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Wiley Pathways Networking Basics

by Ciccarelli, Patrick; Faulkner, Christina; FitzGerald, Jerry, Jerry FitzGerald & Associates; Dennis, Alan, Kelly School of Business, Indiana University; Miller, Frank

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Copyright, iv
About the Authors, v
Preface, vii
1. Networking Fundamentals, 1
Introduction, 2
1.1. Understanding the Need for Networks, 2
1.1.1. Networking Roots, 2
1.1.2. Network Benefits, 4
1.1.3. Network Concerns, 5
1.1.4. The Internet, 5
Self-Check, 7
1.2. Understanding Network Basics, 7
1.2.1. Understanding Networks, 7
1.2.2. Understanding Network Components, 8
1.2.3. Understanding Network Device Roles, 9
1.2.4. Understanding Network Models and Software, 10
1.2.5. Understanding Servers and Clients, 11
Self-Check, 13
1.3. Understanding Data Communications, 13
1.3.1. Low-Level Protocols, 13
1.3.2. High-Level Protocols, 13
Self-Check, 16
1.4. Comparing Types of Networks, 16
1.4.1. Local Area Networks (LANs), 17
1.4.2. Metropolitan Area Networks (MANs), 19
1.4.3. Wide Area Networks (WANs), 21
1.4.4. Internet Technologies, 22
Self-Check, 25
1.5. The Future of Networking, 25
1.5.1. Pervasive Networking, 25
1.5.2. The Integration of Voice, Video, and Data, 26
1.5.3. New Information Services, 27
Self-Check, 28
Summary, 28
Key Terms, 28
Summary Questions, 30
Applying This Chapter, 32
You Try It, 34
2. Network Standards and Models, 35
Introduction, 36
2.1. Understanding the Need for Standards, 36
2.1.1. Understanding the Standards Process, 36
2.1.2. Recognizing Standards Organizations, 38
Self-Check, 40
2.2. Understanding the OSI Model, 40
2.2.1. Understanding How the OSI Model Works, 41
2.2.2. Understanding the OSI Model Layers, 43
Self-Check, 54
2.3. Understanding Other Network Models, 54
2.3.1. The TCP/IP Model, 55
2.3.2. The Internet Model, 56
2.3.3. Groups of Layers, 58
Self-Check, 59
Summary, 59
Key Terms, 60
Summary Questions, 62
Applying This Chapter, 64
You Try It, 65
3. Network Architectures, 66
Introduction, 67
3.1. Understanding Architecture Basics, 67
3.1.1. Architecture Evolution, 67
3.1.2. Common Server Types, 69
3.1.3. Evolving Network Connections, 70
Self-Check, 72
3.2. Evaluating Peer-to-Peer Networking, 72
3.2.1. Understanding Peer-to-Peer Features, 72
3.2.2. Choosing a Peer-to-Peer Network, 73
3.2.3. Securing a Peer-to-Peer Network, 75
3.2.4. Implementing a Peer-to-Peer Network, 76
Self-Check, 79
3.3. Evaluating Client/Server Networking, 79
3.3.1. Understanding Client/Server Networks, 79
3.3.2. Choosing a Client/Server Network, 80
3.3.3. Securing a Client/Server Network, 81
3.3.4. Implementing a Client/Server Network, 83
Self-Check, 86
3.4. Evaluating Directory Services Networking, 86
3.4.1. Understanding Directory Services Networking, 86
3.4.2. Choosing a Directory Services Network, 88
3.4.3. Securing a Directory Services Network, 90
3.4.4. Implementing a Directory Services Network, 92
Self-Check, 94
3.5. Recognizing Hybrid Architectures, 94
3.5.1. Using Hybrid Architectures, 95
3.5.2. Separating Workgroups, 97
Self-Check, 97
Summary, 98
Key Terms, 98
Summary Questions, 99
Applying This Chapter, 101
You Try It, 102
4. Network Topologies, 103
Introduction, 104
4.1. Comparing Physical Network Topologies, 104
4.1.1. Bus Topology, 105
4.1.2. Ring Topology, 109
4.1.3. Star Topology, 112
4.1.4. Mesh Topology, 115
Self-Check, 117
4.2. Comparing Wireless Network Topologies, 117
4.2.1. Ad Hoc Mode, 117
4.2.2. Infrastructure Mode, 118
4.2.3. Wireless Mesh, 120
Self-Check, 121
4.3. Understanding Other Topology Issues, 122
4.3.1. Understanding Logical Topology, 122
4.3.2. Using Wired Hybrid Topologies, 125
4.3.3. Combining Wired and Wireless Topologies, 126
Self-Check, 130
Summary, 130
Key Terms, 131
Summary Questions, 132
Applying This Chapter, 134
You Try It, 136
5. Network Media and Devices, 137
Introduction, 138
5.1. Choosing Network Media, 138
5.1.1. Routing Your Cable Plant, 139
5.1.2. Using Coax, 140
5.1.3. Using STP, 143
5.1.4. Using UTP, 146
5.1.5. Using Fiber-Optic Cable, 149
Self-Check, 153
5.2. Implementing Network Devices, 154
5.2.1. Using NICs, 154
5.2.2. Using Hubs, 155
5.2.3. Using Switches, 157
5.2.4. Using MAUs, 159
5.2.5. Using Repeaters, 161
Self-Check, 164
5.3. Implementing Internetwork Devices, 164
5.3.1. Using Bridges, 165
5.3.2. Using Routers, 167
5.3.3. Using Brouters, 169
5.3.4. Using Gateways, 170
Self-Check, 171
Summary, 171
Key Terms, 171
Summary Questions, 173
Applying This Chapter, 174
You Try It, 177
6. Network Protocols, 178
Introduction, 179
6.1. Understanding the Role of Protocols, 179
6.1.1. Understanding Communication Requirements, 179
6.1.2. Identifying Protocols by Role, 180
6.1.3. Transmitting Digital Data (Digitally), 182
Self-Check, 184
6.2. Comparing Access Methods, 184
6.2.1. 802 Standards, 184
6.2.2. Focusing on LAN Access, 188
Self-Check, 192
6.3. Comparing Network Protocols, 192
6.3.1. Using the TCP/IP Suite, 193
6.3.2. Using IPX/SPX, 197
6.3.3. Using AppleTalk, 199
Self-Check, 202
Summary, 203
Key Terms, 203
Summary Questions, 205
Applying This Chapter, 207
You Try It, 208
7. Transmission Control Protocol/Internet Protocol (TCP/IP), 209
Introduction, 210
7.1. Understanding TCP/IP Fundamentals, 210
7.1.1. TCP/IP Design Goals, 210
7.1.2. Internet Protocol (IP) and Transmission Control Protocol (TCP), 212
Self-Check, 215
7.2. Managing IP Addresses, 215
7.2.1. Breaking Down IP Addresses, 215
7.2.2. Using Subnets, 218
7.2.3. Using Ports and Sockets, 224
7.2.4. Looking Ahead to IPv6, 225
Self-Check, 227
7.3. Implementing Name Resolution, 228
7.3.1. Organizing TCP/IP Host Names, 228
7.3.2. Resolving with HOSTS, 229
7.3.3. Resolving with Domain Name System (DNS), 229
7.3.4. Resolving with Windows Internet Naming Service (WINS), 231
Self-Check, 232
7.4. Supporting TCP/IP, 232
7.4.1. Configuring TCP/IP Parameters, 232
7.4.2. Automating IP Configuration, 235
7.4.3. Recognizing Common Utilities, 241
Self-Check, 243
Summary, 244
Key Terms, 244
Summary Questions, 246
Applying This Chapter, 248
You Try It, 252
8. Wireless, Remote, and Wide Area Networking, 253
Introduction, 254
8.1. Deploying Wireless Networking, 254
8.1.1. Understanding Wireless Fundamentals, 254
8.1.2. Comparing Wi-Fi 802.11 Standards, 257
8.1.3. Configuring Wi-Fi, 260
Self-Check, 266
8.2. Implementing Remote Access, 266
8.2.1. Comparing Access Fundamentals, 266
8.2.2. Comparing Access and Authentication, 269
8.2.3. Configuring Remote Access, 274
Self-Check, 278
8.3. Joining LANs into WANs, 279
8.3.1. Considering WAN Options, 279
8.3.2. Connecting with Circuit-Switched Networks, 281
8.3.3. Connecting with Dedicated Circuit Networks, 283
8.3.4. Connecting with Packet-Switched Networks, 285
8.3.5. Choosing a Connection Type, 288
Self-Check, 290
Summary, 291
Key Terms, 292
Summary Questions, 294
Applying This Chapter, 295
You Try It, 297
9. Network Servers and Services Fundamentals, 298
Introduction, 299
9.1. Considering Basic Service Requirements, 299
9.1.1. Using File and Print Services, 300
9.1.2. Introducing Server Applications, 301
9.1.3. Network Support Services, 302
Self-Check, 303
9.2. Considering Novell NetWare and Open Enterprise, 304
9.2.1. Exploring NetWare Features, 304
9.2.2. NetWare Interoperability Support, 305
9.2.3. NetWare Service Support, 306
Self-Check, 310
9.3. Considering Microsoft Windows, 311
9.3.1. Exploring Windows Features, 311
9.3.2. Windows Interoperability Support, 312
9.3.3. Windows Service Support, 314
Self-Check, 316
9.4. Considering Unix and Linux, 316
9.4.1. Exploring Unix/Linux Features, 317
9.4.2. Unix/Linux Interoperability Support, 318
9.4.3. Unix/Linux Service Support, 318
Self-Check, 320
9.5. Considering Apple Macintosh, 320
9.5.1. Exploring Mac Features, 321
9.5.2. Mac Interoperability Support, 323
9.5.3. Mac Service Support, 324
Self-Check, 325
9.6. Implementing Basic Network Services, 325
9.6.1. Deciding on Network Basics, 326
9.6.2. Thinking About Heterogeneous Networks, 326
9.6.3. Thinking About Traffic Flow, 327
9.6.4. Thinking About Server Placement, 328
9.6.5. Documenting Your Success, 332
Self-Check, 333
Summary, 333
Key Terms, 333
Summary Questions, 336
Applying This Chapter, 337
You Try It, 340
10. Wide Area and Enterprise Networking Services, 341
Introduction, 342
10.1. Looking to the Internet, 342
10.1.1. Introducing Internet Architecture, 342
10.1.2. Understanding Today’s Internet, 344
10.1.3. Connecting WANs Through the Internet, 344
10.1.4. Including Internet Technologies in an Enterprise Network, 350
Self-Check, 351
10.2. Creating a Wide Area Network (WAN), 351
10.2.1. Identifying Your Goals, 352
10.2.2. Using the Traditional Design Process, 352
10.2.3. Using the Building-Block Design Process, 352
Self-Check, 355
10.3. Performing Needs Analysis, 355
10.3.1. Analyzing Geographic Scope, 356
10.3.2. Analyzing Servers and Application Systems, 356
10.3.3. Analyzing User Requirements, 360
10.3.4. Categorizing Network Requirements, 360
10.3.5. Compiling Your Deliverables, 363
Self-Check, 363
10.4. Developing a Technology Design, 363
10.4.1. Designing Clients and Servers, 363
10.4.2. Designing Circuits and Pathways, 364
10.4.3. Selecting Design Tools, 365
10.4.4. Compiling Your Deliverables (Again), 365
Self-Check, 367
10.5. Selling Your Plan, 368
10.5.1. Estimating Costs, 368
10.5.2. Developing a Request for Proposal (RFP), 368
10.5.3. Selling It to Management, 370
10.5.4. Compiling Your Deliverables (One More Time), 371
Self-Check, 371
10.6. Deploying Your WAN, 371
10.6.1. Deploying Your LANs, 372
10.6.2. Connecting Your LANs, 372
10.6.3. Remaining (Ongoing) Tasks, 374
Self-Check, 375
Summary, 376
Key Terms, 376
Summary Questions, 378
Applying This Chapter, 379
You Try It, 384
11. Network Management, 385
Introduction, 386
11.1. Recognizing Network Management Requirements, 386
11.1.1. Identifying Management Requirements, 386
11.1.2. Justifying Network Administration, 387
11.1.3. Considering Network Management Strategies, 388
Self-Check, 392
11.2. Managing Reliability, 392
11.2.1. Managing Backups, 393
11.2.2. Managing Redundancy, 396
Self-Check, 400
11.3. Controlling Configuration Management, 400
11.3.1. Understanding User Management, 400
11.3.2. Understanding Software Management, 401
Self-Check, 403
11.4. Monitoring Your Network, 403
11.4.1. Establishing a Baseline, 404
11.4.2. Analyzing Network Performance, 404
11.4.3. Monitoring Network Computers, 407
Self-Check, 410
11.5. Using Management Systems, 410
11.5.1. Managing TCP/IP Networks, 411
11.5.2. Remotely Monitoring a Network, 414
11.5.3. Using Common Management Information Protocol, 414
11.5.4. Implementing Network Management Systems, 414
Self-Check, 416
11.6. Managing Individual Servers, 416
11.6.1. Understanding Local Management, 416
11.6.2. Understanding Remote Management, 418
Self-Check, 420
Summary, 420
Key Terms, 421
Summary Questions, 423
Applying This Chapter, 424
You Try It, 426
12. Network Security, 428
Introduction, 429
12.1. Understanding the Need for Security, 429
12.1.1. Understanding the Problem, 430
12.1.2. Recognizing the Problem, 431
12.1.3. Assessing Security Risks, 433
12.1.4. Identifying and Minimizing Exposure, 436
Self-Check, 437
12.2. Implementing User Access Security, 438
12.2.1. Managing User Accounts, 438
12.2.2. Managing Passwords, 439
12.2.3. Managing Access Security and User Rights, 444
Self-Check, 446
12.3. Configuring Network Security, 447
12.3.1. Identifying Network Attacks, 448
12.3.2. Adding Firewalls, 450
12.3.3. Adding Encryption, 452
12.3.4. Implementing Wireless Security, 456
12.3.5. Using Auditing and Logs, 460
Self-Check, 464
12.4. Configuring Computer Security, 464
12.4.1. Understanding Malicious Software, 464
12.4.2. Protecting Network Computers, 465
Self-Check, 468
Summary, 468
Key Terms, 469
Summary Questions, 471
Applying This Chapter, 473
You Try It, 475
Glossary, 476
Index, 513

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