Practical Guide for Implementing Secure title: Intranets and Extranets Artech House Telecommunications Library author: Phaltankar, Kaustubh M. publisher: Artech House, Inc. isbn10 | asin: 0890064474 print isbn13: 9780890064474 ebook isbn13: 9781580532273 language: English Intranets (Computer networks) , Extranets subject (Computer networks) , Computer networks- -Security measures. publication date: 2000 lcc: TK5105.875P43 2000eb ddc: 005.8 Intranets (Computer networks) , Extranets subject: (Computer networks) , Computer networks- -Security measures. Page i Practical Guide for Implementing Secure Intranets and Extranets Page ii For a listing of recent titles in the Artech House Telecommunications Library, turn to the back of this book. Page iii Practical Guide for Implementing Secure Intranets and Extranets Kaustubh M. Phaltankar Library of Congress Cataloging-in-Publication Data Phaltankar, Kaustubh M. Practical guide for implementing secure intranets and extranets / Kaustubh M. Phaltankar. p. cm. (Artech House telecommunications library) Includes bibliographical references and index. ISBN 0-89006-447-4 (alk. paper) 1. Intranets (Computer networks). 2. Extranets (Computer networks). 3. Computer networksSecurity measures. I. Title. II. Series. TK5105.875.I6 P43 1999 99-045834 005.8 21dc21 CIP British Library Cataloguing in Publication Data Phaltankar, Kaustubh M. Practical guide for implementing secure intranets and extranets. (Artech House telecommunications library) 1. Wide area networks (Computer networks) - Security measures I. Title 005.8 ISBN 0-89006-447-4 Cover design by Lynda Fishbourne ã 2000 ARTECH HOUSE, INC. 685 Canton Street Norwood, MA 02062 All rights reserved. Printed and bound in the United States of America. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the publisher. All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized. Artech House cannot attest to the accuracy of this information. Use of a term in this book should not be regarded as affecting the validity of any trademark or service mark. International Standard Book Number: 0-89006-447-4 Library of Congress Catalog Card Number: 99-045834 Library of Congress Catalog Card Number: 99-045834 10 9 8 7 6 5 4 3 2 1 Page v To Shadong, my loving wife, and to my parents Page vii Contents Foreword xiii Preface xv Intended Audience xvii Book Layout xvii Web Site xviii Acknowledgments xix Conventions xix 1 1 Introduction 1.1 Internet 1 1.2 Intranet 3 1.2.1 Traditional Approach 5 1.2.2 Frame Relay-Based Approach 7 1.2.3 Internet VPN-Based Approach 9 1.3 Intranet Components 11 1.4 Intranet Summary 14 1.5 Extranet 16 1.5.1 Advantages of Extranet 17 1.5.2 Security 19 1.5.3 Examples of Extranet 23 1.6 Conclusion 28
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