01
Linux Foundations
Understand the operating system before memorizing commands.
- Linux architecture and distributions
- Shell and filesystem model
- Processes and signals
- Users, groups and permissions
- Packages and repositories
All training programs
FOUNDATIONS → ADMINISTRATION → INTERNALS → PRODUCTION
Linux & Open Source Engineering
Build a durable Linux mental model, then progress into administration, networking, security, performance, troubleshooting and production operations.
Outcomes
Understand Linux architecture and operating-system concepts
Administer users, services, storage and networking
Diagnose service, process, memory, CPU, I/O and network problems
Apply security and production-operability practices
Audience & prerequisites
Who it is for— Beginners entering infrastructure roles— Linux administrators— DevOps / platform engineers— Support and operations teams
Prerequisites— Basic computer and command-line familiarity for foundation tracks— Advanced tracks assume working Linux experience
Representative curriculum
Training topics, organized as engineering modules.
The exact sequence is adjusted to the audience. Foundation topics can be compressed for experienced teams; architecture and troubleshooting can be expanded for advanced programs.
02
Administration & Services
Operate a Linux host as a managed system.
- systemd services and boot
- Logging and journald
- Storage, filesystems and mounts
- Scheduling and automation
- SSH and remote administration
03
Networking
Connect host behavior to network behavior.
- TCP/IP fundamentals
- Routing and DNS
- Sockets and ports
- firewalld / nftables concepts
- tcpdump and connection diagnosis
04
Security & Hardening
Build practical host-security controls.
- Least privilege
- SSH hardening
- SELinux fundamentals
- Service exposure review
- Patch and configuration hygiene
05
Performance & Troubleshooting
Develop a repeatable diagnostic method.
- CPU, memory and load
- Disk and filesystem I/O
- Network performance
- Process-level diagnosis
- Evidence-driven troubleshooting
06
Production Engineering
Move from administration to operational judgment.
- Capacity and resilience
- Observability
- Change safety
- Failure scenarios
- Runbooks and incident thinking
Hands-on work
Labs are part of the learning path.
Exercises emphasize observation, implementation, failure and diagnosis rather than command copying.
01
Diagnose a failed systemd service
02
Find a CPU / memory bottleneck
03
Trace a network connectivity failure
04
Harden SSH and review exposed services
05
Investigate disk I/O pressure
Customization
Align the program to your engineering environment.
Programs can be aligned to RHEL, Rocky Linux, Ubuntu, Debian or an organization's operational standards.
LinuxsystemdShellNetworkingStorageSELinuxPerformance toolsOpen-source infrastructure