Product Description
From an industry insider–a close look at high-performance, end-to-end switching solutions
Load balancers are fast becoming an indispensable solution for handling the huge traffic demands of the Web. Their ability to solve a multitude of network and server bottlenecks in the Internet age ranges from dramatic improvements in server farm scalability to removing the firewall as a network bottleneck. This book provides a detailed, up-to-date, technical discussion of this fast-growing, multibillion dollar market, covering the full spectrum of topics–from server and firewall load balancing to transparent cache switching to global server load balancing. In the process, the author delivers insight into the way new technologies are deployed in network infrastructure and how they work. Written by an industry expert who hails from a leading Web switch vendor, this book will help network and server administrators improve the scalability, availability, manageability, and security of their servers, firewalls, caches, and Web sites. Continue Reading »

Product Description
Traditional PBX systems have often been expensive and proprietary. With 3CX, you can now create an easy-to-use, complete, and cost-effective phone system on Microsoft Windows. This practical guide offers the insight that a reader needs to exploit the potential that 3CX has to offer.

This practical hands-on book covers everything you need to know about designing, installing and customizing 3CX to create an all-inclusive phone system. It takes a real-world approach that walks you through all aspects of 3CX and its features. From installing the software, to backing things up, to understanding what hardware you need – this book covers it all.

The 3CX IP PBX Tutorial will take you from knowing very little about VoIP to almost expert level with detailed how-tos on every aspect of 3CX. Starting with the basics, and covering the free version of 3CX as well as the more advanced features of the Enterprise version, you will learn it all.

In other words, this book covers numerous topics such as installation and configuration of 3CX, choosing a VoIP Provider, integration of a trunk into 3CX, the commonly used 3CX hardware, and backing up your phone system. Continue Reading »

Product Description
“The New World of Wireless is an impressive, thoughtful journey that helps business leaders see over the horizon to our unwired future, where we belong.” –John Chen, Chairman, CEO, and President, Sybase, Inc. “Snyder’s book provides a thought-provoking look into the 4G future. While technical details abound, the importance of this work relates more to the social, business, and political implications of 4G technology. Snyder has provided us a glimpse of how different our lives will be in the not-so-distant future, and done so with amazing insight. It is truly a must-read.” –StantonSloane, PhD, CEO, SRA International Prepare for a Wireless Revolution That May Prove Even More Disruptive Than the Internet Revolution Why next-gen 4G technology will lead to a radical, qualitative shift in how you use wireless How to leverage “digital swarms” of distributed, self-organizing groups to transform your business Indispensable new insight for CXOs, board members, strategists, and consultants in all industries Next-generation 4G wireless technology won’t just be faster: It will offer breakthrough opportunities for competitive advantage. 4G will accelerate a massive power shift that’s already well underway: the emergence of decentralized, self-organizing “digital swarms” both inside and outside the enterprise. This book will help you understand both the technology and the radically new organizations it will make possible. You’ll discover how these changes will affect you…how to innovate around 4G wireless to build profitability and market share…how to anticipate and manage business risks you’ve never even imagined before…how to harness the relentless “digital swarms” that are now rising to power in your company and your marketplace!
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Product Description
Get your Web security, network perimeter security, and application layer security gateway up and running smoothly. This indispensible, single-volume reference details the features and capabilities of Microsoft(R) Forefront(R) Threat Management Gateway (TMG). You’ll gain the real-world insights, implementation and configuration best practices, and management practices you need for on-the-job results.

Discover how to:
* Implement TMG
* integrated security features
* Analyze your Web and perimeter security requirements and infrastructure
* Plan, install, and configure TMG
* Implement network intrusion prevention, proxy, caching, filtering
* Configure security for the Web, Microsoft(R) Exchange Server, and SharePoint(R) Products and Technologies
* Implement remote access and site-to-site VPNs
* Select and configure clients
* Monitor and troubleshoot protected systems with Network Monitor 3 and other tools
* Use scripting to configure systems and automate administration
* Plus, get a fully searchable eBook on the companion CD
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Product Description
SIP is the most important VoIP protocol and OpenSIPS is clearly the open source leader in VoIP platforms based on pure SIP. The whole telecommunication industry is changing to an IP environment, and telephony in the way we know today will disappear in less than ten years. SIP is the protocol leading this disruptive revolution and it is one of the main protocols on next-generation networks. While a VoIP provider is not the only kind of SIP infrastructure created using OpenSIPS, it is certainly one of the most difficult to implement.

This book will give you a competitive edge by helping you to create a SIP infrastructure capable of handling tens of thousands of subscribers. You can extend the examples given in this book easily to other applications such as a SIP router, load balancing, IP PBX, and Hosted PBX as well. This book is an update of the title Building Telephony Systems with OpenSER.

The book starts with the simplest configuration and evolves chapter by chapter teaching you how to add new features and modules. It will first teach you the basic concepts of SIP and SIP routing. Then, you will start applying the theory by installing OpenSIPS and creating the configuration file. You will learn about features such as authentication, PSTN connectivity, user portals, media server integration, billing, NAT traversal, and monitoring. The book uses a fictional VoIP provider to explain OpenSIPS. The idea is to have a simple but complete running VoIP provider by the end of the book.
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