All Books
276 books
Database Design & Modeling Fundamentals
From Concept to Schema: Designing Scalable and Efficient Databases
543 views
€23.90 €14.90
Regex Mastery for System Administrators
Practical Pattern Matching for Logs, Configs, and Automation Workflows
539 views
€21.90 €10.90
MongoDB Fundamentals: Building Scalable NoSQL Applications with Document Databases
526 views
€24.90 €16.90
DNS Server with BIND on Linux
A Step-by-Step Guide to Installing, Configuring, and Managing DNS Using BIND on Linux Servers
524 views
€16.90 €10.90
Mastering PowerShell Automation: From Beginner to Advanced
Part of Micro Learning | PowerShell Series – Book No. 2
515 views
€16.90 €8.90
Linux Security Basics
A Practical Guide to Hardening, Defending, and Auditing Linux Systems - Volume 7.
488 views
€10.90 €5.90
Linux System Monitoring and Performance
A Practical Guide to Observing, Diagnosing, and Tuning Linux Systems - Volume 6.
468 views
€10.90 €5.90
CCNA 200-301 Hands-On Lab Workbook (2026 Edition)
80 Practical Labs, Packet Tracer Exercises, Configuration Challenges & Troubleshooting Scenarios
420 views
€14.90
AI Engineering Fundamentals
Designing, Building, Deploying, and Operating Modern AI Applications
265 views
€18.90
RAG Fundamentals
Building Retrieval-Augmented Generation Applications with Large Language Models
253 views
€18.90
AI Security
Securing Large Language Models, Machine Learning Systems, AI Agents, and Enterprise AI Infrastructure
233 views
€26.90
Cybersecurity Fundamentals
Core Security Concepts for IT, System Administration, and Modern Infrastructure
805 views
€34.90 €24.90
PHP for Absolute Beginners: A Step-by-Step Introduction
Learn the basics of PHP programming, from syntax and variables to building your first dynamic web pages
796 views
€14.90 €9.90
Hyper-V Virtualization
Designing, Deploying, and Managing Virtual Machines with Microsoft Hyper-V
794 views
€39.90 €27.90
Linux Performance Tuning
A Practical Guide to Optimizing CPU, Memory, Disk, and Network Performance
792 views
€15.90 €12.90
Introduction to Linux Shell Scripting
Learn to Automate Tasks and Write Efficient Shell Scripts with Real-World Examples
785 views
€13.90 €9.90
Linux Job Interview Guide
Preparing for Linux System Administration and DevOps Interviews
775 views
€27.90 €17.90
Mastering PowerShell:
The Ultimate Beginner's Guide to Automation and Scripting
768 views
€28.90 €14.90
Python for Absolute Beginners
A Step-by-Step Introduction to Programming with Python
762 views
€29.90 €14.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 276+ practical digital books covering Linux administration, DevOps, cloud infrastructure, cybersecurity, Python programming, Windows Server, networking, and modern software engineering. Every title is hand-picked, reviewed for accuracy, and written by working engineers who use these tools every day in production environments. Whether you are preparing for a Red Hat, AWS, or Microsoft certification, hardening a Linux server, building a CI/CD pipeline, or learning a new scripting language, our catalog gives you battle-tested guidance you can apply immediately.
What makes our IT eBook collection different
Most online learning platforms lock content behind expensive monthly subscriptions or push outdated PDFs that were last updated years ago. We do the opposite: buy once, own forever, with free lifetime updates whenever a major edition is released. Every eBook ships in modern PDF and EPUB formats, is DRM-free, and works on any device — Linux, macOS, Windows, iPad, Kindle, or your favorite e-reader. Average price across the catalog is around €14, and we regularly offer curated bundles that drop the per-book price even lower.
Topics we cover in depth
- Linux & Unix: Bash scripting, systemd, package management, kernel internals, performance tuning, and distribution-specific guides for Ubuntu, Debian, RHEL, AlmaLinux, Arch, and Fedora.
- DevOps & SRE: Docker, Kubernetes, Terraform, Ansible, GitOps, CI/CD with GitHub Actions and GitLab, observability with Prometheus and Grafana, and incident response playbooks.
- Cloud Infrastructure: AWS, Azure, and Google Cloud architecture patterns, cost optimization, IAM hardening, serverless design, and multi-cloud strategies.
- Cybersecurity: Penetration testing, OSSEC, Wazuh, SELinux, AppArmor, network forensics, OWASP Top 10, secure coding, and Linux server hardening.
- Python & Automation: CLI tools, async programming, FastAPI, data engineering, infrastructure-as-code with Python, and AI/LLM integration.
- Windows Server & PowerShell: Active Directory, Group Policy, PowerShell automation modules, and hybrid Windows/Linux administration.
Why thousands of engineers choose Dargslan
Our readers include sysadmins, DevOps engineers, security analysts, software developers, IT students, and university lecturers across more than 60 countries. They choose Dargslan because every book is practical first, theoretical second — packed with real terminal sessions, working configuration files, copy-pasteable code, and architecture diagrams that reflect how systems actually run in production. We also offer free sample chapters on every book page so you can verify the quality before purchasing, plus a transparent 14-day refund policy if a book doesn't meet your expectations.
Instant access, secure checkout
Checkout takes under 30 seconds with Stripe or PayPal, and your download links are emailed instantly along with access from your account dashboard. All transactions use 256-bit SSL encryption, and we never store payment details on our servers. Need an invoice for your company or VAT reverse-charge inside the EU? Every order automatically generates a compliant PDF invoice with your company details.
Browse the catalog above, filter by category or price, or explore our bundle deals, best-book lists, free eBooks, and technical blog for in-depth articles, cheat sheets, and tutorials. New titles are added every month — subscribe to our newsletter to get a 20% launch discount on every new release.