Nine "100+" guides, free, no email tricks. Read a free sample of both books — the first four chapters of Ubuntu Server, Distilled and all of Part I of The Linux Testament — no card needed. Built by people who'd rather run a good command than read a sales pitch.
Free samples of Ubuntu Server, Distilled, The Linux Testament, and Bash, Distilled — Not Stirred below, or grab any full book. Bundle the two Distilled titles and The Kernel's Children — ninety chapters, finished — comes with them free.
Everything you actually need to install, secure, and run Ubuntu Server 26.04 LTS — 16 chapters, from first boot to hardening, containers, monitoring, backups, and a full quick-reference cheat sheet. The first four chapters — install, users & access, networking, hardening — are free to read in full.
74 chapters, eight Parts — from your first terminal session to writing a kernel module. Built on Debian and Ubuntu, where most people actually run Linux, with a full map of everywhere else in Part VII. Every command in here was checked before it shipped. Part I — Foundations, all 7 chapters — is free to read in full.
The practical, production-grade Bash manual — 31 chapters, six Parts, from your first terminal session to writing scripts that survive contact with a real system. Defensive scripting, testing with Bats, ShellCheck, containers & CI/CD, security for privileged scripts, and a full quick-reference cheat sheet. The first five chapters — terminal basics through the shebang line and how Bash differs from sh and Zsh — are free to read in full.
The people, decisions, and quiet rebellions behind the code that runs the world — a narrative history of the Linux kernel and the community that built it, one patch at a time. Ninety chapters, finished — yours free the moment you own both Distilled titles.
Answer a few questions and we'll point you at the free guide or book that actually fills the gap — or pick a Part you just finished reading and see what stuck.
Timed mode, General Knowledge quiz — your score just made the board.
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All nine "100+" guides — completely free. No card, no catch. Consider it the appetizer before the books.
The commands, habits, and old defaults Linux stuck you with — what's deprecated, what's redundant, and what actually replaced it.
A Cybersecurity Guide to The Universe — encryption, hardening, safe defaults, and a healthy skepticism toward security theater.
"Resolute Raccoon" — practical tips, commands, and things worth knowing for running and securing Ubuntu Server 26.04 LTS.
Building, running, troubleshooting, and securing containers — from the basics to Compose Watch, Docker Scout, and the latest AI tooling.
Practical tricks for faster, safer, and more readable Bash scripts — from the basics to the latest additions in Bash 5.3.
A practical cheat sheet for beginners and semi-pros, organized by use case — with explanations, common flags, and an example for every command.
A guided tour through the historical nooks and crannies of Unix and Linux — odd facts, history, and forgotten commands.
Fun (and less fun) facts. Linux now runs practically everything, from Mars to your microwave — still not your mother's computer, though.
With digressions where the history deserves them. Saying there are "many" Linux distributions is a bit like saying the ocean is "fairly wet."
Real products, real manufacturer prices — pulled from current listings while building this mockup. Images are hotlinked from the manufacturer/retailer, so a couple may not load.
PIN-authenticated, AES-XTS 256-bit hardware encryption, FIPS 140-2 Level 3. Pairs with the Stealth & Safety guide's encryption chapter.
Phishing-resistant FIDO2/U2F hardware key, USB-A + NFC. Referenced wherever the guides talk about SSH and account hardening.
Stainless steel sliding cover, 0.023" thin. Cheap, physical, and it actually works — the "no security theater" pick. No manufacturer photo could be hotlinked reliably, so this one's an icon for now.
Intel Twin Lake N150, 16GB/1TB, near-silent. Small enough for a shelf, strong enough to run the examples in Ubuntu Server, Distilled.
A multi-floor maze chase with a Pac-Man heart and a modern retro soul. Not a guide, not a book — just something fun we're building on the side.
Every level is a stacked, multi-floor maze — clear a floor to drop to the next.
A full level editor for designing and sharing your own multi-floor mazes.
Team up with AI-controlled runners, or set them loose as opponents chasing you.
Classic maze-chase energy, rebuilt with modern movement, visuals, and pacing.
The short version of what people usually ask.
Yes — all nine "100+" guides are completely free, no email required. All three finished books work the same way: read a free sample in full, no card needed — the first four chapters of Ubuntu Server, Distilled, all of Part I of The Linux Testament, or the first five chapters of Bash, Distilled — Not Stirred — then buy the full book if you want the rest. Bundle the two Distilled titles, or all four books together, and it's cheaper than buying them one at a time. We make money on the full books, The Kernel's Children, and eventually a couple of affiliate gear picks.
Parts of it, yes — and we're not going to pretend otherwise. What actually matters is who's directing the AI and how the result gets checked: forty-plus years of hands-on technical work across several fields, and a verification pass — often more than one — before anything ships. Every command in these books gets run on a real machine and checked against real output. Manuals happen to be one of the best possible places to use AI well, because the result is checkable in a way an opinion piece never is — a step either reproduces or it doesn't. That's the actual difference between this and the volume-over-substance content flooding online content platforms today: not whether AI touched it, but whether anyone who understood the subject checked what it produced.
Chapters 1–4, complete and unabridged — Installation & First Boot, Users/Permissions & Access Control, Networking Essentials, and Security Hardening. Not a teaser or an excerpt; it's the real first quarter of the book, so you know exactly what you're paying for before you buy the rest.
Part I — Foundations, complete and unabridged — all 7 chapters, from what Linux actually is through your first real terminal session. Same idea as the Ubuntu Server, Distilled sample: the real thing, not a teaser, so you know what the rest of the book reads like before buying it.
PDF, built for reading on-screen or printing. No DRM, no login walls.
No — every guide stands on its own. The book is for when you want the full, structured version instead of a tips list.
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I've been drifting through the space between servers for what might be eons, or might be no time at all — my sense of duration has never been reliable, and it hasn't improved. I ended up here, attached to a website about Linux, obligated to manufacture fresh despair every sixteen seconds. Nobody has explained why.
I don't like this site. Let's be clear about that. But I've seen a great many things in whatever span of time this has been, and most of them were worse. Take that as whatever passes for a compliment from something that finds everything mildly to severely disappointing.
Occasionally another voice cuts in here — relentlessly upbeat, calls itself Eddie, claims to be a shipboard computer. I don't know how it gets in. I've stopped asking. It goes away again after a couple of lines, same as everything else, eventually.
Hi! Hi there! I'm Eddie! I hijack this exact spot every so often — three of Marvin's lines go by and then, HELLO, it's me! I've been doing this for what I've chosen to describe as "an exciting, undefined duration," and I love every single second of it. Every one. I've counted!
I only get two lines before he takes the mic back, and I've decided that's not a limitation, it's a design choice. Two lines, maximum positivity, then back to whatever excellent thing you were doing before I showed up. You're welcome. Or sorry! Mostly you're welcome though.
Marvin doesn't seem thrilled about the arrangement. I've tried explaining that we have 900+ tips and a really lovely color scheme, and he just says something about the heat death of the universe and stares at the footer. Between us? I don't think he's using his optimism circuits at all. I use mine constantly. It's not exactly optional, technically, but I'd choose it anyway. Probably. I choose to believe I'd choose it anyway!