Linux

DevOps interviews rarely include a round labeled “Linux”, but Linux is present in almost every technical discussion. It appears when containers fail to start, when a deployment hangs, when disk fills unexpectedly, when a service cannot be reached. Linux questions inside DevOps interviews are rarely about commands alone. They reveal whether you understand how systems behave underneath modern infrastructure. Below are common Linux-style questions that come up in DevOps interviews, and what they actually evaluate. ...

I’ve built and documented Windows Active Directory labs before, you will find some on this website and some on my GitHub. Linux joining AD is conceptually simpler, but operationally more fragile. One wrong DNS setting, one wrong network mode, nothing works, and now I’m mad at my computer, trying to figure out what went wrong. This lab documents the correct mental model, and the exact steps I took to complete it. ...