IT eBooks Under €15
183 books
C# Fundamentals for System Administrators
Building Practical Tools and Automation Utilities with .NET and C\#
507 views
€24.90 €12.90
PostgreSQL Security & Access Control
Hardening, Authentication, Authorization, and Compliance in Production Environments
504 views
€18.90 €11.90
Debugging & Refactoring with AI
Systematic Problem Solving, Code Modernization, and Technical Debt Reduction Using AI-Assisted Engineering
503 views
€16.90 €9.90
Python Barcodes: A Comprehensive Guide to Understanding, Generating, and Decoding
503 views
€18.90 €9.90
Scripting for IT Professionals
Practical Automation and Task Management with Bash, PowerShell, and Python
502 views
€24.90 €13.90
Rocky Linux 9 Administration
Deploying, Securing, and Managing Enterprise Linux Systems
501 views
€23.90 €13.90
Linux Patch Management & System Updates
Securing, Automating, and Maintaining Enterprise Linux Systems
500 views
€19.90 €13.90
Docker Networking & Storage Deep Dive
Advanced Container Connectivity, Volumes, and Persistent Data Architecture
497 views
€23.90 €14.90
PowerShell for Azure Administration
Automating, Managing, and Securing Microsoft Azure with PowerShell
494 views
€24.90 €14.90
NFS & iSCSI: Linux Network Storage
Designing, Deploying, and Securing Network-Based Storage Infrastructure on Linux
492 views
€18.90 €12.90
OpenAI API Mastery with Python: A Practical Workbook
100+ Hands-On Exercises, Real-World Projects, and Prompt Engineering Challenges for Developers and AI Enthusiasts
490 views
€14.90 €9.90
SQLite Fundamentals
Lightweight Embedded Database Design and Development for Modern Applications
486 views
€19.90 €12.90
Docker Swarm: Container Orchestration
Building, Scaling, and Managing Production-Ready Container Clusters
486 views
€22.90 €13.90
Flask Fundamentals (Python)
Building Lightweight and Flexible Web Applications with Flask
484 views
€22.90 €14.90
React Fundamentals
Building Modern, Component-Based Web Applications with React
482 views
€19.90 €12.90
LFCS Exam Prep: Linux Foundation Certified Sysadmin
Hands-On Preparation Guide for the Linux Foundation System Administrator Certification
481 views
€18.90 €12.90
Next.js Fundamentals
Building Production-Ready React Applications with Server-Side Rendering and Modern Web Architecture
477 views
€18.90 €12.90
AWS EC2 & VPC for Linux Administrator
Deploying, Securing, and Managing Linux Infrastructure on Amazon Web Services
476 views
€19.90 €13.90
System Design with AI Support
Designing Scalable, Reliable, and Intelligent Architectures with AI as Your Co-Pilot
472 views
€15.90 €7.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 183+ 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.