Linux Handbook

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How to be Master of Linux 🐧? 1. Search the web for the error 2. Check the forums for the solution 3. Read answers other than the accepted solution 4. Try to understand the root cause of the problem 5. Repeat ♻️

Yikes! That was a nasty thing to do. Absolve yourself by installing Linux 🐧

Go ahead, tap the Windows logo 🟦🟦 🟦🟦

GitHub Actions went down again today. For about two and a half hours, CI/CD pipelines stalled worldwide. Builds failed. Deployments stopped. Teams waited. It was the third significant Actions outage in May alone. But here's the part that doesn't get talked about enough. GitHub's own CTO admitted the platform "wasn't built for the scale it's now being asked to handle." They planned for 10x growth. The actual number turned out to be 30x. What changed? AI agents. Agentic development workflows took off in late 2025. Code agents don't just commit once and open a pull request. They iterate. They trigger workflows dozens of times per session. They run tests, check results, push fixes, trigger more runs. One agent doing what a human developer does in a week might generate 10x the Actions traffic in an hour. Multiply that across thousands of teams adopting agentic workflows simultaneously, and you have a platform being hammered by a use case it was never designed for. 257 incidents in the past year. 48 major outages. GitHub Actions alone failed 57 times. We gave the agents the keys to the CI/CD pipeline before the infrastructure was ready for them. The irony is hard to miss. The same AI momentum that made GitHub more valuable as a platform is now the thing stressing it to breaking point. The question worth asking is whether GitHub can catch up fast enough, or whether this quietly accelerates the case for self-hosted alternatives like Forgejo and Gitea. Because reliability is not a nice-to-have. For teams running production deployments through Actions, every outage is a real cost.

I ask one AI to create prompts for other AI. Am I doing AI right? 🙄

@orhundev @ratatui_rs You should replace GNU Coreutils with Ratutils :)

Ratatui apps as a part of development workflow 👌 🔎 swpui — Ergonomic search-and-replace TUI for source code 💯 Regex, case-aware replacements, previews & batch actions 🦀 Written in Rust & built with @ratatui_rs ⭐ GitHub: github.com/beeb/swpui ➡️ Blog post: beeb.li/blog/introduci… #rustlang #ratatui #tui #tooling #devtools #terminal

Announcing the release of our 20th course 🎉 It covers the essentials of ELK Stack. Only, we used OpenSearch instead of Elastic Search 😇 linuxhandbook.com/courses/opense…

One of the biggest cybersecurity embarrassments of 2026 just happened. Sensitive credentials linked to the US Cybersecurity agency (CISA) were reportedly found sitting inside a PUBLIC GitHub repository. The exposed data allegedly included: • SSH keys • Plaintext passwords • Internal system credentials • Access linked to CISA and DHS environments And the worst part? Some of it may have been publicly accessible since November 2025. According to reports, the leak came from a contractor-managed GitHub repo that was improperly secured. In simple words: someone accidentally left the digital keys to critical systems lying around on the internet. What does this mean for users? There’s currently no evidence that citizen data was stolen. But incidents like this increase risks of phishing, impersonation attacks, and future breaches. It also shows how even top cybersecurity organizations can fail basic security hygiene. The agency responsible for protecting US infrastructure got caught exposing its own credentials online. Cybersecurity isn’t just about advanced AI threats anymore. Sometimes it’s still just… human stupidity.

You folks still read blogs, right? linuxhandbook.com/blog/shlink-re…

You let Claude rewrite your entire codebase And now something's broken And you have no idea what it changed, why it changed it, or how to go back There's no git log. no blame. no undo. Just vibes and a prayer 🙏 This open source AI too, fixes this. It's like git for AI agents. Every tool call tracked, every line traced back to the prompt that wrote it, full rewind coming soon Give your agent write access AND an audit trail with re_gent 👉 github.com/regent-vcs/re_…

Moved my "Vim for Linux Newbs" crash course to Gumroad and am running a Spring Sale! 75% off for the next month, starting now 😀 raylech1986it.gumroad.com/l/vimcc/70x995b

One way of saving money is to not buy a domain name until the project is completed 😭

Arch Linux

No matter how much you want to deny, AI does 10x the coding effort. Before AI I had 5 unfinished projects, After AI, I have 127 unfinished projects.

borgmatic 2.1.4 is out! 🚀 - New stand-alone Linux binary (beta) - Switched to 'uv' for faster installs & upgrades - Smarter archive matching logic Reliable backups just got faster. 🛡️ github.com/borgmatic-coll…

What do you do with your old networking gear?

@twlvone Thanks... wanted to know if we should keep making courses or just give it up entirely ;)

@LinuxHandbook AI for the quick answers, courses for the mental model. you need to understand why iptables works the way it does, not just get the command. AI accelerates the execution but the conceptual framework still needs structured learning

Do you still follow text/video courses to learn Linux or is it all AI?