Networking for Dummies. Written for even the most network-shy novice, it begins with the most basic of basics—“A network is nothing more than two or more computers connected by a cable (or wireless adapter) so that they can share information”—and progresses through all the essentials, from cables, routers and hubs to building a wireless network. In clear, simple language, peppered with enough wry quips and jabs at the cult of IT to make it fun, Doug Lowe walks you through: What a network is and how to use it How to build a wired or wireless network How to secure and optimize a network How to troubleshoot a network Safely connecting a network to the Internet Networking with all major operating systems This new edition of the bestselling guide features extensive updates on the latest networking tools and trends—including new Windows Vista and Server 2003 R2—the latest broadband options, new storage and back-ups, and an all new-chapter on VoIP and Internet telephony.

"If one book can help you master Vista, this is it." –Fred Langa, former editor-in-chief of Byte Magazine «These two know more about Windows than Microsoft does.» –Chris Pirillo, editor of Lockergnome.com Go beyond Microsoft's Help guide and discover the true secrets of Windows Vista that are essential to power users. Written by two of the most recognized Windows authorities, this resource provides you with numerous tips, tricks, and undocumented features that aren't available anywhere else. You'll find extensive screenshots, tables, and illustrations that clearly show how to achieve optimal performance, fix desktop problems, and take advantage of the robust features of Windows Vista. The Insider's Guide to Installing and upgrading your system (see Chapter 2) Quickly finding and organizing all of your files (see Chapter 5) Taking advantage of new security features (see Chapter 8) Creating your own movies and DVDs (see Chapter 12) Playing state-of-the-art games with amazing effects (see Chapter 14) Going wireless using Windows Vista mobility features (see Chapter 15) Managing your schedule with Windows® Calendar (see Chapter 20)

A rootkit is a type of malicious software that gives the hacker «root» or administrator access to your network. They are activated before your system's operating system has completely booted up, making them extremely difficult to detect. Rootkits allow hackers to install hidden files, processes, and hidden user accounts. Hackers can use them to open back doors in order to intercept data from terminals, connections, and keyboards. A rootkit hacker can gain access to your systems and stay there for years, completely undetected. Learn from respected security experts and Microsoft Security MVPs how to recognize rootkits, get rid of them, and manage damage control. Accompanying the book is a value-packed companion CD offering a unique suite of tools to help administrators and users detect rootkit problems, conduct forensic analysis, and make quick security fixes. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Here's the Windows 2000 Server book every administrator will need—one that contains only the most advanced information rather than rehashing the basics yet again. Written by a Windows 2000 expert and security consultant, this book provides high-level coverage of Windows 2000 system design and implementation, from planning and security to daily maintenance and troubleshooting. Includes a detailed discussion of assessing your network's security needs and implementing an effective solution. Use this book as a supplement to Mastering Windows 2000 Server.

.NET Web Services Solutions offers just what its title states: practical solutions to the real challenges you face as you use .NET to create applications that communicate with web services and–more to the point–to build and deploy web services of your own. By the time you're done, you'll understand how the web services platform works, because chapter by chapter you get all the hands-on instruction, detailed examples, and inside advice you need to make your project succeed. For example, you'll learn to connect to a database using ADO.NET operations, carry out the exchange of binary files, and extend the reach of your web service so that it touches e-mail, fax machines, mobile devices, and remote PCs. You'll master techniques for making your web service available to other programs–but you'll also discover ways to control its availability through authentication and encryption. Kris Jamsa's expert coverage goes above and beyond, providing advanced optimization tips, including instructions for implementing asynchronous operations. He also shows you a neat trick for calling a web service from within an HTML page using JavaScript. Want an even neater trick? Check out the section on making money with your web service, where you'll find a billing model that will work for you. The final chapter brings it all together, walking you through a cohesive, highly functional example of an employment web service.

You’ve probably heard the expression, “It’s time to cut the cord.” Well, it may be time to “cut the cables” at your office and free yourself from your desk and computer. Wireless networks are the waves of the future—literally. Wireless Networks For Dummies guides you from design through implementation to ongoing protection of your system and your information so you can: Remain connected to the office in airports and hotels Access the Internet and other network resources in the lunchroom, conference room, or anywhere there’s an access point Use your PDA or laptop to query your database from the warehouse or the boardroom Check e-mail wirelessly when you’re on the road Get rid of the cable clutter in your office Wireless Networks For Dummies was coauthored by Barry D. Lewis, CISSP, and Peter T. Davis, who also coauthored Computer Security For Dummies. Barry Lewis is president of an information security consulting firm and an internationally known leader of security seminars. Peter Davis is founder of a firm specializing in the security, audit, and control of information. Together, they cut through the cables, clutter, and confusion and help you: Get off to a quick start and get mobile with IrDA (Infrared Data Association) and Bluetooth Perform a site survey and select the right standard, mode, access point, channel and antenna Check online to verify degree of interoperability of devices from various vendors Install clients and set up roaming Combat security threats such as war driving, jamming, hijacking, and man-in-the-middle attacks Implement security and controls such as MAC (Media Access Control) and protocol filtering, WEP (Wireless Equivalent Privacy), WPA, (Wi-Fi Protected Access), EAP (Extensible Authentication Protocol), and VPN (Virtual Private Network) Set up multiple access points to form a larger wireless network Complete with suggestions of places to get connected, Web sites where you can get more information, tools you can use to monitor and improve security, and more, Wireless Networks For Dummies helps you pull the plug and go wireless!

Windows is the world’s most popular operating system, and Windows For Dummies is the bestselling computer book ever. When you look at Windows XP For Dummies, 2nd Edition, it’s easy to see why. Here’s all the stuff you want to know, served up in plain English and seasoned with a few chuckles. But make no mistake, this book means business. Author Andy Rathbone listened to what you wanted to know, and this edition is loaded with additional information about E-mail, faxing, and troubleshooting Maximizing security features Customizing and upgrading Windows XP Multimedia applications—CDs, digital music and photos, video, and more Answers to questions asked by thousands of Windows users If you’re just getting started with Windows XP, you’ll find Windows XP For Dummies, 2nd Edition is a lot easier than trying to get the fourth-grader next door to explain it to you. (Andy Rathbone is a lot more patient.) There’s a whole section devoted to “Windows XP Stuff Everybody Thinks You Already Know,” so you can get the hang of the basics quickly and in the privacy of your own home. And if you’ve been around a couple of generations of Windows, you’ll be especially interested in how to squeeze maximum security from the beefed-up anti-spam and firewall features in Service Pack 2. Windows XP For Dummies, 2nd Edition is sort of like a buffet—you can sample everything, or just stick with the stuff you know you like. You’ll find out how to Locate programs and files, organize your information, and fax, scan, or print documents Get online safely, send and receive e-mail, work with Internet Explorer’s security toolbar, and steer clear of pop-ups, viruses, and spam Make Windows XP work the way you want it to, share your computer while maintaining your privacy, set up a network, and perform routine maintenance Transfer and organize pictures from your digital camera, edit digital video, and create custom CDs of your favorite tunes Use Windows XP’s troubleshooting wizards and become your own computer doctor With its task-oriented table of contents and tear-out cheat sheet, Windows XP For Dummies, 2nd Edition is easy to use. You can quickly find what you want to know, and you just may discover that this book is as important to your computer as the power cord.

An indispensable working resource for IT professionals moving to Linux-based network systems This new edition of Linda and Al McKinnon's book satisfies a long-standing need among IT professionals for a comprehensive guide to installing and administering Linux-topics usually covered in a more superficial manner as parts of larger Linux references. In addition to providing complete step-by-step installation instructions, this fast-paced guide shows readers how to perform all essential administrative tasks, including creating users and passwords, managing files and directories, and customizing the environment. Readers also learn how to make the most of Linux Shells and utilities, use the vi editor, and much more. Responding to the ongoing needs of IT professionals for current and reliable information on the latest technologies, Wiley Computer Publishing introduces the Gearhead Press titles. These books, written by accomplished trainers in their respective fields, focus on real-world examples and case studies to give readers the best information on leading topics. The Gearhead Press titles are characterized by two imprints: In the Trenches and Point to Point-both series include fast-paced books written by fellow IT professionals who have been there and done that. In the Trenches books introduce technologies, guide readers to proficiency, and serve as practical, hands-on references after the initial tasks are accomplished. The Point to Point titles invite readers to join an IT team at a model company and implement technologies in real-world environments-demonstrating actual problems and solutions.

A no-nonsense guide for IT professionals While Linux vendors promise speed, efficiency, and reliability, it's the IT professionals who must deliver on that promise. Updated to reflect all the recent changes to Linux version 2.4, this new edition of the McKinnons' popular guide gets system administrators and engineers quickly up to speed on everything they need to know to customize and upgrade their Linux systems. From swap-space options, disk partitions, and installation, through printer and video device configuration and installing and upgrading the Linux kernel, this guide follows the highly successful, classroom-tested approach that the McKinnons have refined during their years as professional trainers. Responding to the ongoing needs of IT professionals for current and reliable information on the latest technologies, Wiley Computer Publishing introduces the Gearhead Press titles. These books, written by accomplished trainers in their respective fields, focus on real-world examples and case studies to give readers the best information on leading topics. The Gearhead Press titles are characterized by two imprints: In the Trenches and Point to Point-both series include fast-paced books written by fellow IT professionals who have been there and done that. In the Trenches books introduce technologies, guide readers to proficiency, and serve as practical, hands-on references after the initial tasks are accomplished. The Point to Point titles invite readers to join an IT team at a model company and implement technologies in real-world environments-demonstrating actual problems and solutions.