What’s the best hands-on Linux course for DevOps and production troubleshooting?

A homelab will probably teach you more than another passive video course. Use a spare machine or a small virtualized environment and build services yourself. Practice creating users and permissions, deploying containers, monitoring resource usage, breaking services, restoring backups, and documenting what happened. Proxmox, TrueNAS, and similar tools can provide useful projects, but keep the focus on understanding the Linux systems underneath them.

KodeKloud can be useful if you learn well through guided labs, while Boot.dev may be better if you want a programming-heavy path. Whichever platform you choose, prioritize hands-on troubleshooting over simply completing lessons. Set up a small application with a database, logs, containers, and a deployment pipeline, then deliberately introduce failures and diagnose them.

Be careful not to treat automation as a substitute for fundamentals. Rebuilding a broken VM or container repeatedly may restore service, but it doesn’t explain why the failure happened. Learn root-cause analysis alongside Linux administration: review logs, check resource limits, inspect processes and networking, identify contributing factors, and record how the issue could be prevented. Production skills come from investigating failures, not just making them disappear.

Start with Linux system administration before focusing heavily on automation. RHCSA is a strong structured path because it makes you understand the system you’re automating. LFCS and LPIC-1 are also good alternatives, especially if you want a more vendor-neutral route. The important subjects are permissions, storage, services, networking, processes, logs, shell scripting, and troubleshooting—not just memorizing commands.

A practical free learning sequence is Linux fundamentals, shell scripting, Git, containers, and then cloud tooling. Use labs or personal projects to apply each stage. Certifications such as RHCSA, LFCS, or LPIC-1 can give you structure, but the real value comes from being able to explain what the system is doing and troubleshoot it under pressure.