CompTIA Linux+ Study Guide

The latest edition of the gold standard in Linux+ certification exam prep and skills reinforcement

In the newly revised sixth edition of the CompTIA Linux+ Study Guide: Exam XK0-006, veteran system and network administrator Richard Blum delivers a fully up-to-date guide to the challenging CompTIA Linux+ certification exam, as well as a concise discussion of the skills and knowledge you'll need to succeed in the real world as a Linux systems professional.

The book contains clear and straightforward information on all Linux administration topics, including system management, services and user management, security, automation, orchestration, scripting, and troubleshooting. You'll also find:

• Coverage of every subject tested by the newly updated XK0-006 Linux+ certification exam
• New material for DevOps engineers seeking to understand how to deploy applications on different Linux distributions and cloud platforms
• Intuitively organized quick-reference information perfect for newly minted system and network administrators working with Linux operating systems
• Complimentary access to the Sybex online learning environment, including the online test bank, a practice assessment test, chapter review questions, flashcards, and a searchable key term glossary

Perfect for network and system admins studying for the new Linux+ certification exam, the CompTIA Linux+ Study Guide is also a must-read for Linux admins and IT professionals looking to update their skillset, as well as certification candidates seeking a roadmap to attaining further Linux certifications.

Introduction xxxi

The Exam Objectives xxxviii

Assessment Test xlvii

Answers to Assessment Test lix

Part I Gathering Your Tools 1

Chapter 1 Preparing Your Environment 3

Chapter 2 Introduction to Services 19

Chapter 3 Managing Files, Directories, and Text 47

Chapter 4 Searching and Analyzing Text 93

Part II Starting Up and Configuring Your System 135

Chapter 5 Explaining the Boot Process 137

Chapter 6 Maintaining System Startup and Services 161

Chapter 7 Configuring Network Connections 203

Chapter 8 Comparing GUIs 239

Chapter 9 Adjusting Localization Options 271

Part III Managing Your System 291

Chapter 10 Administering Users and Groups 293

Chapter 11 Handling Storage 333

Chapter 12 Protecting Files 367

Chapter 13 Governing Software 399

Chapter 14 Tending Kernel Modules 429

Part IV Securing Your System 441

Chapter 15 Applying Ownership and Permissions 443

Chapter 16 Looking at Access and Authentication Methods 473

Chapter 17 Implementing Logging Services 507

Chapter 18 Overseeing Linux Firewalls 525

Chapter 19 Embracing Best Security Practices 557

Part V Troubleshooting Your System 581

Chapter 20 Analyzing System Properties and Remediation 583

Chapter 21 Optimizing Performance 617

Chapter 22 Investigating User Issues 635

Chapter 23 Dealing with Linux Devices 655

Chapter 24 Troubleshooting Application and Hardware Issues 679

Part VI Automating Your System 711

Chapter 25 Deploying Bash Scripts 713

Chapter 26 Python Concepts 743

Chapter 27 Automating Jobs 765

Chapter 28 Controlling Versions with Git 785

Part VII Realizing Virtual and Cloud Environments 807

Chapter 29 Understanding Cloud and Virtualization Concepts 809

Chapter 30 Inspecting Cloud and Virtualization Services 827

Chapter 31 Orchestrating the Environment 849

Appendix Answers to the Review Questions 865

Index 937

ABOUT THE AUTHOR

RICHARD BLUM has over 35 years of experience working as a system and network administrator. He teaches online courses in Linux and Web programming and is co-author with Christine Bresnahan of several Linux titles, including CompTIA Linux+ Study Guide, Linux Essentials, Mastering Linux System Administration, and the Linux Command Line and Shell Scripting Bible.

Your easy-to-follow guide to preparing for the CompTIA Linux+ certification exam

The CompTIA^® Linux+^® Study Guide, Sixth Edition, is your comprehensive resource for full coverage of the newly updated XK0-006 exam. This Sybex Study Guide covers 100% of the XK0-006 objectives. Prepare for the exam faster and smarter with Sybex thanks to efficient and authoritative content, including an assessment test that validates and measures exam readiness, objective map, real-world examples and scenarios, practical exercises, and challenging chapter review questions. Reinforce and remember what you’ve learned with the Sybex online learning environment and test bank, accessible across almost any device. Get ready for the CompTIA^® Linux+ exam with Sybex.

Coverage of 100% of all exam objectives in this Study Guide means you’ll be ready for:

• System Management
• Services and User Management
• Security
• Automation, Orchestration, and Scripting
• Troubleshooting

ABOUT THE COMPTIA LINUX+ CERTIFICATION

The CompTIA Linux+ certification validates your ability to perform the tasks required of an early-career systems administrator supporting Linux systems. You’ll demonstrate your abilities with the foundational skills demanded by hiring managers.

Interactive learning environment

Take your exam prep to the next level with Sybex’s superior interactive online study tools. To access our learning environment, simply visit www.wiley.com/go/sybextestprep, register your book to receive your unique PIN, and instantly gain one year of FREE access after activation to:

• Interactive test bank with a practice exam to help you identify areas where further review is needed. Get more than 90% of the answers correct, and you’re ready to take the certification exam.
• 100 electronic flashcards to reinforce learning and last-minute prep before the exam
• Comprehensive glossary in PDF format gives you instant access to the key terms so you are fully prepared