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The Practice of System and Network Administration Volume 1
DevOps and other Best Practices for Enterprise IT
Taschenbuch von Thomas A. Limoncelli (u. a.)
Sprache: Englisch

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Beschreibung

With 28 new chapters, the third edition of The Practice of System and Network Administration innovates yet again! Revised with thousands of updates and clarifications based on reader feedback, this new edition also incorporates DevOps strategies even for non-DevOps environments.

Whether you use Linux, Unix, or Windows, this new edition describes the essential practices previously handed down only from mentor to protégé. This wonderfully lucid, often funny cornucopia of information introduces beginners to advanced frameworks valuable for their entire career, yet is structured to help even experts through difficult projects.

With 28 new chapters, the third edition of The Practice of System and Network Administration innovates yet again! Revised with thousands of updates and clarifications based on reader feedback, this new edition also incorporates DevOps strategies even for non-DevOps environments.

Whether you use Linux, Unix, or Windows, this new edition describes the essential practices previously handed down only from mentor to protégé. This wonderfully lucid, often funny cornucopia of information introduces beginners to advanced frameworks valuable for their entire career, yet is structured to help even experts through difficult projects.

Über den Autor

Thomas A. Limoncelli is an internationally recognized author, speaker, and system administrator with more than twenty years of experience at companies like Google, Bell Labs, and [...].

Christina J. Hogan has more than twenty years of experience in system administration and network engineering, from Silicon Valley to Italy and Switzerland. She has a master’s degree in computer science, a doctorate in aeronautical engineering, and has been part of a Formula 1 racing team.

Strata R. Chalup has more than twenty-five years of experience in Silicon Valley, focusing on IT strategy, best-practices, and scalable infrastructures at firms that include Apple, Sun, Cisco, McAfee, and Palm.

Inhaltsverzeichnis

Preface xxxix

Acknowledgments xlvii

About the Authors li

Part I: Game-Changing Strategies 1

Chapter 1: Climbing Out of the Hole 3

1.1 Organizing WIP 5

1.2 Eliminating Time Sinkholes 12

1.3 DevOps 16

1.4 DevOps Without Devs 16

1.5 Bottlenecks 18

1.6 Getting Started 20

1.7 Summary 21

Exercises 22

Chapter 2: The Small Batches Principle 23

2.1 The Carpenter Analogy 23

2.2 Fixing Hell Month 24

2.3 Improving Emergency Failovers 26

2.4 Launching Early and Often 29

2.5 Summary 34

Exercises 34

Chapter 3: Pets and Cattle 37

3.1 The Pets and Cattle Analogy 37

3.2 Scaling 39

3.3 Desktops as Cattle 40

3.4 Server Hardware as Cattle 41

3.5 Pets Store State 43

3.6 Isolating State 44

3.7 Generic Processes 47

3.8 Moving Variations to the End 51

3.9 Automation 53

3.10 Summary 53

Exercises 54

Chapter 4: Infrastructure as Code 55

4.1 Programmable Infrastructure 56

4.2 Tracking Changes 57

4.3 Benefits of Infrastructure as Code 59

4.4 Principles of Infrastructure as Code 62

4.5 Configuration Management Tools 63

4.6 Example Infrastructure as Code Systems 67

4.7 Bringing Infrastructure as Code to Your Organization 71

4.8 Infrastructure as Code for Enhanced Collaboration 72

4.9 Downsides to Infrastructure as Code 73

4.10 Automation Myths 74

4.11 Summary 75

Exercises 76

Part II: Workstation Fleet Management 77

Chapter 5: Workstation Architecture 79

5.1 Fungibility 80

5.2 Hardware 82

5.3 Operating System 82

5.4 Network Configuration 84

5.5 Accounts and Authorization 86

5.6 Data Storage 89

5.7 OS Updates 93

5.8 Security 94

5.9 Logging 97

5.10 Summary 98

Exercises 99

Chapter 6: Workstation Hardware Strategies 101

6.1 Physical Workstations 101

6.2 Virtual Desktop Infrastructure 105

6.3 Bring Your Own Device 110

6.4 Summary 113

Exercises 114

Chapter 7: Workstation Software Life Cycle 117

7.1 Life of a Machine 117

7.2 OS Installation 120

7.3 OS Configuration 120

7.4 Updating the System Software and Applications 123

7.5 Rolling Out Changes . . . Carefully 128

7.6 Disposal 130

7.7 Summary 134

Exercises 135

Chapter 8: OS Installation Strategies 137

8.1 Consistency Is More Important Than Perfection 138

8.2 Installation Strategies 142

8.3 Test-Driven Configuration Development 147

8.4 Automating in Steps 148

8.5 When Not to Automate 152

8.6 Vendor Support of OS Installation 152

8.7 Should You Trust the Vendor's Installation? 154

8.8 Summary 154

Exercises 155

Chapter 9: Workstation Service Definition 157

9.1 Basic Service Definition 157

9.2 Refresh Cycles 161

9.3 Tiered Support Levels 165

9.4 Workstations as a Managed Service 168

9.5 Summary 170

Exercises 171

Chapter 10: Workstation Fleet Logistics 173

10.1 What Employees See 173

10.2 What Employees Don't See 174

10.3 Configuration Management Database 183

10.4 Small-Scale Fleet Logistics 186

10.5 Summary 188

Exercises 188

Chapter 11: Workstation Standardization 191

11.1 Involving Customers Early 192

11.2 Releasing Early and Iterating 193

11.3 Having a Transition Interval (Overlap) 193

11.4 Ratcheting 194

11.5 Setting a Cut-Off Date 195

11.6 Adapting for Your Corporate Culture 195

11.7 Leveraging the Path of Least Resistance 196

11.8 Summary 198

Exercises 199

Chapter 12: Onboarding 201

12.1 Making a Good First Impression 201

12.2 IT Responsibilities 203

12.3 Five Keys to Successful Onboarding 203

12.4 Cadence Changes 212

12.5 Case Studies 212

12.6 Summary 216

Exercises 217

Part III: Servers 219

Chapter 13: Server Hardware Strategies 221

13.1 All Eggs in One Basket 222

13.2 Beautiful Snowflakes 224

13.3 Buy in Bulk, Allocate Fractions 228

13.4 Grid Computing 235

13.5 Blade Servers 237

13.6 Cloud-Based Compute Services 238

13.7 Server Appliances 241

13.8 Hybrid Strategies 242

13.9 Summary 243

Exercises 244

Chapter 14: Server Hardware Features 245

14.1 Workstations Versus Servers 246

14.2 Server Reliability 249

14.3 Remotely Managing Servers 254

14.4 Separate Administrative Networks 257

14.5 Maintenance Contracts and Spare Parts 258

14.6 Selecting Vendors with Server Experience 261

14.7 Summary 263

Exercises 263

Chapter 15: Server Hardware Specifications 265

15.1 Models and Product Lines 266

15.2 Server Hardware Details 266

15.3 Things to Leave Out 278

15.4 Summary 278

Exercises 279

Part IV: Services 281

Chapter 16: Service Requirements 283

16.1 Services Make the Environment 284

16.2 Starting with a Kick-Off Meeting 285

16.3 Gathering Written Requirements 286

16.4 Customer Requirements 288

16.5 Scope, Schedule, and Resources 291

16.6 Operational Requirements 292

16.7 Open Architecture 298

16.8 Summary 302

Exercises 303

Chapter 17: Service Planning and Engineering 305

17.1 General Engineering Basics 306

17.2 Simplicity 307

17.3 Vendor-Certified Designs 308

17.4 Dependency Engineering 309

17.5 Decoupling Hostname from Service Name 313

17.6 Support 315

17.7 Summary 319

Exercises 319

Chapter 18: Service Resiliency and Performance Patterns 321

18.1 Redundancy Design Patterns 322

18.2 Performance and Scaling 326

18.3 Summary 333

Exercises 334

Chapter 19: Service Launch: Fundamentals 335

19.1 Planning for Problems 335

19.2 The Six-Step Launch Process 336

19.3 Launch Readiness Review 345

19.4 Launch Calendar 348

19.5 Common Launch Problems 349

19.6 Summary 351

Exercises 351

Chapter 20: Service Launch: DevOps 353

20.1 Continuous Integration and Deployment 354

20.2 Minimum Viable Product 357

20.3 Rapid Release with Packaged Software 359

20.4 Cloning the Production Environment 362

20.5 Example: DNS/DHCP Infrastructure Software 363

20.6 Launch with Data Migration 366

20.7 Controlling Self-Updating Software 369

20.8 Summary 370

Exercises 371

Chapter 21: Service Conversions 373

21.1 Minimizing Intrusiveness 374

21.2 Layers Versus Pillars 376

21.3 Vendor Support 377

21.4 Communication 378

21.5 Training 379

21.6 Gradual Roll-Outs 379

21.7 Flash-Cuts: Doing It All at Once 380

21.8 Backout Plan 383

21.9 Summary 385

Exercises 385

Chapter 22: Disaster Recovery and Data Integrity 387

22.1 Risk Analysis 388

22.2 Legal Obligations 389

22.3 Damage Limitation 390

22.4 Preparation 391

22.5 Data Integrity 392

22.6 Redundant Sites 393

22.7 Security Disasters 394

22.8 Media Relations 394

22.9 Summary 395

Exercises 395

Part V: Infrastructure 397

Chapter 23: Network Architecture 399

23.1 Physical Versus Logical 399

23.2 The OSI Model 400

23.3 Wired Office Networks 402

23.4 Wireless Office Networks 406

23.5 Datacenter Networks 408

23.6 WAN Strategies 413

23.7 Routing 419

23.8 Internet Access 420

23.9 Corporate Standards 422

23.10 Software-Defined Networks 425

23.11 IPv6 426

23.12 Summary 428

Exercises 429

Chapter 24: Network Operations 431

24.1 Monitoring 431

24.2 Management 432

24.3 Documentation 437

24.4 Support 440

24.5 Summary 446

Exercises 447

Chapter 25: Datacenters Overview 449

25.1 Build, Rent, or Outsource 450

25.2 Requirements 452

25.3 Summary 456

Exercises 457

Chapter 26: Running a Datacenter 459

26.1 Capacity Management 459

26.2 Life-Cycle Management 465

26.3 Patch Cables 468

26.4 Labeling 471

26.5 Console Access 475

26.6 Workbench 476

26.7 Tools and Supplies 477

26.8 Summary 480

Exercises 481

Part VI: Helpdesks and Support 483

Chapter 27: Customer Support 485

27.1 Having a Helpdesk 485

27.2 Offering a Friendly Face 488

27.3 Reflecting Corporate Culture 488

27.4 Having Enough Staff 488

27.5 Defining Scope of Support 490

27.6 Specifying How to Get Help 493

27.7 Defining Processes for Staff 493

27.8 Establishing an Escalation Process 494

27.9 Defining Emergency in Writing 495

27.10 Supplying Request-Tracking Software 496

27.11 Statistical Improvements 498

27.12 After-Hours and 24/7 Coverage 499

27.13 Better Advertising for the Helpdesk 500

27.14 Different Helpdesks for Different Needs 501

27.15 Summary 502

Exercises 503

Chapter 28: Handling an Incident Report 505

28.1 Process Overview 506

28.2 Phase AStep 1: The Greeting 508

28.3 Phase B: Problem Identification 509

28.4 Phase C: Planning and Execution 515

28.5 Phase D: Verification 518

28.6 Perils of Skipping a Step 519

28.7 Optimizing Customer Care 521

28.8 Summary 525

Exercises 527

Chapter...

Details
Erscheinungsjahr: 2016
Fachbereich: Datenkommunikation, Netze & Mailboxen
Genre: Importe, Informatik
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
ISBN-13: 9780321919168
ISBN-10: 0321919165
Sprache: Englisch
Einband: Kartoniert / Broschiert
Autor: Limoncelli, Thomas A.
Hogan, Christina J.
Chalup, Strata R.
Auflage: 3rd edition
Hersteller: Addison Wesley
Pearson Education Limited
Pearson Professional
Verantwortliche Person für die EU: Books on Demand GmbH, In de Tarpen 42, D-22848 Norderstedt, info@bod.de
Maße: 233 x 177 x 51 mm
Von/Mit: Thomas A. Limoncelli (u. a.)
Erscheinungsdatum: 28.11.2016
Gewicht: 1,85 kg
Artikel-ID: 108238283
Über den Autor

Thomas A. Limoncelli is an internationally recognized author, speaker, and system administrator with more than twenty years of experience at companies like Google, Bell Labs, and [...].

Christina J. Hogan has more than twenty years of experience in system administration and network engineering, from Silicon Valley to Italy and Switzerland. She has a master’s degree in computer science, a doctorate in aeronautical engineering, and has been part of a Formula 1 racing team.

Strata R. Chalup has more than twenty-five years of experience in Silicon Valley, focusing on IT strategy, best-practices, and scalable infrastructures at firms that include Apple, Sun, Cisco, McAfee, and Palm.

Inhaltsverzeichnis

Preface xxxix

Acknowledgments xlvii

About the Authors li

Part I: Game-Changing Strategies 1

Chapter 1: Climbing Out of the Hole 3

1.1 Organizing WIP 5

1.2 Eliminating Time Sinkholes 12

1.3 DevOps 16

1.4 DevOps Without Devs 16

1.5 Bottlenecks 18

1.6 Getting Started 20

1.7 Summary 21

Exercises 22

Chapter 2: The Small Batches Principle 23

2.1 The Carpenter Analogy 23

2.2 Fixing Hell Month 24

2.3 Improving Emergency Failovers 26

2.4 Launching Early and Often 29

2.5 Summary 34

Exercises 34

Chapter 3: Pets and Cattle 37

3.1 The Pets and Cattle Analogy 37

3.2 Scaling 39

3.3 Desktops as Cattle 40

3.4 Server Hardware as Cattle 41

3.5 Pets Store State 43

3.6 Isolating State 44

3.7 Generic Processes 47

3.8 Moving Variations to the End 51

3.9 Automation 53

3.10 Summary 53

Exercises 54

Chapter 4: Infrastructure as Code 55

4.1 Programmable Infrastructure 56

4.2 Tracking Changes 57

4.3 Benefits of Infrastructure as Code 59

4.4 Principles of Infrastructure as Code 62

4.5 Configuration Management Tools 63

4.6 Example Infrastructure as Code Systems 67

4.7 Bringing Infrastructure as Code to Your Organization 71

4.8 Infrastructure as Code for Enhanced Collaboration 72

4.9 Downsides to Infrastructure as Code 73

4.10 Automation Myths 74

4.11 Summary 75

Exercises 76

Part II: Workstation Fleet Management 77

Chapter 5: Workstation Architecture 79

5.1 Fungibility 80

5.2 Hardware 82

5.3 Operating System 82

5.4 Network Configuration 84

5.5 Accounts and Authorization 86

5.6 Data Storage 89

5.7 OS Updates 93

5.8 Security 94

5.9 Logging 97

5.10 Summary 98

Exercises 99

Chapter 6: Workstation Hardware Strategies 101

6.1 Physical Workstations 101

6.2 Virtual Desktop Infrastructure 105

6.3 Bring Your Own Device 110

6.4 Summary 113

Exercises 114

Chapter 7: Workstation Software Life Cycle 117

7.1 Life of a Machine 117

7.2 OS Installation 120

7.3 OS Configuration 120

7.4 Updating the System Software and Applications 123

7.5 Rolling Out Changes . . . Carefully 128

7.6 Disposal 130

7.7 Summary 134

Exercises 135

Chapter 8: OS Installation Strategies 137

8.1 Consistency Is More Important Than Perfection 138

8.2 Installation Strategies 142

8.3 Test-Driven Configuration Development 147

8.4 Automating in Steps 148

8.5 When Not to Automate 152

8.6 Vendor Support of OS Installation 152

8.7 Should You Trust the Vendor's Installation? 154

8.8 Summary 154

Exercises 155

Chapter 9: Workstation Service Definition 157

9.1 Basic Service Definition 157

9.2 Refresh Cycles 161

9.3 Tiered Support Levels 165

9.4 Workstations as a Managed Service 168

9.5 Summary 170

Exercises 171

Chapter 10: Workstation Fleet Logistics 173

10.1 What Employees See 173

10.2 What Employees Don't See 174

10.3 Configuration Management Database 183

10.4 Small-Scale Fleet Logistics 186

10.5 Summary 188

Exercises 188

Chapter 11: Workstation Standardization 191

11.1 Involving Customers Early 192

11.2 Releasing Early and Iterating 193

11.3 Having a Transition Interval (Overlap) 193

11.4 Ratcheting 194

11.5 Setting a Cut-Off Date 195

11.6 Adapting for Your Corporate Culture 195

11.7 Leveraging the Path of Least Resistance 196

11.8 Summary 198

Exercises 199

Chapter 12: Onboarding 201

12.1 Making a Good First Impression 201

12.2 IT Responsibilities 203

12.3 Five Keys to Successful Onboarding 203

12.4 Cadence Changes 212

12.5 Case Studies 212

12.6 Summary 216

Exercises 217

Part III: Servers 219

Chapter 13: Server Hardware Strategies 221

13.1 All Eggs in One Basket 222

13.2 Beautiful Snowflakes 224

13.3 Buy in Bulk, Allocate Fractions 228

13.4 Grid Computing 235

13.5 Blade Servers 237

13.6 Cloud-Based Compute Services 238

13.7 Server Appliances 241

13.8 Hybrid Strategies 242

13.9 Summary 243

Exercises 244

Chapter 14: Server Hardware Features 245

14.1 Workstations Versus Servers 246

14.2 Server Reliability 249

14.3 Remotely Managing Servers 254

14.4 Separate Administrative Networks 257

14.5 Maintenance Contracts and Spare Parts 258

14.6 Selecting Vendors with Server Experience 261

14.7 Summary 263

Exercises 263

Chapter 15: Server Hardware Specifications 265

15.1 Models and Product Lines 266

15.2 Server Hardware Details 266

15.3 Things to Leave Out 278

15.4 Summary 278

Exercises 279

Part IV: Services 281

Chapter 16: Service Requirements 283

16.1 Services Make the Environment 284

16.2 Starting with a Kick-Off Meeting 285

16.3 Gathering Written Requirements 286

16.4 Customer Requirements 288

16.5 Scope, Schedule, and Resources 291

16.6 Operational Requirements 292

16.7 Open Architecture 298

16.8 Summary 302

Exercises 303

Chapter 17: Service Planning and Engineering 305

17.1 General Engineering Basics 306

17.2 Simplicity 307

17.3 Vendor-Certified Designs 308

17.4 Dependency Engineering 309

17.5 Decoupling Hostname from Service Name 313

17.6 Support 315

17.7 Summary 319

Exercises 319

Chapter 18: Service Resiliency and Performance Patterns 321

18.1 Redundancy Design Patterns 322

18.2 Performance and Scaling 326

18.3 Summary 333

Exercises 334

Chapter 19: Service Launch: Fundamentals 335

19.1 Planning for Problems 335

19.2 The Six-Step Launch Process 336

19.3 Launch Readiness Review 345

19.4 Launch Calendar 348

19.5 Common Launch Problems 349

19.6 Summary 351

Exercises 351

Chapter 20: Service Launch: DevOps 353

20.1 Continuous Integration and Deployment 354

20.2 Minimum Viable Product 357

20.3 Rapid Release with Packaged Software 359

20.4 Cloning the Production Environment 362

20.5 Example: DNS/DHCP Infrastructure Software 363

20.6 Launch with Data Migration 366

20.7 Controlling Self-Updating Software 369

20.8 Summary 370

Exercises 371

Chapter 21: Service Conversions 373

21.1 Minimizing Intrusiveness 374

21.2 Layers Versus Pillars 376

21.3 Vendor Support 377

21.4 Communication 378

21.5 Training 379

21.6 Gradual Roll-Outs 379

21.7 Flash-Cuts: Doing It All at Once 380

21.8 Backout Plan 383

21.9 Summary 385

Exercises 385

Chapter 22: Disaster Recovery and Data Integrity 387

22.1 Risk Analysis 388

22.2 Legal Obligations 389

22.3 Damage Limitation 390

22.4 Preparation 391

22.5 Data Integrity 392

22.6 Redundant Sites 393

22.7 Security Disasters 394

22.8 Media Relations 394

22.9 Summary 395

Exercises 395

Part V: Infrastructure 397

Chapter 23: Network Architecture 399

23.1 Physical Versus Logical 399

23.2 The OSI Model 400

23.3 Wired Office Networks 402

23.4 Wireless Office Networks 406

23.5 Datacenter Networks 408

23.6 WAN Strategies 413

23.7 Routing 419

23.8 Internet Access 420

23.9 Corporate Standards 422

23.10 Software-Defined Networks 425

23.11 IPv6 426

23.12 Summary 428

Exercises 429

Chapter 24: Network Operations 431

24.1 Monitoring 431

24.2 Management 432

24.3 Documentation 437

24.4 Support 440

24.5 Summary 446

Exercises 447

Chapter 25: Datacenters Overview 449

25.1 Build, Rent, or Outsource 450

25.2 Requirements 452

25.3 Summary 456

Exercises 457

Chapter 26: Running a Datacenter 459

26.1 Capacity Management 459

26.2 Life-Cycle Management 465

26.3 Patch Cables 468

26.4 Labeling 471

26.5 Console Access 475

26.6 Workbench 476

26.7 Tools and Supplies 477

26.8 Summary 480

Exercises 481

Part VI: Helpdesks and Support 483

Chapter 27: Customer Support 485

27.1 Having a Helpdesk 485

27.2 Offering a Friendly Face 488

27.3 Reflecting Corporate Culture 488

27.4 Having Enough Staff 488

27.5 Defining Scope of Support 490

27.6 Specifying How to Get Help 493

27.7 Defining Processes for Staff 493

27.8 Establishing an Escalation Process 494

27.9 Defining Emergency in Writing 495

27.10 Supplying Request-Tracking Software 496

27.11 Statistical Improvements 498

27.12 After-Hours and 24/7 Coverage 499

27.13 Better Advertising for the Helpdesk 500

27.14 Different Helpdesks for Different Needs 501

27.15 Summary 502

Exercises 503

Chapter 28: Handling an Incident Report 505

28.1 Process Overview 506

28.2 Phase AStep 1: The Greeting 508

28.3 Phase B: Problem Identification 509

28.4 Phase C: Planning and Execution 515

28.5 Phase D: Verification 518

28.6 Perils of Skipping a Step 519

28.7 Optimizing Customer Care 521

28.8 Summary 525

Exercises 527

Chapter...

Details
Erscheinungsjahr: 2016
Fachbereich: Datenkommunikation, Netze & Mailboxen
Genre: Importe, Informatik
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
ISBN-13: 9780321919168
ISBN-10: 0321919165
Sprache: Englisch
Einband: Kartoniert / Broschiert
Autor: Limoncelli, Thomas A.
Hogan, Christina J.
Chalup, Strata R.
Auflage: 3rd edition
Hersteller: Addison Wesley
Pearson Education Limited
Pearson Professional
Verantwortliche Person für die EU: Books on Demand GmbH, In de Tarpen 42, D-22848 Norderstedt, info@bod.de
Maße: 233 x 177 x 51 mm
Von/Mit: Thomas A. Limoncelli (u. a.)
Erscheinungsdatum: 28.11.2016
Gewicht: 1,85 kg
Artikel-ID: 108238283
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