Networking
A Beginners Guide Sixth Edition
About the Author
Bruce Hallberg has 30 years experience in information technology, including executive management, system implementations, and global network consulting for Fortune 1000 companies. He is the author of more than 30 books on a wide variety of computing topics, including operating systems, networking, and both server and desktop applications. He holds an MBA from Heriot Watt University, and resides in the Silicon Valley area of California with his two daughters.
About the Technical Editor
Steve Langford has over 17 years of network administration experience in several industries, such as biotechnology, chemical manufacturing, and venture capital. Currently at a private school, he has been the IT project manager for software upgrades and new building construction.
Networking
A Beginners Guide Sixth Edition
BRUCE HALLBERG
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With all my love, for Bonnie Gordon, and my two daughters, Vivian and Maxine.
At a Glance
Contents
Acknowledgments
I d like to thank Amy Jollymore for putting this project together. An acquisition editors job is rarely an easy one (think herding cats), but Amy was unfailingly pleasant to work with.
Amanda Russell was the editorial coordinator for this book, which means she had the daunting job of ensuring that all of the myriad tasks were tracked and accomplished. Amanda brought to this job an amazing combination of poise and ability.
Sandhya Gola was our project manager, and once the manuscript was written, took charge of managing the overall copyedit process and the production of the book. Id like to thank Sandhya for her competent work on the project; I enjoyed working with her!
Id like to also thank Lisa McCoy, who copyedited the entire book. I really appreciate Lisas deft improvements to the text of the book.
Finally, Steve Langford was the technical editor of the edition of this book. Ive known Steve for many years, originally when we were colleagues and Steve was the network administrator for a fairly complex network. Im grateful to Steve that he was willing to take on this job.
Introduction
I ve run into many people over the years who have gained goodeven impressiveworking knowledge of PCs, operating systems, applications, and common problems and solutions. Many of these people are wizards with desktop computers. Quite a few of them have been unable to make the transition into working with networks, however, and they have had trouble gaining the requisite knowledge to conceptualize, understand, install, administer, and troubleshoot networks. In many cases, this inability limits their career growth because most companies believe networking experience is fundamental to holding higher-level information technology (IT) positions. And, in fact, networking experience is very important.