A comprehensive guide to understanding and configuring multiservice DWDM, SONET, and SDH architectures

Now you can have the awesome benefits of wireless LANs without falling victim to their notorious security flaws. Leading wireless security expert Lee Barken shows you practical workarounds and fixes for the vulnerabilities in today's WLANs, introduces high-security wireless protocols new to the marketplace, and offers step-by-step instructions for protecting all your wireless information, from the home to the enterprise.This is the definitive and easy-to-use WLAN security book you've been searching for-whether you're a network administrator,security specialist, manager, or home user.

Local-area networks (LANs) are becoming increasingly congested and overburdened because of a dramatic increase in traffic, faster CPUs and operating systems, and more network-intensive applications. Many organizations that use network and computing technology use LAN switching to take advantage of high-speed traffic forwarding and improved performance of traditional Ethernet technologies that don't require costly wiring upgrades or time-consuming host reconfiguration. Cisco LAN Switching Fundamentals provides administrators of campus networks with the most up-to-date introduction to LAN switching within a traditional Ethernet environment.

Becoming a CCSP distinguishes you as part of an exclusive group of experts, ready to take on today's most challenging security tasks. Administration of the Cisco PIX Firewall is a difficult and complex task, critical for protecting a network. Whether you are seeking a PIX-focused certification or the full-fledged CCSP certification, learning what you need to know to pass the Cisco Secure PIX Firewall Advanced (CSPFA) exam will qualify you to keep your company's network safe while meeting business needs.

The book you are about to read will arm you with the knowledge you need to defend your network from attackers—both the obvious and the not so obvious....If you are new to network security, don't put this book back on the shelf! This is a great book for beginners and I wish I had access to it many years ago. If you've learned the basics of TCP/IP protocols and run an open source or commercial IDS, you may be asking "What's next?" If so, this book is for you.

Этот словарь предназначен для тех, кто в силу своих интересов или жизненной необходимости общается с компьютером, забредает в паутину Интернета, осваивает основы программирования, но незнаком с английским языком. В данный словарь вошло около 3000 слов и выражений. Это термины, позволяющие работать в "Виндоус" и некоторых не относящихся к этому пакету программах, а также необходимые для работы с факсом и в Сети. Есть здесь и некоторые расширения имен файлов, и сокращения, а также очень часто встречающиеся выражения. Конечно, искать нужное слово удобнее, ориентируясь в алфавите, который, на всякий случай, помещен после данного предисловия. Что касается грамматических форм, то наиболее распространенные глаголы приводятся не только в настоящем, но и в прошедшем времени, а в случае крайней необходимости даются и личные формы настоящего времени.

This book contains simple examples to provide illustration. The data used in the examples contains information that is not based on any real companies or people. The author and publisher of this book have used their best efforts in preparing this book. The author and publisher make no warranty of any kind, expressed or implied, with regard to the documentation and examples contained in this book. The author and publisher shall not be liable in any event for incidental or consequential damages in connection with, or arising out of the use of, information in this book. The views expressed in this book are the views of the author and do not necessarily reflect the views of the IBM Corporation. This book is not sponsored in any part, or in any manner, by IBM.

IPSec VPN Design consists of three main sections. The first section provides a comprehensive introduction to the IPSec protocol, including IPSec Peer Models. This section also includes an introduction to site-to-site, network-based, and remote access VPNs. The second section is dedicated to an analysis of IPSec VPN architecture and proper design methodologies. Peer relationships and fault tolerance models and architectures are examined in detail. Part three addresses enabling VPN services, such as performance, scalability, packet processing, QoS, multicast, and security. This book also covers the integration of IPSec VPNs with other Layer 3 (MPLS VPN) and Layer 2 (Frame Relay, ATM) technologies; and discusses management, provisioning, and troubleshooting techniques. Case studies highlight design, implementation, and management advice to be applied in both service provider and enterprise environments.

Cisco routers are everywhere that networks are. They come in all sizes, from inexpensive units for homes and small offices to equipment costing well over $100,000 and capable of routing at gigabit speeds. A fixture in today's networks, Cisco claims roughly 70% of the router market, producing high-end switches, hubs, and other network hardware. One unifying thread runs through the product line: virtually all of Cisco's products run the Internetwork Operating System, or IOS.

Targeted towards administrative and support staff in Microsoft networked environments with the aim of automating common administrative tasks, this resource provides practical solutions to common problems through detailed discussions.

In this book, David E. Brandt examines the legal, psychological, and cultural issues relevant to understanding antisocial behavior in adolescence. Based on his own research and a broad analysis of recent work in the field, Brandt identifies the factors that are common in cases of delinquency. The discussion considers the long-term effects of social issues such as poverty as well as psychological issues such as the high levels of stress and anxiety suffered during childhood by many delinquents. He shows how a failure to meet the developmental needs of children—at both the family level and at a broader social and political level—is at the core of the problem of juvenile delinquency. Brandt concludes with an inquiry into how best to prevent delinquency. Programs that address the developmental needs of children, Brandt argues, are more effective than policing, juvenile courts, or incarceration.

The composition of this booklet was originally started because the Computer Science department at Widener University was in desperate need of documentation describing the capabilities of this ``great new Internet link'' we obtained. It's since grown into an effort to acquaint the reader with much of what's currently available over the Internet. Aimed at the novice user, it attempts to remain operating system ``neutral''---little information herein is specific to Unix, VMS, or any other environment. This booklet will, hopefully, be usable by nearly anyone. The purpose of this booklet is two-fold: first, it's intended to serve as a reference piece, which someone can easily grab on the fly and look something up. Also, it forms a foundation from which people can explore the vast expanse of the Internet. Zen and the Art of the Internet doesn't spend a significant amount of time on any one point; rather, it provides enough for people to learn the specifics of what his or her local system offers. One warning is perhaps in order---this territory we are entering can become a fantastic time-sink. Hours can slip by, people can come and go, and you'll be locked into Cyberspace. Remember to do your work!

This volume assembles recent perspectives and fresh approaches in the field of criminology. It gives an overview of new paths that criminologists take to meet the challenges of social dynamics in different fields of the discipline. Scholars of criminology and sociol-legal studies have contributed to the volume thus furthering an integrative and complex perspective on crime and control. This volume includes the papers from a conference that took place at the International Institute for the Sociology of Law at Onati, Spain, from 23 to 24 October 1997. The VW-Foundation in Germany generously funded the conference. We are in particular indebted to Dr Hagen Hof of the VW-Foundation for his advice and support. We owe further thanks to the staff of the International Institute at Onati, especially Mrs Malen Gordoa, who all contributed to the perfect organisation and the inspiring atmosphere of the workshop.

This informative text describes how to build wireless sensor networks from the layers of the communication protocol through the design of network nodes. It also describes the design features of the wireless devices themselves.

This is a book about social change in the United States during the twentieth century. It relies on statistical trends to tell that awesome story. The twentieth century was the first century that could be measured in a systematic manner. Those who saw it coming included President James A. Garfield who, while still a congressman in 1869, observed in a speech to the U.S. House of Representatives: The developments of statistics are causing history to be rewritten. Till recently, the historian studied nations in the aggregate, and gave us only the story of princes, dynasties, sieges, and battles…. Now, statistical inquiry leads him into the hovels, homes, workshops, mines, fields, prisons, hospitals, and all other places where human nature displays its weakness and its strength. In these explorations he discovers the seeds of national growth and decay, and thus becomes the prophet of his generation.

As the Internet continues to expand its reach, more and more users, administrators, and programmers need to learn about TCP/IP--the core standard behind the Internet, and the dominant protocol for networks throughout the world. Sams Teach Yourself TCP/IP in 24 Hours provides a clear and concise introduction to TCP/IP. It is accessible enough for non-technical readers, yet specific enough for technical readers who are looking for a solid foundation in TCP/IP. This edition adds coverage of recent developments that affect TCP/IP. New topics added include: wireless networking, spam control, broadband, and peer-to-peer networking technologies.

Network switches work by connecting network paths together and making intelligent decisions about moving traffic in a network. By keeping track of changes in the network, switches reduce congestion and improve speed.

The Cisco IP Telephony focused certification tracks validate proficiency in designing, installing, and supporting a multiservice network solution. A solid understanding of quality-of-service (QoS) features and implementation is essential for all of the Cisco IP Telephony focused certifications and is also a core component of the CCIP certification.