In the technological arena, three years is a lifetime. Since the first edition of this book was published in 2004, built-in security measures on compilers and operating systems have become commonplace, but are still far from perfect. Arbitrary-code execution vulnerabilities still allow attackers to run code of their choice on your system—with disastrous results. In a nutshell, this book is about code and data and what happens when the two become confused. You'll work with the basic building blocks of security bugs—assembler, source code, the stack, the heap, and so on. You'll experiment, explore, and understand the systems you're running—and how to better protect them.

As the demand for broadband services continues to grow worldwide, traditional solutions, such as digital cable and fiber optics, are often difficult and expensive to implement, especially in rural and remote areas. The emerging WiMAX system satisfies the growing need for high data-rate applications such as voiceover IP, video conferencing, interactive gaming, and multimedia streaming. WiMAX deployments not only serve residential and enterprise users but can also be deployed as a backhaul for Wi-Fi hotspots or 3G cellular towers. By providing affordable wireless broadband access, the technology of WiMAX will revolutionize broadband communications in the developed world and bridge the digital divide in developing countries. Part of the WiMAX Handbook, this volume focuses on the technologies behind WiMAX, its performance capabilities, and its control mechanisms.

As audio and video conferencing move rapidly into the mainstream, customers and end users are demanding unprecedented performance, reliability, scalability, and security. In Voice and Video Conferencing Fundamentals, three leading experts systematically introduce the principles, technologies, and protocols underlying today’s state-of-the-art conferencing systems. Discover how to use these concepts and techniques to deliver unified, presence-enabled services that integrate voice, video, telephony, networks, and the Internet—and enable breakthrough business collaboration. The authors begin with a clear, concise overview of current voice and video conferencing, including system components, operational modes, endpoints, features, and user interactivity. Next, they illuminate conferencing architectures, offering practical insights for designing today’s complex IP-based conferencing and collaboration systems.

The traditional fortress mentality of system security has proven ineffective to attacks by disruptive technologies. This is due largely to their reactive nature. Disruptive security technologies, on the other hand, are proactive in their approach to attacks.

The subtitle says it all: ``A Survival Guide for Linux Security''. This book is the result of an iterative process of consulting with experts in the field of computer and network security. The list of contributors includes staff at well-known organizations like the Computer Emergency Response Team (CERT) and the U.S. Census Bureau, so it is more than just the two main authors' expertise--it is a collaborative effort of 48 experts.

A hands-on guide to protecting Linux data from security risks. Introduces readers to the seven deadly sins of Linux security, showing how to set up firewalls, break in case studies, block spam, develop internal security policies, and recover from an intrusion quickly.

Writing Security Tools and Exploits will be the foremost authority on vulnerability and security code and will serve as the premier educational reference for security professionals and software developers. The book will have over 600 pages of dedicated exploit, vulnerability, and tool code with corresponding instruction. Unlike other security and programming books that dedicate hundreds of pages to architecture and theory based flaws and exploits, this book will dive right into deep code analysis. Previously undisclosed security research in combination with superior programming techniques will be included in both the Local and Remote Code sections of the book.

The Internet, or the ARPANET in its original name, was a remarkable idea. The Net was designed in the late 60's by US ARPA (Advanced Research Projects Agency) to connect distant computers to each other. This was a critical need at a time when each computer was a precious resource of computing power, which, if connected, could be shared among several groups of researchers at multiple physical sites. Like in many other engineering projects, the ARPANET designers could hardly foresee all future uses of their new infrastructure. Probably, the vision of Internet cafes and airport passengers checking email on their laptops was far beyond their imagination...

WiMAX Broadband Wireless Access Technology, based on the IEEE 802.16 standard, is at the origin of great promises for many different markets covering fixed wireless Internet Access, Backhauling and Mobile cellular networks. WiMAX technology is designed for the transmission of multimedia services (voice, Internet, email, games and others) at high data rates (of the order of Mb/s per user). It is a very powerful but sometimes complicated technique.

It's not a job. It's THE job, and here's how to get it. What does your ideal IT security job look like? What will prospective employers expect you to know? What affects how they view you and your skills? What if you haven't had much experience? What if you're not 30 anymore? Here's the crash course in how to discover, apply for, and land the IT security job you want. Written by a squad of highly credentialed security professionals, this guide prepares you with the technical knowledge, interview skills, strategies, and job search techniques you need to find and get the perfect job.

Millions of users create and share Excel spreadsheets every day, but few go deeply enough to learn the techniques that will make their work much easier. There are many ways to take advantage of Excel's advanced capabilities without spending hours on advanced study. Excel Hacks provides more than 130 hacks -- clever tools, tips and techniques -- that will leapfrog your work beyond the ordinary. Now expanded to include Excel 2007, this resourceful, roll-up-your-sleeves guide gives you little known "backdoor" tricks for several Excel versions using different platforms and external applications. Think of this book as a toolbox. When a need arises or a problem occurs, you can simply use the right tool for the job. Hacks are grouped into chapters so you can find what you need quickly.

Advances in Enterprise Information Technology Security provides a broad working knowledge of all the major security issues affecting todays enterprise IT activities. The chapters in this Premier Reference Source are written by some of the worlds leading researchers and practitioners in the filed of IT security. There are no simple and complete answers to the issues of security; therefore, multiple techniques, strategies, and applications are thoroughly examined. This reference work presents the tools to address opportunities in the field, and is an all-in-one reference for IT managers, network administrators, researchers, and students.