CompTIA Linux+ Training
A complete training course for the CompTIA Linux+ (XK0-006 V8) certification. Covers the five official exam domains — System Management, Services and User Management, Security, Automation and Scripting, and Troubleshooting — with hands-on commands, configuration examples, and real-world scenarios drawn from modern Linux administration in on-premises, cloud, and containerized environments.
Module 1: System Management 23% of exam
Foundational Linux concepts: the boot process, filesystem hierarchy, storage and filesystems, package management, kernel modules, virtualization, backups, and system monitoring. The largest domain on the exam and the base every other domain builds on.
- 1 What CompTIA Linux+ Is 5 min Free preview
- 2 Linux Fundamentals and Distributions 6 min 🔒
- 3 The Linux Boot Process 7 min 🔒
- 4 Filesystem Hierarchy Standard 5 min 🔒
- 5 Storage: Partitioning, LVM, and RAID 8 min 🔒
- 6 Filesystems and Mounting 6 min 🔒
- 7 Package Management 6 min 🔒
- 8 Basic Networking Configuration 6 min 🔒
- 9 Backups and Snapshots 5 min 🔒
- 10 Kernel Modules and Parameters 5 min 🔒
- 11 Virtualization Concepts 5 min 🔒
- 12 System Monitoring Basics 5 min 🔒
Module 2: Services and User Management 20% of exam
systemd as the modern service manager, users and groups, permissions and ACLs, scheduled jobs, and containers with Docker and Podman. This domain was split out from System Management in the V8 update to give containers and systemd the weight they deserve on the modern exam.
- 1 systemd Fundamentals 6 min 🔒
- 2 Managing Services with systemctl 5 min 🔒
- 3 Users, Groups, and Accounts 6 min 🔒
- 4 File Permissions, Ownership, and ACLs 7 min 🔒
- 5 Scheduled Jobs: cron, at, and systemd Timers 5 min 🔒
- 6 File and Directory Management 5 min 🔒
- 7 Container Basics with Docker and Podman 6 min 🔒
- 8 Container Lifecycle and Compose 5 min 🔒
- 9 Common Network Services: DNS, NTP, SSH 5 min 🔒
- 10 Logging with journalctl and rsyslog 5 min 🔒
Module 3: Security 18% of exam
Authentication, authorization, and accounting; SSH hardening; firewalls with firewalld and nftables; mandatory access control with SELinux and AppArmor; cryptography with GPG and TLS; certificate management; auditing; and vulnerability management.
- 1 Authentication, PAM, and sudo 6 min 🔒
- 2 SSH Hardening and Key Management 6 min 🔒
- 3 Firewalls: firewalld, ufw, and nftables 7 min 🔒
- 4 SELinux and AppArmor 7 min 🔒
- 5 OS and Account Hardening 6 min 🔒
- 6 Cryptography Basics: GPG and TLS 6 min 🔒
- 7 Certificate Management and ACME 5 min 🔒
- 8 Auditing and Compliance 5 min 🔒
- 9 Vulnerability Management and Patching 5 min 🔒
Module 4: Automation, Orchestration, and Scripting 17% of exam
Bash and Python scripting, Git version control, Ansible playbooks, Puppet configuration management, CI/CD pipelines, and AI-assisted automation best practices — all new emphasis areas introduced in the V8 exam refresh.
- 1 Bash Scripting Fundamentals 6 min 🔒
- 2 Advanced Bash: Loops, Functions, and Error Handling 6 min 🔒
- 3 Python Scripting Basics for Administrators 6 min 🔒
- 4 Version Control with Git 6 min 🔒
- 5 Ansible Fundamentals 7 min 🔒
- 6 Ansible Playbooks, Roles, and Collections 6 min 🔒
- 7 Puppet and Configuration Management Concepts 5 min 🔒
- 8 CI/CD Pipelines and Infrastructure-as-Code 6 min 🔒
- 9 AI-Assisted Automation and Best Practices 5 min 🔒
Module 5: Troubleshooting 22% of exam
The second-largest domain and the most performance-based-question-heavy: boot failures, storage problems, performance analysis, network diagnostics, DNS and service issues, package conflicts, permission problems, container issues, security enforcement, and log analysis.
- 1 Troubleshooting Methodology 5 min 🔒
- 2 Diagnosing Boot Problems 6 min 🔒
- 3 Storage and Filesystem Problems 6 min 🔒
- 4 Performance Problems: CPU, Memory, and I/O 6 min 🔒
- 5 Network Troubleshooting 6 min 🔒
- 6 DNS and Service Issues 5 min 🔒
- 7 Package and Repository Issues 5 min 🔒
- 8 Permission and Access Problems 5 min 🔒
- 9 Container Troubleshooting 5 min 🔒
- 10 Security Troubleshooting: SELinux, Firewalls, TLS 5 min 🔒
- 11 Log Analysis and Post-Incident Review 5 min 🔒