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If you’ve ever rebooted a Linux server and had it fail to come back up, there’s a good chance the culprit is sitting right in your /etc/fstab file. Device names like /dev/sda1 can shift after a reboot, a drive swap, or even a kernel update — and when that happens, your mounts break and your server may not boot at all. In this video, I break down why UUIDs matter for Linux storage, and I show you a real production server that ran into exactly this problem.
In this video, I’ll walk you through the essential first steps you should take every time you deploy a new Linux server. Whether you’re a seasoned sysadmin or just getting started with Linux server administration, these foundational steps will help you secure your server, set up SSH key authentication, and establish a solid baseline configuration.
lnav is a powerful, feature-rich log file viewer for Linux that makes analyzing, searching, and filtering log files far easier than traditional tools like tail and grep. In this tutorial, you’ll learn how to install lnav, navigate its interface, search and filter log files, view multiple logs at once, and tail live log files in real time — all from the command line.
Whether you’re a Linux sysadmin troubleshooting a production server, a homelab enthusiast digging through system logs, or a Linux user who wants a smarter way to read log files, lnav is a tool worth adding to your workflow.
In this video, I explore how AI can be used for System Administration by integrating Claude Code. I walk through a real experiment where I tested AI against my infrastructure automation workflow to see how useful AI really is for sysadmins.
Is AI a blessing or a curse? Check out the video to learn more about this experiment as well as my findings.
In this video, we explore 10 smart ways AI tools (like ChatGPT) can help you solve real-world Linux issues faster and more efficiently. Whether you’re debugging logs, hardening config files, or escaping dependency hell — AI can save you time and frustration!
This full course will teach you everything you need to know to monitor your server’s resource health with Netdata. Discover how to install it, view graphs, set up alerts, view logs, and more! In this episode, we’ll get an overview of what to expect from the course.
Thanks so much to Netdata for sponsoring this course! Check them out for free and enhance your server monitoring.
(more…)Systemd – it’s the most popular init system when it comes to Linux, and everyone loves it. Honest. But whether or not you love Systemd, you’re going to love this video because it will teach you all the core basics of Systemd. This coverage will include starting, stopping, restarting units, location priority in regard to unit file locations, editing service units and more!
