All Books
271 books
AI Security
Securing Large Language Models, Machine Learning Systems, AI Agents, and Enterprise AI Infrastructure
104 views
€26.90
AI Engineering Fundamentals
Designing, Building, Deploying, and Operating Modern AI Applications
91 views
€18.90
RAG Fundamentals
Building Retrieval-Augmented Generation Applications with Large Language Models
85 views
€18.90
Hyper-V Virtualization
Designing, Deploying, and Managing Virtual Machines with Microsoft Hyper-V
683 views
€39.90 €27.90
Linux Web Server Setup
Installing, Configuring, and Managing Web Servers on Linux
678 views
€14.90 €11.90
Linux Performance Tuning
A Practical Guide to Optimizing CPU, Memory, Disk, and Network Performance
661 views
€15.90 €12.90
Introduction to Linux Shell Scripting
Learn to Automate Tasks and Write Efficient Shell Scripts with Real-World Examples
658 views
€13.90 €9.90
Linux Job Interview Guide
Preparing for Linux System Administration and DevOps Interviews
656 views
€27.90 €17.90
Linux Firewall Configuration
Practical Firewall Setup, Hardening, and Troubleshooting for Linux Systems
642 views
€17.90 €12.90
PowerShell: Hyper-V Virtualization
Automating, Managing, and Scaling Hyper-V with PowerShell
636 views
€41.90 €29.90
Python for Absolute Beginners
A Step-by-Step Introduction to Programming with Python
627 views
€29.90 €14.90
Cybersecurity Fundamentals
Core Security Concepts for IT, System Administration, and Modern Infrastructure
618 views
€34.90 €24.90
SELinux & AppArmor Guide
Practical Mandatory Access Control for Securing Linux Systems
602 views
€21.90 €16.90
Linux Security Hardening
A Practical Guide to Securing Linux Systems in Production
599 views
€18.90 €14.90
Linux Administration Fundamentals
A Practical Beginner-to-Intermediate Guide for Managing Linux Systems
593 views
€12.90 €9.90
AWS for Linux Administrators
Operating, Securing, and Managing Linux Systems on Amazon Web Services
588 views
€36.90 €26.90
Mastering PowerShell:
The Ultimate Beginner's Guide to Automation and Scripting
586 views
€28.90 €14.90
Windows Server 2025: Manage with PowerShell
Automating Administration, Configuration, and Monitoring Tasks on Windows Server 2025 Using PowerShell
583 views
€17.90 €14.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 271+ 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.