ОС и сети

The ultimate reference guide for network administrators Network administrators now have a single, convenient place to turn for all the information they need. Networking All-in-One For Dummies, 4th Edition is like ten books in one, covering such topics as networking basics, network security, setting up TCP/IP and connecting to the Internet, handling mobile devices, and much more. This valuable book covers all the newest updates and trends, including Windows 7 and Windows Server 2008 R2. A single-source reference for network administrators Includes ten minibooks: Networking Basics; Building a Network; Network Administration and Security; TCP/IP and the Internet; Wireless Networking; Telecom, Convergence, and Mobile Devices; Windows Server 2008 Reference; Using Other Windows Servers; Linux Networking Reference; and Appendices Explores the latest technologies in broadband, storage, and back-up Delves into new trends in networking and includes the latest Windows Server 2008 R2 and Windows 7 updates System administrators will want to keep this practical all-in-one guide within reach.

IT professionals who want to move into the networking side in a corporate or enterprise setting will find the detailed content they need to get up to speed on the very latest networking technologies; plus, current networking professionals will find this a valuable and up-to-date resource. This hands-on guide is designed so that you can select, design, and implement an actual network using the tutorials and steps in the book. Coverage includes an overview of networking technologies, including the hardware, software, transmission media, and data transfer processes; in-depth coverage of OSI and TCP/IP reference models; operating systems and other systems software used in today?s networks; LANs, WANS, and MANs, including the components and standards that operate within each type of area network; and more.

This much-needed update to the bestselling guide on the extensive changes to the local area networks (LAN) switching technologies explains why LAN switching technologies are critical to network design. This in-depth guide covers the capabilities, application, and design of LAN switches and switched internetworks and examines the significant changes that have taken place since the publication of the first edition seven years ago. You’re sure to appreciate the witty writing style and easy-to-follow format on such an often-complicated subject matter.

The only guide for developers and power users on how to build PC connectivity applications for Symbian OS. This unique handbook provides all the information that is needed for the job. Fully worked examples and a do's and don'ts section provide design recommendations and expose common pitfalls giving a highly practical focus. Explains the relevant parts of the protocols that need to be used Demonstrates how to create your own device side components to provide new services Shows how to handle custom servers and socket servers

After September 11th, the Department of Defense (DoD) undertook a massive and classified research project to develop new security methods using technology in order to protect secret information from terrorist attacks Written in language accessible to a general technical reader, this book examines the best methods for testing the vulnerabilities of networks and software that have been proven and tested during the past five years An intriguing introductory section explains why traditional security techniques are no longer adequate and which new methods will meet particular corporate and industry network needs Discusses software that automatically applies security technologies when it recognizes suspicious activities, as opposed to people having to trigger the deployment of those same security technologies

Richard Harrison’s existing books are the bestsellers in the Symbian Press Portfolio. His latest book, co-written with Mark Shackman is the successor to «Symbian OS C++ for Mobile Phones» Volumes One and Two. Written in the same style as the two previous volumes, this is set to be another gem in the series. The existing material from the volumes will be combined, with explanations and example code updated to reflect the introduction of Symbian OS v9. New and simplified example application will be introduced, which will be used throughout the book. The reference and theory section in particular sets this book apart from the competition and complements other books being proposed at this time. Anyone looking for a thorough insight into Symbian OS C++ before moving onto specialize on particular Symbian OS phones need this book! It will not teach people how to program in C++, but it will reinforce the techniques behind developing applications in Symbian OS C++, and more. This innovative new book covers Symbian OS fundamentals, core concepts and UI. Key highlights include: A quick guide to Kernel Platform security Publishing Applications View Architecture Multi-User games

Get up to speed on Symbian OS v7.0s with this new, from the source reference guide. After a brief introduction to Symbian OS fundamentals the book focuses on describing the interaction between the OS and the application, broadly following the lifecycle of an application. It describes the new features particular to v7.0s and provides conceptual and theoretical underpinnings to give the reader a thorough understanding of the OS. Aims to build a general understanding of Symbian OS, not just for a particular smartphone or UI Packed with code and examples Details advanced features such as user interfaces, files and views, multimedia services and communications, and messaging

Here's your handbook to Nortel VPN Router If you're a beginning-to-intermediate-level networking professional, this guide lays the groundwork you need to establish and manage your network with VPN Router. Everything is here-hardware, software, laboratory set-ups, real-world examples, and, most importantly, advice gleaned from the authors' first-hand experiences. From understanding the equipment to deployment strategies, management and administration, authentication, and security issues, you'll gain a working knowledge of VPN Router. You will explore tunneling protocols, VoIP, troubleshooting, and exercises to help you apply the Nortel VPN Router in your own environment. This book prepares you to handle the project and provides a resource for future reference. Manage the complexities of Nortel's VPN Router Review the newest networking standards Become acquainted with all the tools in the Nortel VPN Router portfolio, and apply them to your organization's needs Deploy a VPN Router in a Small Office or Home Office (SOHO) network or a large corporate network Learn to apply security features such as a stateful firewall, Network Address Translation (NAT), port forwarding, and user and Branch Office Tunnel (BOT) termination Establish security for VoIP and roaming wireless connections Explore the Nortel VPN Client software, supported platforms, installation and configuration information, and basic VPN Client concepts Maximize the effectiveness of your Nortel VPN Router solution

Optical Networking Best Practices Handbook presents optical networking in a very comprehensive way for nonengineers needing to understand the fundamentals of fiber, high-capacity, high-speed equipment and networks, and upcoming carrier services. The book provides a practical understanding of fiber optics as a physical medium, sorting out single-mode versus multi-mode and the crucial concept of Dense Wave-Division Multiplexing.

As Internet traffic grows and demands for quality of service become stringent, researchers and engineers can turn to this go-to guide for tested and proven solutions. This text presents the latest developments in high performance switches and routers, coupled with step-by-step design guidance and more than 550 figures and examples to enable readers to grasp all the theories and algorithms used for design and implementation.

This book is a quantitative text, which focuses on the real issues behind serious modeling and analysis of communications networks. The author covers all the necessary mathematics and theory in order for students to understand the tools that optimize computer networks today. Covers both classical (e.g. queueing theory) and modern (e.g. pricing) aspects of networking Integrates material on communication networks with material on modeling/analyzing and designing such networks Includes a Solution Manual

In this book, experts from Symbian, Nokia and Sun Microsystems expose the power of Java ME on Symbian OS. The book introduces programming with Java ME on Symbian OS, and also reveals what is found 'under-the-hood'. It is logically divided into four main sections: Introduction to Java ME and programming fundamentals Java ME on Symbian OS (core and advanced chapters) Drill down into MSA, DoJa and MIDP game development Under the hood of the Java ME platform The book also includes two appendixes onSNAP Mobile technology and WidSets. With over ten years' experience in Java technologies and over four years' experience at Symbian, the lead author Roy Ben Hayun now works for Sun Microsystems as a systems architect in the Engineering Services group, which leads the development, marketing and productizing of Java ME CLDC and CDC on different platforms.

If you want to write mobile applications without the idioms of Symbian C++, have existing software assets that you'd like to re-use on Symbian devices, or are an open source developer still waiting for an open Linux-based device to gain significant market penetration, this is the book for you! Beginning with an introduction to the native programming environments available and descriptions of the various technologies and APIs available, you will first learn how to go about porting your code to the Symbian platform. Next, you will discover how to port to Symbian from other common platforms including Linux and Windows. Finally, you can examine sample porting projects as well as advanced information on topics such as platform security. The author team consists of no less than six Forum Nokia Champions, together with technical experts from the Symbian community, either working on Symbian platform packages or third party application development. With this book, you will benefit from their combined knowledge and experience. In this book, you will learn: How to port and make use of existing open source code to speed up your development projects How to port applications from other popular mobile platforms to the Symbian platform How to write code that is portable across multiple platforms The APIs in the Symbian platform for cross-platform development, such as support for standard C/C++ and Qt.

As a co-founder of Symbian and former executive of Psion Software, David Wood has been actively involved in well over 100 smartphone development projects worldwide. Over the time spent on these projects, he has come to understand the key issues which determine the difference between successful and unsuccessful projects for Symbian OS. This book highlights and explains: How to tame the awesome inner complexity of smartphone technology Optimal project team organisation, combining agility and reliability The design and the philosophy behind key features of Symbian OS The potential trouble spots of smartphone integration, testing, and optimisation How to receive the full benefit of the diverse skills in the extensive Symbian partner ecosystem The methods that are most likely to deliver commercial success when using Symbian OS The wider significance of Symbian OS skills and expertise in the evolving mobile marketplace The particular importance of software leaders in bringing breakthrough smartphone products to the market

This book is like a good tour guide.It doesn't just describe the major attractions; you share in the history, spirit, language, and culture of the place. –Henning Schulzrinne, Professor, Columbia University Since its birth in 1996, Session Initiation Protocol (SIP) has grown up. As a richer, much more robust technology, SIP today is fully capable of supporting the communication systems that power our twenty-first century work and life. This second edition handbook has been revamped to cover the newest standards, services, and products. You'll find the latest on SIP usage beyond VoIP, including Presence, instant messaging (IM), mobility, and emergency services, as well as peer-to-peer SIP applications, quality-of-service, and security issues–everything you need to build and deploy today's SIP services. This book will help you * Work with SIP in Presence and event-based communications * Handle SIP-based application-level mobility issues * Develop applications to facilitate communications access for users with disabilities * Set up Internet-based emergency services * Explore how peer-to-peer SIP systems may change VoIP * Understand the critical importance of Internet transparency * Identify relevant standards and specifications * Handle potential quality-of-service and security problems

Blade server systems and virtualization are key building blocks for Next Generation Enterprise Data centers Blades offer modular, pre-wired, ultra high-density servers (up to 10x traditional servers) with shared components (power, cooling, switches) – reducing complexity and cost, and improving flexibility, availability, manageability, and maintainability Virtualization enables consolidation of physical servers by allowing many virtual servers to run concurrently on one physical server – improving system utilization, reducing the total number of physical servers, reducing costs, and increasing flexibility This is the first book covering these complementary technologies and how, together, they provide a strong foundation for the future It examines the history, architectures, features, examples, and user case studies of blade systems and virtualization, and offers guidance and considerations for how to evaluate and implement solutions

The spiraling growth of digital information makes the ISM book a «must have» addition to your IT reference library. This exponential growth has driven information management technology to new levels of sophistication and complexity, exposing a skills gap that challenge IT managers and professionals alike. The ISM book, written by storage professionals from EMC Corporation, takes an ‘open’ approach to teaching information storage and management, focusing on concepts and principles – rather that product specifics – that can be applied in all IT environments The book enables existing and aspiring IT professionals, students, faculty, and those simply wishing to gain deeper insight to this emerging pillar of IT infrastructure to achieve a comprehensive understanding of all segments of information storage technology. Sixteen chapters are organized into four sections. Advanced topics build upon the topics learned in previous chapters. Section 1, «Information Storage and Management for Today’s World»: Four chapters cover information growth and challenges, define a storage system and its environment, review the evolution of storage technology, and introduce intelligent storage systems. Section 2, «Storage Options and Protocols»: Six chapters cover the SCSI and Fibre channel architecture, direct-attached storage (DAS), storage area networks (SANs), network-attached storage (NAS), Internet Protocol SAN (IP-SAN), content-addressed storage (CAS), and storage virtualization. Section 3, «Business Continuity and Replication»: Four chapters introduce business continuity, backup and recovery, local data replication, and remote data replication. Section 4, «Security and Administration»: Two chapters cover storage security and storage infrastructure monitoring and management. The book’s supplementary web site provides up-to-date information on additional learning aids and storage certification opportunities.

An up-to-date insight into Communications programming at Symbian, incorporating changes introduced by the latest version of Symbian OS (Symbian OS V9), which is the basis of the new phones currently reaching the market. It guides developers through the Symbian OS communications architecture and provides essential information on the communications models and programming interfaces used by Symbian OS. Clear up-to-date explanations of how Symbian OS Communications works, demonstrated with full code examples in each chapter Written by experienced Symbian engineer who leads the Symbian Communications Programming team Covers special topics to include Bluetooth, HTTP, Serial Communications, OBEX and messaging

Explore the potential of mobile P2P networks Mobile Peer to Peer (P2P): A Tutorial Guide discusses the potential of wireless communication among mobile devices forming mobile peer to peer networks. This book provides the basic programming skills required to set up wireless communication links between mobile devices, offering a guide to the development process of mobile peer to peer networks. Divided into three sections, Part I briefly introduces the basics of wireless technologies, mobile architectures, and communication protocols. Detailed descriptions of Bluetooth, IEEE802.11, and cellular communication link are given and applied to potential communication architectures. Part II focuses on programming for individual wireless technologies, and gives an understanding of the programming environment for individual wireless technologies. In addition, Part III provides advanced examples for mobile peer to peer networks. Introduces the basics of short-range/wireless technologies (such as Bluetooth and IEEE 802.11 Wireless LAN), mobile architectures, and communication protocols Explains the basic programming environment and the basic wireless communication technologies such as Bluetooth, WiFi (IEEE802.11), and cellular communication examples Discusses the advancements in meshed networks, mobile social networks and cooperative networks Provides detailed examples of mobile peer to peer communication including, social mobile networking, cooperative wireless networking, network coding, and mobile gaming Includes an accompanying website containing programming examples as source code Mobile Peer to Peer (P2P): A Tutorial Guideis an invaluable reference for advanced students on wireless/mobile communications courses, and researchers in various areas of mobile communications (mashups, social mobile networks, network coding, etc.) Undergraduate students and practitioners wishing to learn how to build mobile peer to peer networks will also find this book of interest.

Take a look inside Symbian OS with an under-the-hood view of Symbian's revolutionary new real-time smartphone kernel Describes the functioning of the new real-time kernel, which will become ubiquitious on Symbian OS phones in the next 5-10 years Will benefit the base-porting engineer by providing a more solid understanding of the OS being ported Contains an in-depth explanation of how Symbian OS drivers work. Device drivers have changed considerably with the introduction of a single code – this book helps those converting them to the new kernel The book has broad appeal and is relevant to all who work with Symbian OS at a low level, whatever Symbian OS they are targeting Written by the engineers who actually designed and built the real-time kernel