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 — 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 — 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....
Learn the 7 essential Linux server monitoring tools that every system administrator needs to master. From htop to Prometheus, this guide covers real-time performance tracking, log analysis, and proactive alerting strategies....
Stop doing repetitive tasks manually. These 10 ready-to-use Bash scripts automate common Linux server management tasks including log rotation, disk monitoring, user management, SSL certificate checks, and service health monitoring....
Learn a systematic approach to Linux network troubleshooting using essential tools like ping, traceroute, ss, tcpdump, and dig. This hands-on guide walks you through diagnosing connectivity issues, DNS problems, firewall rules, and performance bottlenecks....
A comprehensive security hardening checklist for Linux production servers. Covers SSH hardening, firewall configuration, user management, kernel tuning, file permissions, intrusion detection, and ongoing security maintenance with actionable steps....
A comprehensive guide to Linux backup strategies and disaster recovery planning. Learn rsync, Borg, LVM snapshots, automated backup scripts, and the 3-2-1 backup rule with practical implementation examples....
Master Azure automation with PowerShell in 2026. Covers Az module installation, authentication (Service Principals, Managed Identity), VM management, networking, storage, Azure SQL, AKS, Key Vault, RBAC, Azure Policy, Cost Management, Azure Functions with PowerShell, CI/CD pipelines, monitoring and alerting, disaster recovery scripts, and production-ready automation patterns with 50+ real-world code examples....
The definitive Microsoft Azure guide for IT professionals and system administrators in 2026. Covers core services, Azure AD (Entra ID), virtual machines, networking, Kubernetes (AKS), serverless, storage, security, cost optimization, hybrid cloud with Azure Arc, PowerShell automation, certifications (AZ-900 through AZ-500), and real-world deployment scenarios with CLI examples....
The definitive comparison of the three major cloud platforms in 2026. Covers compute, storage, networking, databases, Kubernetes, serverless, pricing, free tiers, certifications, market share, and which platform to choose based on your career goals and workload requirements — with detailed tables and real-world cost analysis....
Everything you need to know about Wazuh — the leading free, open-source SIEM and XDR platform. Covers architecture, agent deployment, intrusion detection, log analysis, file integrity monitoring, vulnerability detection, compliance (PCI DSS, HIPAA, GDPR), Wazuh vs Splunk vs ELK comparison, Docker deployment, custom rules, and real-world SOC integration....
Welcome to the Dargslan Tech Blog — 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 — 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 — 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.