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by William J. Rothwell, Ross Brunson
CompTIA Linux+ XK0-004 Cert Guide
Cover Page
About This eBook
Title Page
Copyright Page
Contents at a Glance
Table of Contents
About the Authors
Dedication
Acknowledgments
About the Technical Reviewer
We Want to Hear from You!
Reader Services
Introduction
Goals and Methods
The Linux+ Domains and Objectives
How This Book Maps to the Exam Objectives
Book Features
What’s New?
Who Should Read This Book?
Strategies for Exam Preparation
Companion Website
Pearson Test Prep Practice Test Software
Accessing the Pearson Test Prep Software Online
Accessing the Pearson Test Prep Software Offline
Customizing Your Exams
Updating Your Exams
Part I: Software Management
Chapter 1. Installing Linux
Foundation Topics
Hardware and Linux Installation
Summary
Chapter 2. Package Installation and Management
“Do I Know This Already?” Quiz
Foundation Topics
Software in a Linux System
Installing Software from Source
Packages and Package Managers
RPM and YUM Package Management
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 3. Virtualization
“Do I Know This Already?” Quiz
Foundation Topics
What Is Virtualization?
Types of Virtualization/Hypervisors
Bootstrapping VMs
Template Formats
Virtualization Storage
Networking Considerations
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 4. The Boot Process
“Do I Know This Already?” Quiz
Foundation Topics
The Linux Boot Process
Boot Loaders and Files
When Kernels Panic
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 5. Managing System Services
“Do I Know This Already?” Quiz
Foundation Topics
systemd
Down Memory Lane with SysVinit
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 6. System Performance
“Do I Know This Already?” Quiz
Foundation Topics
Managing Processes
Sending Signals to Processes
Job Control
Managing Process Priorities
Leaving Programs Running After Logout
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part II: File Management
Chapter 7. File Manipulation
“Do I Know This Already?” Quiz
Foundation Topics
File and Directory Operations
Working with Input/Output Streams
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 8. File Processing
“Do I Know This Already?” Quiz
Foundation Topics
Reading File Contents
Filters
A Tour of the vim Editor
nano, nano
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 9. File Permissions and Escalation
“Do I Know This Already?” Quiz
Foundation Topics
Working with Permissions
Manipulating Permissions
Special File Permissions
Finding Files by Permission
Access Control Lists
Understanding Permission Problems
Default Permissions
Changing User Ownership
Changing Group Ownership
User Privilege Escalation
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 10. SELinux and AppArmor
“Do I Know This Already?” Quiz
Foundation Topics
SELinux Configurations
SELinux Contexts
AppArmor
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 11. File Compression and Storage
“Do I Know This Already?” Quiz
Foundation Topics
Archive and Restore Utilities
Compression Tools
Backing Up Is Hard to Do
Off-Site/Off-System Storage
Integrity Checks
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part III: Account Management
Chapter 12. User and Group Management
“Do I Know This Already?” Quiz
Foundation Topics
User Account Fundamentals
Group Accounts
Adding Users and Groups
Modifying Users and Groups
Removing Users and Groups
The Shadow Suite
Changing Passwords
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 13. Account Security
“Do I Know This Already?” Quiz
Foundation Topics
Pluggable Authentication Modules (PAMs)
Secure Shell
Terminals PTY/TTY
Public Key Infrastructure
Using TCP Wrappers for Securing Services
Virtual Private Network (VPN) Clients
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 14. Logging Services
“Do I Know This Already?” Quiz
Foundation Topics
System Logging
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part IV: Device Management
Chapter 15. Linux Devices
“Do I Know This Already?” Quiz
Foundation Topics
Understanding Linux Hardware
Managing Printers and Printing
Linux Graphical User Interfaces
Accessibility Options
Remote Desktop
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 16. Hardware Troubleshooting
“Do I Know This Already?” Quiz
Foundation Topics
Storage Monitoring and Configuration
CPU Monitoring and Configuration
Memory Monitoring and Configuration
Troubleshooting Additional Hardware Issues
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 17. Kernel Modules
“Do I Know This Already?” Quiz
Foundation Topics
Understanding Kernel Modules
Managing Kernel Modules
The modprobe Command
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 18. Storage Concepts
“Do I Know This Already?” Quiz
Foundation Topics
Basic Partitions
Filesystem Hierarchy
Device Mapper
Filesystem Types
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 19. Storage Configuration
“Do I Know This Already?” Quiz
Foundation Topics
Disk Partitioning Tools
Managing LVM
Managing Software RAID
Creating Filesystems
Advanced Filesystem Commands
Mounting and Unmounting
Space Utilization
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part V: Network Management
Chapter 20. Network Configuration
“Do I Know This Already?” Quiz
Foundation Topics
Conceptual Overview of Networking
Managing Interfaces
Network Configuration Utilities
Bonding
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 21. Network Troubleshooting
“Do I Know This Already?” Quiz
Foundation Topics
Key Network Troubleshooting Concepts
Network Troubleshooting Tools
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 22. Linux Firewalls
“Do I Know This Already?” Quiz
Foundation Topics
The iptables Command
Additional Firewall Technologies
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part VI: Automation
Chapter 23. Orchestration
“Do I Know This Already?” Quiz
Foundation Topics
Automation and Orchestration
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 24. Automate Tasks
“Do I Know This Already?” Quiz
Foundation Topics
Job Control
Leaving Programs Running After Logout
The cron System
Running ad hoc Jobs
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 25. Manage Localization
“Do I Know This Already?” Quiz
Foundation Topics
Time Zones
Character Encoding
Representing Locales
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 26. BASH Scripting Essentials
“Do I Know This Already?” Quiz
Foundation Topics
Basics of Scripting
Shell Script Commands
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 27. Git
“Do I Know This Already?” Quiz
Foundation Topics
Version Control Concepts
Git Concepts and Features
Handling Branches
Executing Diffs
Merging Files
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part VII: Security and Server Management
Chapter 28. Server Roles
“Do I Know This Already?” Quiz
Foundation Topics
Server Types
Server Features
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Chapter 29. Security Best Practices
“Do I Know This Already?” Quiz
Foundation Topics
Host Security Best Practices
Authentication Security Best Practices
Service Security Best Practices
Banners
Summary
Exam Preparation Tasks
Review All Key Topics
Define Key Terms
Review Questions
Part VIII: Final Preparation
Chapter 30. Final Preparation
Exam Information
Getting Ready
Tools for Final Preparation
Suggested Plan for Final Review/Study
Summary
Glossary
Appendix A. Answers to the “Do I Know This Already?” Quizzes and Review Questions
Appendix B. CompTIA Linux+ XK0-004 Cert Guide Exam Updates
Always Get the Latest at the Book’s Product Page
Technical Content
Index
Appendix C. Study Planner
Where are the companion content files? - Register
Code Snippets
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Copyright Page
CompTIA Linux+ XK0-004 Cert Guide
William “Bo” Rothwell
Ross Brunson
PEARSON IT CERTIFICATION
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