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LHB Linux Digest #26.05: New Advanced Docker Course, pingtrace, File Descriptors and More Linux Stuff

New month, new course!

Β· By Abhishek Prakash Β· 5 min read

Warp Terminal

You might remember that I mentioned working on an advanced Docker course a while back. It’s now ready.

This course focuses on understanding how containers actually work. You get to learn about namespaces, cgroups, networking, image optimization, observability, and container security.

If you already know basic Docker commands and want to go beyond docker run, this course will help you understand Docker at a deeper level.

Each module also has a practice lab so that you can put your learning to some testing.

Advanced Docker Course: Container Internals, Networking, Security and Image Optimization
Level up your Docker skills. Learn container internals, networking, image optimization, observability, and security in this practical course.

Next week, we will publish a few DIY lab scenarios. Doing it on your own is the best form of learning. Stay tuned πŸ˜„

This is the 19 courses so far and we’re not stopping. Three new courses have already been released in 2026, and our goal is to reach at least 25 courses by the end of the year πŸ’ͺ

That’s also why this is a great time to consider the Pro membership. It gives you access to all current and future courses. You can choose the annual Pro plan at $69 per year, or skip recurring payments altogether with a lifetime membership for $199, a special price reserved for newsletter subscribers.

If you’ve been thinking about upgrading, this is a good moment to jump in.

Lifetime membership at $20 OFF

About the author

Abhishek Prakash Abhishek Prakash
Updated on Mar 16, 2026