IT eBooks Under €15
159 books
Btrfs Filesystem Guide
Modern Linux Filesystem Management with Snapshots, Subvolumes, and Reliability
209 views
€19.90 €13.90
Bash Mastery 2026
Advanced Shell Scripting, Automation, and Production Practices
208 views
€25.90 €14.90
AlmaLinux Hosting Mastery
A Practical Step-by-Step Guide to Deploying, Securing, and Managing Web Servers on AlmaLinux 9
207 views
€19.90 €12.90
ChatGPT for Developers
Using AI to Write Better Code, Debug Faster, and Boost Developer Productivity
206 views
€17.90 €14.90
Network Fundamentals
Core Networking Concepts for IT, System Administration, and Security
206 views
€19.90 €12.90
n8n CLI for Beginners
Running, Managing, and Automating n8n from the Command Line
205 views
€18.90 €11.90
Linux Security Auditing
Monitoring, Auditing, and Verifying the Security of Linux Systems
205 views
€19.90 €14.90
PowerShell Essentials for Windows Server 2025
Master the Fundamentals of Scripting and Automation for Modern Server Management
204 views
€9.90 €7.90
Windows PKI & Certificates
Designing, Deploying, and Managing Certificate Services in Windows Environments
203 views
€17.90 €14.90
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
201 views
€14.90 €9.90
Linux System Hardening
A Step-by-Step Guide to Securing Your Linux Servers and Workstations
201 views
€17.90 €13.90
Windows Server 2025 Administration
Installing, Securing, and Managing Modern Windows Server Infrastructure
200 views
€16.90 €13.90
Linux Web Server Setup
Installing, Configuring, and Managing Web Servers on Linux
200 views
€14.90 €11.90
Kubernetes for Production: Scaling & Monitoring
Operating, Scaling, and Observing Real-World Kubernetes Clusters
198 views
€22.90 €13.90
Linux Command Line Mastery
From Absolute Basics to Confident Daily Command-Line Usage
197 views
€11.90 €8.90
Active Directory Fundamentals
Core Concepts, Architecture, and Administration of Active Directory
195 views
€12.90 €9.90
Linux Operating System: The Complete Guide
A Comprehensive Journey Through Linux Architecture, Commands, Filesystems, User Management, Networking, Security, and System Administration
194 views
€14.90 €11.90
Debian System Administration
Stable, Secure, and Long-Term Management of Debian Linux Systems Author:
193 views
€15.90 €12.90
SQL for Absolute Beginners
A Step-by-Step Introduction to Databases and Querying Data
192 views
€9.90
VS Code Mastery
Boosting Productivity with Visual Studio Code for Developers and IT Professionals
190 views
€9.90
Linux System Administration Handbook
A Practical Reference for Managing, Securing, and Maintaining Linux Systems
190 views
€16.90 €13.90
AlmaLinux 9 + NGINX + PHP-FPM
Building, Securing, and Optimizing a High-Performance Linux Web Server
186 views
€19.90 €12.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 159+ 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.