CompTIA Linux+ (XK0-004)

Introduction

Preparing Your Environment

• Setting Up a Learning Space
• Exploring Linux Distributions
• Locating a Terminal
• Summary

Sifting Through Services

• What Is a Linux Server?
• Serving the Basics
• Serving Local Networks
• Implementing Security
• Improving Performance
• Summary
• Exam Essentials

Managing Files, Directories, and Text

• Handling Files and Directories
• Linking Files and Directories
• Reading Files
• Finding Information
• Summary
• Exam Essentials

Searching and Analyzing Text

• Processing Text Files
• Redirecting Input and Output
• Editing Text Files
• Summary
• Exam Essentials

Explaining the Boot Process

• The Linux Boot Process
• The Firmware Startup
• Linux Bootloaders
• System Recovery
• Summary
• Exam Essentials

Maintaining System Startup and Services

• Looking at init
• Managing systemd Systems
• Managing SysV init Systems
• Digging Deeper into systemd
• Summary
• Exam Essentials

Configuring Network Connections

• Configuring Network Features
• Basic Network Troubleshooting
• Advanced Network Troubleshooting
• Summary
• Exam Essentials

Comparing GUIs

• Focusing on the GUI
• Serving Up the GUI
• Using Remote Desktops
• Forwarding
• Summary
• Exam Essentials

Adjusting Localization Options

• Understanding Localization
• Setting Your Locale
• Looking at Time
• Summary
• Exam Essentials

Administering Users and Groups

• Managing User Accounts
• Managing Groups
• Setting Up the Environment
• Querying Users
• Managing Disk Space Usage
• Summary
• Exam Essentials

Handling Storage

• Storage Basics
• Partitioning Tools
• Understanding Filesystems
• Formatting Filesystems
• Mounting Filesystems
• Managing Filesystems
• Storage Alternatives
• Summary
• Exam Essentials

Protecting Files

• Understanding Backup Types
• Looking at Compression Methods
• Comparing Archive and Restore Utilities
• Securing Offsite/Off-System Backups
• Checking Backup Integrity
• Summary
• Exam Essentials

Governing Software

• Working with Source Code
• Packaging Applications
• Summary
• Exam Essentials

Tending Kernel Modules

• Exploring Kernel Modules
• Installing Kernel Modules
• Removing Kernel Modules
• Summary
• Exam Essentials

Applying Ownership and Permissions

• Looking at File and Directory Permissions
• Access Control Lists
• Context-Based Permissions
• Understanding Linux User Types
• Restricting Users
• Summary
• Exam Essentials

Looking at Access and Authentication Methods

• Getting to Know PAM
• Exploring PKI Concepts
• Using SSH
• Using VPN as a Client
• Summary
• Exam Essentials

Implementing Logging Services

• Understanding the Importance of Logging
• Basic Logging Using rsyslog
• Journaling with systemd-journald
• Summary
• Exam Essentials

Overseeing Linux Firewalls

• Providing Access Control
• Looking at Firewall Technologies
• Forwarding IP Packets
• Dynamically Setting Rules
• Summary
• Exam Essentials

Embracing Best Security Practices

• User Security
• System Security
• Network Security
• Summary
• Exam Essentials

Analyzing System Properties and Remediation

• Troubleshooting the Network
• Troubleshooting Storage Issues
• Troubleshooting the CPU
• Troubleshooting Memory
• Surviving a Lost root Password
• Summary
• Exam Essentials

Optimizing Performance

• Looking at Processes
• Monitoring Processes in Real Time
• Managing Processes
• Summary
• Exam Essentials

Investigating User Issues

• Troubleshooting Access
• Examining File Obstacles
• Exploring Environment and Shell Issues
• Summary
• Exam Essentials

Dealing with Linux Devices

• Communicating with Linux Devices
• Working with Devices
• Using Hot Pluggable Devices
• Summary
• Exam Essentials

Troubleshooting Application and Hardware Issues

• Dealing with Storage Problems
• Uncovering Application Permission Issues
• Analyzing Application Dependencies
• Looking at SELinux Context Violations
• Exploring Firewall Blockages
• Troubleshooting Additional Hardware Issues
• Summary
• Exam Essentials

Deploying Bash Scripts

• The Basics of Shell Scripting
• Advanced Shell Scripting
• Writing Script Programs
• Summary
• Exam Essentials

Automating Jobs

• Running Scripts in Background Mode
• Running Scripts Without a Console
• Sending Signals
• Job Control
• Running Like Clockwork
• Summary
• Exam Essentials

Controlling Versions with Git

• Understanding Version Control
• Setting Up Your Git Environment
• Committing with Git
• Merging Versions
• Summary
• Exam Essentials

Understanding Cloud and Virtualization Concepts

• Considering Cloud Services
• Understanding Virtualization
• Exploring Containers
• Exercise
• Summary
• Exam Essentials

Inspecting Cloud and Virtualization Services

• Focusing on VM Tools
• Understanding Bootstrapping
• Exploring Storage Issues
• Considering Network Configurations
• Summary
• Exam Essentials

Orchestrating the Environment

• Understanding Orchestration Concepts
• Provisioning the Data Center
• Looking at Container Orchestration Engines
• Summary
• Exam Essentials