This volume provides hands-on methodology for designing effective network-level security systems for your corporate intranet or extranet. Using real-world examples and referencing intranet and extranet technology, this guidebook for IT professionals shows how to configure network and security elements such as routers, switches, servers and firewalls to achieve top-notch security. Components of effective security are critically reviewed in detail, including different types of firewalls, such as Packet Filters, Stateful and Application level proxy devices, and encryption schemes, such as DES, RSA, and IPSEC. Secure data transport and data access are also discussed, as well as the use of remote intelligent agents on network devices and servers. The book discusses how to evaluate security options based on requirements such as cost, complexity, and performance, and network and service management issues. It seeks to close the gap between theory and implementation by featuring detailed case studies and an interactive approach with diagrams and configurations.

This newly revised edition of the ground-breaking Artech House bestseller, SIP: Understanding the Session Initiation Protocol gives you a thorough and up-to-date understanding of this revolutionary protocol for call signaling and IP Telephony. The second edition includes brand new discussions on the use of SIP for wireless multimedia communications. It explains how SIP is powerful "rendezvous" protocol that leverages mobility and presence to allow users to communicate using different devices, modes, and services anywhere they are connected to the Internet You learn why SIP has been chosen by the 3GPP (3rd Generation Partnership Program for wireless cell phones) as the core signaling, presence, and instant messaging protocol.

Supported by global case studies highlighting good practice, and from the results of a survey of Top UK Corporate Intranet developers and consultants, this book addresses practical business concerns and technical issues. It includes advice and commentary received first-hand from professionals experienced in their deployment, operational management and continuing development.

Written by today's leading experts in industry and academia, Wireless IP and Building the Mobile Internet is the first book to take a comprehensive look at the convergence of wireless and Internet technologies that are giving rise to the mobile wireless Internet. This cutting-edge resource provides you with an overview of all the elements required to understand and develop future IP based wireless multimedia communications and services. The book shows you how to integrate the latest technologies in mobility, wireless, and the Internet to achieve workable end-to-end solutions. You get detailed coverage of wireless IP and its relationship with other mobile technologies such as GPRS and UMTS. Moreover, this essential reference features discussions on wireless IP evolution; quality of service; resource management; TCP/IP in wireless IP networks; handoff, mobility and signaling; and services and applications. Essential reading for practicing mobile communications engineers, designers, and engineering managers, the book is also easily adoptable as a text for graduate-level courses.

This textbook presents computer networks to electrical and computer engineering students in a manner that is clearer, more interesting, and easier to understand than other texts. All principles are presented in a lucid, logical, step-by-step manner. As much as possible, the authors avoid wordiness and giving too much detail that could hide concepts and impede overall understanding of the material. Ten review questions in the form of multiple-choice objective items are provided at the end of each chapter with answers. The review questions are intended to cover the little “tricks” which the examples and end-of-chapter problems may not cover. They serve as a self-test device and help students determine how well they have mastered the chapter.

The Handbook of Information Security is a definitive 3-volume handbook that offers coverage of both established and cutting-edge theories and developments on information and computer security. The text contains 180 articles from over 200 leading experts, providing the benchmark resource for information security, network security, information privacy, and information warfare.