CourseSmart - 9780470111291 - Wiley Pathways Networking Basics

Wiley Pathways Networking Basics

by Ciccarelli, Patrick; Faulkner, Christina; FitzGerald; Dennis; Miller, Frank

Publisher: John Wiley & Sons

Publishing Date: 2007/08/24

eText ISBN-10

0-470-28255-X

eText ISBN-13

978-0-470-28255-7

Print ISBN-10

0-470-11129-1

Print ISBN-13

978-0-470-11129-1

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Wiley Pathways Networking Basics

by Ciccarelli, Patrick; Faulkner, Christina; FitzGerald; Dennis; Miller, Frank

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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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