Load Balancing Servers, Firewalls And Caches

Load Balancing Servers, Firewalls, and Caches Chandra Kopparapu Wiley Computer Publishing John Wiley & Sons, Inc. N EW YOR K • CH ICH ESTER • WEI N H EI M • B R ISBAN E • SI NGAPOR E • TORONTO Load Balancing Servers, Firewalls, and Caches Load Balancing Servers, Firewalls, and Caches Chandra Kopparapu Wiley Computer Publishing John Wiley & Sons, Inc. N EW YOR K • CH ICH ESTER • WEI N H EI M • B R ISBAN E • SI NGAPOR E • TORONTO Publisher: Robert Ipsen Editor: Carol A. Long Developmental Editor: Adaobi Obi Managing Editor: Micheline Frederick Text Design & Composition: Interactive Composition Corporation Designations used by companies to distinguish their products are often claimed as trademarks. In all instances where John Wiley & Sons, Inc., is aware of a claim, the product names appear in initial capital or ALL CAPITAL LETTERS. Readers, however, should contact the appropriate companies for more complete information regarding trademarks and registration. This book is printed on acid-free paper. ∞ Copyright © 2002 by Chandra Kopparapu. All rights reserved. Published by John Wiley & Sons, Inc. Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 750-4744. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 605 Third Avenue, New York, NY 10158-0012, (212) 850-6011, fax (212) 850-6008, E-Mail: [email protected] This publication is designed to provide accurate and authoritative information in regard to the subject matter covered. It is sold with the understanding that the publisher is not engaged in professional services. If professional advice or other expert assistance is required, the services of a competent professional person should be sought. Library of Congress Cataloging-in-Publication Data: Kopparapu, Chandra. Load balancing servers, firewalls, and caches / Chandra Kopparapu. p. cm Includes bibliographical references and index. ISBN 0-471-41550-2 (cloth : alk. paper) 1. Client /server computing. 2. Firewalls (Computer security) I. Title. QA76.9.C55 K67 2001 004.6--dc21 2001046757 Printed in the United States of America. 10 9 8 7 6 5 4 3 2 1