Networking For Dummies 9th Edition Book – Doug Lowe

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Table Of Contents 9

Introduction 21

About This Boo21

How to Use This Book 22

What You Don’t Need to Read 23

Foolish Assumptions 23

How This Book Is Organize23

Part I: Let’s Network! 24

Part II: Building Your Own Networ24

Part III: Getting Connecte24

Part IV: Network Management For Dummies 24

Part V: Protecting Your Network 25

Part VI: Beyond Windows 25

Part VII: The Part of Ten25

Icons Used in This Book 25

Where to Go from Here 26

Part I: Let’s Network! 27

Chapter 1: Networks Will Not Take Over the World29

What Is a Network?30

Why Bother with a Network? .32

Sharing files32

Sharing resources32

Sharing programs33

Servers and Clients34

Dedicated Servers and Peers 35

What Makes a Network Tick? 36

It’s Not a Personal Computer Anymore! 37

The Network Administrator 39

What Have They Got That You Don’t Got? 39

Chapter 2: Life on the Network 41

Distinguishing between Local Resources and Network Resource41

What’s in a Name? 42

Logging On to the Networ44

Understanding Shared Folder46

Four Good Uses for a Shared Folder 46

Store files that everybody needs 47

Store your own files 47

Make a pit stop for files on their way to other user48

Back up your local hard driv48

Oh, the Network Places You’ll Go 49

Mapping Network Drive51

Using a Network Printe54

Adding a network printe55

Printing to a network print57

Playing with the print queu57

Logging Off the Network 59

Chapter 3: More Ways to Use Your Network 61

Sharing Your Stuf61

Enabling File and Printer Sharing (Windows XP62

Enabling File and Printer Sharing (Windows Vista63

Enabling File and Printer Sharing (Windows 7) 65

Sharing a Folder 66

Sharing a folder in Windows XP 66

Sharing a folder in Windows Vista or Windows 68

Using the Public Folder in Windows Vista and Windows 69

Sharing a Printe70

Sharing a printer in Windows XP 71

Sharing a printer in Windows Vista or Windows 72

Using Microsoft Office on a Networ73

Installing Office on a network — some options 74

Accessing network files 74

Using workgroup templates 75

Networking an Access databas77

Working with Offline Files 78

Part II: Building Your Own Networ81

Chapter 4: Planning Your Network . 83

Making a Network Plan 83

Being Purposefu84

Taking Stock 85

What you need to kno85

Programs that gather information for you 88

To Dedicate, or Not to Dedicate: That Is the Question 89

Looking at Different Types of Servers 89

File serve89

Print servers 90

Web server90

Mail server90

Database serve91

Choosing a Server Operating Syste91

Planning the Infrastructur91

Drawing Diagrams 92

Sample Network Plan93

Building a small network: California Sport Surface, Inc. 93

Connecting two networks: Creative Course Development, I95

Improving network performance: DCH Accountin97

Chapter 5: Oh, What a Tangled Web We Wea99

Cables, Adapters, and Other Stuff .99

What Is Ethernet99

All about Cable 102

Cable categories 103

What’s with the pairs? 104

To shield or not to shield 104

When to use plenum cable 105

Sometimes solid, sometimes stranded 105

Installation guidelines 106

The tools you nee107

Pinouts for twisted-pair cable108

RJ-45 connector109

Crossover cabl111

Wall jacks and patch panels 111

Hubs and Switche113

Hubs or switches113

Working with switche114

Daisy-chaining switche114

Network Interface Cards 116

Picking a network interface card 117

Installing a network car117

Other Network Devices 119




Chapter 6: Dealing with TCP/IP 125

Understanding Binary 125

Counting by ones 126

Doing the logic thing 127

Introducing IP Addresses 128

Networks and hosts 128

The dotted-decimal danc128

Classifying IP Addresses 129

Class A addresse130

Class B addresse131

Class C addresse131

Subnetting 132


Subnet mas134

The great subnet roundu135

Private and public addresses 136

Understanding Network Address Translation 136

Configuring Your Network for DHCP 137

Understanding DHCP 137

DHCP server138

Understanding scopes 139

Feeling excluded? 140

Reservations suggeste140

How long to lease? 141

Managing a Windows Server 2008 DHCP Serve142

Configuring a Windows DHCP Client 144

Using DNS 145

Domains and domain name145

Fully qualified domain name147

Working with the Windows DNS Serve148

Configuring a Windows DNS Client 149

Chapter 7: Setting Up a Server 151

Network Operating System Feature151

Network suppor152

File-sharing service152


Directory service153

Security service154

Understanding Windows Server 2008 Versions 155

Other Server Operating Systems 156


Apple Mac OS X Serv157

The Many Ways to Install a Network Operating Syste157

Full installation versus upgrade 157

Installation over the network 158

Automated and remote installations 159

Gathering Your Stuf160

A capable server compute160

The server operating system 161

Other software 161

A working Internet connectio162

A good boo162

Making Informed Decision162

Making Final Preparation163

Installing Windows Server 2008 164

Life after Setup 166

Logging o166

Activating Windows 166

Downloading service pack166

Testing the installation 167

Configuring Server Role167

Chapter 8: Configuring Windows XP, Vista, and 7 Clients 171

Configuring Network Connection171

Configuring Windows XP network connections 172

network connections 176

Configuring Client Computer Identification 178

Configuring Windows XP computer identificatio179

computer identification 180

Configuring Network Logon 182

Chapter 9: Wireless Networking 185

Diving into Wireless Networking 185

A Little High School Electronic186

Waves and frequencies 187

Wavelength and antennas 187

Spectrums and the FCC 189

(Or, Understanding Wireless Standards190

Home on the Range 191

Wireless Network Adapter192

Wireless Access Points 193

Infrastructure mod194

Multifunction WAPs 195


Wireless bridging 196

Ad hoc network196

Configuring a Wireless Access Point 196

Basic configuration option197

DHCP configuration 199

Configuring Windows XP for Wireless Networking 199

Windows Vista or Windows 7 201

Part III: Getting Connected 203

Chapter 10: Connecting Your Network to the Internet . 205

Connecting to the Internet 205

Connecting with cable or DS206

Connecting with high-speed private lines: T1 and T3 207

Sharing an Internet connectio207

Securing Your Connection with a Firewall 208

Using a firewall 208

The built-in Windows firewal210

Chapter 11: Managing E-Mail with Exchange 2007 213

Managing Mailboxe213

The Exchange General ta214

The E-mail Addresses tab 215

The Exchange Features ta215

The Exchange Advanced ta216

Configuring Outlook for Exchang217

Viewing Another Mailbox 219

Chapter 12: Creating an Intranet 223

What Is an Intranet223

What Do You Use an Intranet For224

What You Need to Set Up an Intranet 225

How to Set Up an IIS Web Server 225

How to Create a Simple Intranet Pag230

Creating Web Site232

Chapter 13: Is It a Phone or a Computer? (Or, Understanding VoIP and Convergence) 237

Understanding VoI237

Advantages of VoIP 239

Disadvantages of VoI240

Popular VoIP Provider240

Chapter 14: Dealing with Mobile Devices 241

The Many Types of Mobile Device241

Configuring Exchange for iPhone and Windows Mobile Device243

Configuring BlackBerry Device245

Considering Security for Mobile Devices 246

Chapter 15: Connecting from Home 249

Using Outlook Web Access 249

Using a Virtual Private Networ251

Part IV: Network Management For Dummie253

Chapter 16: Welcome to Network Management255

What a Network Administrator Doe255

and Providing the Right Resources 257

Documenting the Networ258

Performing Routine Chore259

Managing Network User260

Acquiring Software Tools for Network Administrator261

Building a Librar263

Pursuing Certification 264

Chapter 17: Managing Windows User Accounts 265

Understanding Windows User Account265

Local accounts versus domain account265

User account properties 266

Creating a New Use266

Setting User Properties 269

Changing the user’s contact information 270

Setting account option270

Setting the user’s profile information 272

Resetting User Password273

Disabling and Enabling User Accounts 274

Deleting a User 274

Working with Group275

Creating a grou275

Adding a member to a grou276

Creating a Logon Scrip278

Chapter 18: Managing Network Storage . 279

Understanding Network Storage 279

File serve279

Storage appliances 280

Understanding Permissions 280

Understanding Shares 282

Configuring the File Server Rol283

Managing Your File Server 284

Using the Provision a Shared Folder Wizar285

Sharing a folder without the wizar291

Granting permission293

Chapter 19: Network Performance Anxiety 297

Why Administrators Hate Performance Problem297

What Exactly Is a Bottleneck298

The Five Most Common Network Bottleneck300

The hardware inside your server300

The server’s configuration options 300

Servers that do too much 301

The network infrastructur302

Malfunctioning components 302

Tune Your Network the Compulsive Wa303

Monitor Network Performanc304

More Performance Tip306

Chapter 20: Solving Network Problems 307

When Bad Things Happen to Good Computers 308

How to Fix Dead Computers 309

Ways to Check a Network Connectio310

A Bunch of Error Messages Just Flew By! 311

Double-Check Your Network Settings 312

Time to Experiment 312

Who’s on Firs313

How to Restart a Client Compute313

How to Restart Network Service315

How to Restart a Network Serve317

Looking at Event Logs 318

Document Your Trials and Tribulations 319

Chapter 21: How to Stay on Top of Your Net321

Train Your Users 321

Organize a Library 322

Keep Up with the Computer Industry 323

Remember That the Guru Needs a Gur324

Spew Helpful Bluffs and Excuses 324

Part V: Protecting Your Networ327

Chapter 22: Backing Up Your Data 329

Backing Up Your Data 329

All about Tapes and Tape Drive330

Backup Softwar331

Types of Backup332

Normal backups 333

Copy backups 334

Daily backups 334

Incremental backups 334

Differential backups 335

Local versus Network Backup336

How Many Sets of Backups Should You Keep337

A Word about Tape Reliability 338

About Cleaning the Head339

Backup Security 340

Chapter 23: Securing Your Network . 341

Do You Need Security? 342

Two Approaches to Securit343

Physical Security: Locking Your Door344

Securing User Account345

Obfuscating your usernames 345

Using passwords wisel346

Generating passwords For Dummie347

Secure the Administrator accoun348

Managing User Securit349

User accounts 349

Built-in account350

User right351

Permissions (who gets what) 352

Group therap352

User profiles 354

Logon script354

Securing Your User355

Chapter 24: Hardening Your Network 357


The Many Types of Firewalls 359

Packet filtering 359

Stateful packet inspection (SPI) 361

Circuit-level gateway 361

Application gatewa362

The Built-In Windows Firewall 362

Virus Protection 363

What is a virus363

Antivirus program364

Safe computing 365

Patching Things Up 366

Part VI: Beyond Windows 369

Chapter 25: Networking with Linux . 371

Comparing Linux with Window371

Choosing a Linux Distribution 374

Installing Linux 375

On Again, Off Again 376

Logging on (or is that in?) 376

Logging of378

Shutting dow378

Using GNOME 378

Getting to a Command Shell 380

Managing User Account380

Network Configuratio382

Using the Network Configuration Progra382

Restarting your network 383

Doing the Samba Danc385

Understanding Samba 385

Installing Samba 386

Starting and stopping Samba 387

Using the Samba Server Configuration to388

Chapter 26: Macintosh Networking . 391

What You Need to Know to Hook Up a Macintosh Networ391

Mac networking protocol391

Mac OS X Server 392

What You Need to Know to Use a Macintosh Networ392

Configuring a Mac for networking 393

Accessing a network printe394

Sharing files with other users 394

Accessing shared files 395

What You Need to Know to Network Macintoshes with PCs 395

Part VII: The Part of Tens 397

Chapter 27: More Than Ten Big Network Mistakes . 399

Skimping on Cable 400

While Users Are Logged O400

Deleting Important Files on the Server 401

and Then Copying It Back 402

Print the First Tim402

Assuming That the Server Is Safely Backed Up 402

Connecting to the Internet without Considering Security Issues 403

Plugging In a Wireless Access Point without Askin403

Thinking You Can’t Work Just Because the Network Is Dow404

Running Out of Space on a Server 404

Always Blaming the Network 405

Chapter 28: Ten Networking Commandments . 407

I. Thou Shalt Back Up Thy Hard Drive Religiousl407

II. Thou Shalt Protect Thy Network from Infidel408

and Cleanse It of Old File408

Configuration Unless Thou Knowest What Thou Art Doing 408

V. Thou Shalt Not Covet Thy Neighbor’s Networ409

before Working upon Thy Network 409

VII. Thou Shalt Keep an Adequate Supply of Spare Part409

without a License 410

IX. Thou Shalt Train Thy Users in the Ways of the Network 410

upon Tablets of Stone 410

Chapter 29: Ten Things You Should Keep in Your Closet 411

Duct Tape 411


Patch Cables 412

Cable Ties 412


Extra Network Cards 413

Cheap Network Switche413

The Complete Documentation of the Network on Tablets of Stone 413

The Network Manuals and Disks 414

Ten Copies of This Book 414

Chapter 30: Layers of the OSI Model .415

Layer 1: The Physical Layer 416

Layer 2: The Data Link Layer 416

Layer 3: The Network Layer 418

Layer 4: The Transport Laye418

Layer 4a: The Lemon-Pudding Layer 419

Layer 5: The Session Layer 419

Layer 6: The Presentation Laye419

Layer 7: The Application Laye420