All Books
252 books
Active Directory Fundamentals
Core Concepts, Architecture, and Administration of Active Directory
457 views
€12.90 €9.90
API Basics: REST & JSON Explained
Understanding Web APIs, REST Principles, and JSON Data Exchange
451 views
€9.90
Master Linux Command Line in 30 Comprehensive Chapters
Master Linux Command Line in 30 Comprehensive Chapters
443 views
€29.90 €19.90
Linux Permissions
Understanding Ownership, Access Control, and Security on Linux Systems
417 views
€18.90 €12.90
Windows Terminal & CLI Fundamentals
Mastering Command Line Tools for Modern Windows Administration
413 views
€19.90 €12.90
Linux Backup Automation with rsync & Borg
Designing Secure, Efficient, and Fully Automated Backup Systems on Linux
409 views
€23.90 €14.90
Docker for Web Developers
Containerizing, Building, and Deploying Modern Web Applications
408 views
€23.90 €13.90
PostgreSQL for Developers: Queries, Functions & Triggers
Writing Efficient SQL, Building Server-Side Logic, and Optimizing Database Workflows
403 views
€16.90 €11.90
Linux File System & Permissions Deep Dive
Understanding Storage Architecture, Ownership Models, and Advanced Access Control
401 views
€16.90 €11.90
Bug Bounty Hunting: From Beginner to Pro
The Ultimate Guide to Modern Recon, Web Hacking, and Scalable Automation in 2026
371 views
€32.90 €21.90
Regex Mastery for System Administrators
Practical Pattern Matching for Logs, Configs, and Automation Workflows
369 views
€21.90 €10.90
Linux File Management and Permissions
A Professional Guide to Files, Ownership, and Secure Access Control - Volume 2
271 views
€10.90 €5.90
CCNA 200-301 Complete Study Guide (2026 Edition)
Complete Exam Preparation with Hands-On Labs, Troubleshooting, and Practice Questions
118 views
€15.90
CCNA 200-301 Hands-On Lab Workbook (2026 Edition)
80 Practical Labs, Packet Tracer Exercises, Configuration Challenges & Troubleshooting Scenarios
108 views
€14.90
Mastering Python Software Development
Advance from intermediate Python to professional software development. Master clean code, testing, APIs, concurrency, databases, packaging, and DevOps.
627 views
€18.90 €8.90
Linux Web Server Setup
Installing, Configuring, and Managing Web Servers on Linux
587 views
€14.90 €11.90
Linux Performance Tuning
A Practical Guide to Optimizing CPU, Memory, Disk, and Network Performance
587 views
€15.90 €12.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 252+ 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.