https://redaltkey.com/posts Written companions to the Red ALT Key YouTube channel: Linux, Docker, home labs, and virtualization. en Sun, 06 Sep 2026 00:00:00 GMT https://redaltkey.com/posts/docker-containers-images-and-stacks-explained https://redaltkey.com/posts/docker-containers-images-and-stacks-explained The three Docker concepts that trip people up most, explained the way I wish someone had explained them to me: images, containers, and multi-service stacks. Sun, 06 Sep 2026 00:00:00 GMT https://redaltkey.com/posts/fixing-ubuntu-screen-resolution-in-hyper-v https://redaltkey.com/posts/fixing-ubuntu-screen-resolution-in-hyper-v Ubuntu stuck at a tiny resolution inside a Hyper-V VM? Here's why it happens and the two real fixes, depending on whether you're using Enhanced Session Mode. Sun, 06 Sep 2026 00:00:00 GMT https://redaltkey.com/posts/getting-started-with-a-home-lab https://redaltkey.com/posts/getting-started-with-a-home-lab You don't need a rack of enterprise servers to start a home lab. Here's how to begin with what you already own. Mon, 24 Aug 2026 00:00:00 GMT https://redaltkey.com/posts/kali-linux-in-docker https://redaltkey.com/posts/kali-linux-in-docker Spin up a disposable Kali Linux environment in Docker in minutes — no dual-boot, no dedicated VM, no fuss. Mon, 17 Aug 2026 00:00:00 GMT https://redaltkey.com/posts/what-exactly-is-linux https://redaltkey.com/posts/what-exactly-is-linux A beginner-friendly breakdown of what Linux actually is, why it exists, and how it stacks up against Windows and macOS. Mon, 03 Aug 2026 00:00:00 GMT