Systemd Timers: Modern Linux Scheduling Beyond Cron Jobs
Cron has scheduled Linux jobs since 1975, but systemd timers offer features cron simply cannot match: integrated logging...
Expert tutorials, guides, and tips on Linux, DevOps, and IT Administration
A focused, eight-volume curriculum that teaches absolute beginners the Linux skills that actually matter โ the command line, files, scripts, packages, networking, monitoring, security, and the daily work of administration. One volume per concept, in order, with no jargon and no detours....
A practical, opinionated 2026 roadmap to take you from "I have never opened a terminal" to "I run hardened Linux servers in production." Eight books, three stages, one straight line โ and a study schedule you can actually finish in twelve weeks....
Explore the complete Dargslan open-source IT ecosystem: 120 Linux PyPI packages, 119 Windows Python CLI tools, 120 PowerShell modules on PSGallery, and organized GitHub repositories. Free, professional-grade tools for sysadmins, DevOps engineers, and cybersecurity professionals....
Cron has scheduled Linux jobs since 1975, but systemd timers offer features cron simply cannot match: integrated logging...
Locale misconfiguration is a low-grade infection that surfaces as garbled accented characters, broken sort orders, myste...
GRUB is the seam between firmware and your operating system, and the file that controls it is one mistype away from an u...
Swap is misunderstood by half the systems engineers who configure it. "Disable swap entirely" and "make swap as large as...
SSH is the front door to every Linux server you operate. Get it right and the box can sit on the public internet for yea...
The Message of the Day is the first thing an administrator sees on every login โ and the first thing a forensic invest...
Kernel modules are the only Linux subsystem where you can extend the running kernel without recompiling โ and also the...
Network interfaces fail in subtle ways: a single dropped packet per million, a half-megabit of CRC errors, an interface ...
The sudoers file is the single most important text file on a Linux server. A misconfigured rule is the most common path ...
Welcome to the Dargslan Tech Blog โ long-form, hands-on articles for engineers who run real systems in production. We publish every week on Linux administration, DevOps tooling, cloud architecture, cybersecurity, Python automation, Windows Server, and the practical day-to-day skills that separate junior sysadmins from senior platform engineers. Every post is written by working professionals, includes copy-pasteable code and configuration files, and is updated whenever upstream tools release breaking changes.
There is no shortage of tech blogs on the internet, but most fall into one of two traps: shallow listicles written by people who have never touched the tools, or 30-page corporate whitepapers designed to sell a product. Our articles sit in the middle โ long enough to actually solve your problem, short enough to read with a coffee, and always grounded in working examples you can run in your own terminal. We don't write filler, we don't gate content behind email forms, and we never publish AI-generated slop without expert review.
Our writers come from a sysadmin, SRE, and DevOps background and have shipped production systems for fintech, healthcare, telco, and SaaS companies across Europe and North America. When you read a tutorial here, you're reading what someone actually did at 2am during an incident โ not a sanitized vendor case study.
Subscribe to our RSS feed, follow the tech news section, or grab the daily IT tip for a steady stream of practical knowledge. If long-form learning is more your style, our companion eBook library covers every topic from this blog in 200-500 page depth, with downloadable code repositories and lifetime updates.