Table Of Content

This Page Intentionally Left Blank Originally published in Norwegian under the title 'Drift av lokalnettverk; Design og sikkerhet' by 'Tapir Akademisk Forlag' (1997). Copyright 0 2002 by John Wiley & Sons Ltd, Baffins Lane, Chichester, West Sussex PO19 IUD, England National 01243 779117 International (+U) 1243 779777 e-mail (for orders and customer service enquiries): [email protected] Visit our Home Page on http://www,wileyeurope.com All Rights Reserved. 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 under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, UK WIP OLP, without the permission in writing of the Publisher with the exception of any matenal supplied specifically for the purpose of being entered and executed on a computer system for exclusive use by the purchaser of the publication. Neither the authors nor John Wiley & Sons, Ltd accept any responsibility or liability for foss or damage occasioned to any person or property through using the matenal, instructions, methods or ideas contained herein, or acting or refraining from acting as a result of such use. The authors and publisher expressly disclaim all implied warranties, including merchantability or fitness for any particular purpose. There will be no duty on the authors or publisher to correct any errors or defects in the software. Designations used by companies to distinguish their products are often claimed as trademarks. In a11 instances where John Wiley & Sons, Ltd is aware of a clam, the product names appear in capital or all capital letters. Readers, however, should contact the appropriate companies for more complete information regarding trademarks and registration. Arne Mikalsen and Per Borgesen have asserted their right under the Copyright, Designs and Patents Act 1988 to be identified as the authors of this work. Other Wiley Editorial Ofices John Wiley & Sons, Inc., 605 Third Avenue, New York, NY 10158-0012, USA Wiley-VCH Verlag GmbH, PappelaIlee 3, D-69469 Weinheim, Germany John Wiley & Sons Australia, Ltd, 33 Park Road, Milton, Queensland 4064, Australia John Wiley & Sons (Asia) Pte Ltd, 2 Clementi Loop #02-01, Jin Xing Distripark, Singapore I29809 John Wiley 6t Sons (Canada) Ltd, 22 Worcester Road, Rexdale, Ontano M9W 1L1, Canada Iibrayy of Congress Cataloging-in-PublicationD ata (appliedf or) B&h mrary Cataloguing in Pitblication Data A catalogue record for this book is available from the Bntish Library ISBN 0 471 49769 X Typeset in Great Britiun by Cybertechnics, Sheffield Printed and bound in Great Britain By Biddles Ltd., Guildford and Kings Lynn This hook is printed on acid-free paper responsibly manufactured from sustamable forestry, for which at least two trees axe planted for each one used for paper production. ............................................................................................................. FACE ......................................................................................................................................................... OBJECTIVES XIIT ................................................................................................................................. STRUCTURE OFTHE BOOK xlv TARGEmT ADERS ................................................................................................................................................ XIV ................................................................................................................................. LONG DISTANCE LEARNING XV THANKS. .................................................................................................................................................................. xv .................................................................................. CHAPTER P -INTRODUCTION 1 ......................................................................................................................................................... ~RMINOLOGY 2 ................................................................................................................................................................... HISTORY 3 ..................................................................... ~ a ~ n ~ ~ / ~ i n aindc noetw~oruks.t, ~ s 3 ....................................................................... Microcomputers and local area networks 4 .................................................................... Local area networks. Ethernet and hternet 4 .................................................................................................... CLASSIFICAITON OF LOWA REA NETWORKS 5 ............................................................................................... Local area network 5 ................................................................................... Metropolitan area nehoork 5 Wide are network (Wq.. .............................................................................................. 5 ................................................................................................... WANs and the Internet 6 ........................................................................................................................ Intrawts 6 ............................................................................................................................ WI-IYLOCALAREA~ORKS? 7 ........................................................................................................... Resource sharing 7 .................................................................................... Communicationa nd cooperation 7 ......................................................................................................................... Security 8 ............................................................................................................................. costs 8 .............................................................................................. “HE LIFE CYCLE OFTHE LOCAL AREA NETWORK 8 ........................................................................................................................ Analysis 9 ......................................................................................................................... Design 10 ............................................................................................................ Implementation 10 ..................................................................................... Integration and system testing 11 ......................................................................................... Operation and maintenance 11 ................................................................................................................... Concltrston 11 . ....................... C CO CATION IN LOCAL AREA NETWO 13 ......................................................................................................................... MODELS FOR COMMUNICATION 14 ........................................................................................................... A lugered model 17 .................................................................................................. Communication tasks 18 .............................................................................................................................. OSI 22 ......................................................................................................................... TCP/IP 28 ................................................................................................................... Conclusion 4. Contents ........................................................................................................................... MEDIAA ND F"CAL LAYERS 34 .......................................................................................................................... Media 34 ............................................................................................................................................................. TommGY 37 ....................................................................................... Point-tc-pointo r star topology 37 ..................................................................................................... Bus or tree topology 38 ............................................................................................................... Ring topology 39 ...................................................................................................... Hubs and switches 39 ...................................................................................................... THE TELEPHONE NETWORK AND MODEMS 40 DJE - DCE ................................................................................................................... 41 ..................................................................................................... ryPes of connection 41 .................................................................................................................... Capacities 42 ..................................................................................................... Fields of application 42 ................................................................................................... How a modem works 42 ..................................................................................... Serial interfacea nd standards 44 ................................................................................................................. Flow control 45 ............................................................................................................ orc correction 46 ................................................................................................................ Compression 47 ............................................................................................................... Command set 47 .................................................................................................................. Null modem 47 ............................................................................................................................ ISDN 48 ........................................................................................................................... RIlSL 50 ........................................................................................................................... uM?Is 51 ............................................................................................................................................... ACCESS METHODS 51 ...................................................................................................... ContestiCS~CD~ 51 .............................................................................................................. 'Ibkenpassing 53 ................................................................................................................. LOCAL AREA "WORK STANDMUIS 53 - ......................................................................... EEE 802.2 UC LogicalLink Control 55 ................................................................... IEEE 802.xMAC -MediumAccess Control 55 ........................................................................ FDDI- Fiber DistibutedDataInterf~e 61 ............................................................................................................................. ATM 63 ........................................................................................................................................................ IP ~~luro~~is 65 ............................................................................................................... The protocols 68 IP addresses ................................................................................................................ 69 IP datagramformat ...................................................................................................... 72 ................................................................ Assigning IP numbers in local area nehuork s 75 IP routing ..................................................................................................................... 76 TRANSPORT LAYER IN THE Tcp/IP .s ........................................................................................................ 82 - ............................................................................ XI2 TransmissionC ontrol Protocol 86 .................................................................................................... Xpprotocol details -90 ...................................................................................... W P- user datagramP rotocol 95 ................................................................................................................. APPLICATION IN %P/Ip ITEXWORKS 97 s mS imple mail nansfer Protocol ............................................................................ 97 - .............................................................................. Hi7F Hyprtext protocol 99 DNS - Domain Name System.. .................................................................................... 100 ............................................................................................................................. ENCH~~A~NDO SNEC UFUlY 103 .............................................................................. Traditional encyption algorithms 104 ............................................................................................. ENCRYrmoN WITH PUBLIC AND PRIVATE KEYS 106 ........................................................................................................... PI=Pencyption 107 Contents vii P ....................................... CmmER 3 -HARDWARE INA LOCALARBA NETwORIz 111 ............................................................................................................................................................. SERVE= 1. 12 ........................................................................................................ File applications 113 .......................................................................................................................... SCSI 115 ................................................................................................................. Harddisks 121 ........................................................................................................................ Buses 124 ........................................................................................................... Memo y IRAM) 128 ............................................................................................................ Motherboards 132 ................................................................................................................... &messor 134 ...................................................................................................................... Chipset 138 .......................................................................................................................... Case 139 ................................................................................................................. HARDWARE FOR BACKUP COPYING 141 ............................................................................................................ bfagnetict ape 142 ............................................................................................................... Other media 143 Nmom INTERFACE CARDS. ......................................................................................................................... 143 ............................................................................................................... Introduction 143 ................................................................................................................. Arhitecture 144 ....................................................... Exumples of network card setup and installation 148 .................................................................................................................................................. WOKKSTA71ONS 150 ................................................................................................ Homogenus networks 150 ................................................................................................ Diskless workstations 150 .............................................................................................................. Otherf adors 151 ................................................................................................................................................................ CAElLES 151 .................................................................................................... Twisted-pairc ables 152 ........................................................................................................... Coaxial cables 155 ..................................................................................................... Wireless networks 158 ...................................................................................................................................................... CONCLUSION 158 .......................................................................................................................................................... ~~RCISES 159 ............................................. CHAPTER 4 -DESIGNING LOCAL AREA NETWORKS 161 ................................................................................................................................................... INTRODUCTION 162 ........................................................................................................................................................... TOPOLOGY 162 ............................................................................................................................ Bus 165 ........................................................................................................................... Ring 165 ........................................................................................................................... Star 167 ................................................................................................................................... SEGMENTS (E’lYHEFtNET) 168 ......................................................................................... WmONALI NTERCONNECTION COMPONENTS 169 .................................................................................................................. .Repeaters 169 ....................................................................... The 5-43 rule for connecting segments 170 ...................................................................................................................... Bridses 170 ...................................................................................................................... Routers 173 ...................................................................................................................................... SWITCH TECHNOLOGY 175 .................................................................................................... Mode of operations 177 ........................................................................................................... Qpeo f switch 178 ....................................................................... Port switching and segment switching 180 ........................................................................................................ Combined speed 181 ..................................................................................................... Structured cabling 182 ............................................................................................ Cabling and patch panel 183 .......................................................................................................................... Hubs 185 viii Contents ....................................................................................................................................... WIRELESS" WORKS 187 ............................................................................................ Speed Spe&im transfer 188 ........................................................................................................ InJi-ared kansfw 188 w ........................................................................................................................ 189 ............................................................................................. R o qb etween VL4Ns 193 ................................................................................................................ PAPERWOARNKD DOCUMENTATION 194 ........................................................................................................... Two strategies 195 ............................................................................................... Negotiation of contract 196 .......................................................................................... Support and maintenance 197 ....................................................................................... Level of support agreements 198 ...................................................................................................................................................... INSTALLATION 199 ........................................................................................................... Documentation 199 ................................................................................................... Planning of location . 199 ................................................................................................... B~~iZdinregg ulations 202 ............................................................................................................................................................. SUMMARY 202 .......................................................................................................................................................... EXERCISES 203 ................................. AREA NETWQRK OPERATING SYSTEM 205 .................................................................................................................................................... INTRODUCTON 205 .................................................................................................................................. PEER-TO-PEENRE TWORK 207 .................................................................................................................... FUNCTIONS AND RESPONSIBILITY 208 ......................................................................................................... I/O optimtsation 208 ........................................................................................................... Fault tolerance 212 ......................................................................... Multiple processing and time sharing 220 ................................................................................................................................................... PRINT SPOOLER 222 ..................................................................................... Logical andp hysical printing 222 .............................................................................. "The running" of networkprinffng 223 .................................................................................................... CURRENT NETWORK OPERATING SYSTEMS 223 ........................................................................................................... Banyan YA?ES 224 ................................................................................................................... LANtastlc 224 ...................................................................................................... OS/Z Warp Server 225 ............................................................................................................................................................. SUMMARY 225 .......................................................................................................................................................... E~ERCISES 227 - .......................................................... CHAPTER 6 MANAGEMENT AND SEC 229 .................................................................................................................................................... INTRODUCTION 229 ........................................................................................................................... DECIDINGSE CURE" LEVELS 230 ................................................................................................................................... PRINTING ENVIRONMENT 232 ................................................................................................. Printing opportunities 232 .............................................................................................................. Printer driver 239 ....................................................................................................... A society of users 239 ....................................................................................................................... Groups 241 .................... ......... .._.... ................................................................... physican secu tity 243 .......................................................................................................... ~ i c aselcu rity 245 ................................................................................................................................................................ BACKUP 248 ................................................................................................... The needf or backup 248 ...................................................................................... What are the consequences? 249 ............................................................................................ Static and dynamic data 250 .......................................................................... Fulyincrementayd~~erentibaal ckup 250 Contents ix .......................................................................................................... Backup routine 251 .................................................................................................................... Rmovery 255 .......................................................................................................................................................... FIREWALLS 256 ......................................................................................................................................... DISASTERPL ANNING 257 s u ~......y......... ............................................................................................................................................. 257 .......................................................................................................................................................... EXERCE~ES 259 - ............................................................................ CHAPTER 7 NOVEJA 281 ............................................................................................................................................................ VERSIONS 261 .................................................................................................................... N&Ware 262 .................................................................................................................. N&Ware 4 262 ............................................................................................................. Intrawtware 264 .................................................................................................................. N&Ware 5 265 ................................................................................................................. Groupwise 268 .............................................................................................................. Managewise 269 NDS - NOvEIlc DIRECToRY SERVICE...S... ................................................................................................... 269 ............................................................................................................. what is NDS7 270 ...................................................................................................... Object orientation . 271 ............................................................................................................... Object types 273 ............................................................................................................... Leaf objects 274 ........................................................................................................................................ NOVELFLIL E SY'~TEM 275 .................................................................................................. Volumes andf olders 275 ........................................................................................................................... SYSTEFMAU LT TOLERANCE., 276 ................................................................................................................. SFTLevel I 276 ................................................................................................................ SFTkuel 11 277 ................................................................................................................ SFT level Ill 278 The order of login script ............................................................................................. 280 ......................................................................................................................... NOVELLN EXwm SECURITY 281 ............................................................................................................ Login security 281 .................................................................................................................... Tntstees 284 ................................................................................................... Novel1 NDS security 293 .......................................................................................... PRINTING ENVIRONMENT IN NOVELLN flTwAFU3 298 ............................................................................. Queuebased printing environment 298 NDPS - Nouell Distributed Print Services .................................................................... 302 ................................................................. Managing/rnuintenunceo f printing (NDl?S) 304 ............................................................................................................................................................ SUMMARY 306 .......................................................................................................................................................... EXERCISES 307 .............................................................................. G 309 ................................................................................................................................................... INTR~DUCTION 309 .......................................................................................................................................... HISTOW/VERSIONS 310 ................................................................................................................... Windows 310 ......................................................................................................... W W w s9 5/98 311 ................................................................................. Windows Me (Milleniurn edition) 312 Windows NT .............................................................................................................. 313 ........................................................................................................... Windows 2000 314 .................................................................................................................... WINDOWS2 000 PROFESSIONAL 315 ............................................................................................. Hardware rquirements 316 ........................................................................... A ~ i f f ~us~er ~on oworrk station s 317 ........................................................................................................................... PASSWORD ADMINlS'MWflON 317 ................................................................................................................................. WINDOWS 2000 SERVER 3 1.7

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Most workplaces rely on local area networks (LANs) to connect their computers and the right LAN is increasingly important in promoting effective communication both within the organisation and with the world at large. Local Area Network Management, Design and Security is a practical and thorough intr

Local Area Network Management, Design & Security PDF

461 Pages·2002·130.35 MB·English

by Arne Mikalsen

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