IT eBooks Under €15
161 books
Linux Operating System: The Complete Guide
A Comprehensive Journey Through Linux Architecture, Commands, Filesystems, User Management, Networking, Security, and System Administration
299 views
€14.90 €11.90
AlmaLinux Hosting Mastery
A Practical Step-by-Step Guide to Deploying, Securing, and Managing Web Servers on AlmaLinux 9
296 views
€19.90 €12.90
Prompt Engineering Mastery
Designing Reliable, High-Quality Prompts for AI Systems
296 views
€19.90 €10.99
C# Fundamentals for System Administrators
Building Practical Tools and Automation Utilities with .NET and C\#
287 views
€24.90 €12.90
Kubernetes Security & Best Practices
Hardening, Governance, and Secure Operations in Production Clusters
286 views
€23.90 €14.90
Debian Security and Hardening
Secure your Debian systems with firewalls, permissions, and updates
281 views
€16.90 €9.90
PostgreSQL Security & Access Control
Hardening, Authentication, Authorization, and Compliance in Production Environments
281 views
€18.90 €11.90
Python Programming: A Comprehensive Beginner's Guide with 200 Practice Exercises
278 views
€19.90 €9.90
RHCSA EX200 Exam Prep 2026
Hands-On Practice Guide for Red Hat Enterprise Linux Certification
278 views
€23.90 €12.90
PostgreSQL Backup, Replication & High Availability
Designing Resilient, Fault-Tolerant, and Disaster-Ready PostgreSQL Systems
278 views
€18.90 €12.90
Kubernetes Networking & Service Mesh
Designing Secure, Scalable, and Observable Network Architectures for Cloud-Native Systems
277 views
€24.90 €12.90
Prompt Engineering for Developers
Designing Precise, Testable, and Production-Ready AI Instructions for Modern Software Engineering
276 views
€14.90 €8.90
Laravel Framework Fundamentals
Building Modern PHP Applications with Clean Architecture and Best Practices
275 views
€18.90 €11.90
Docker for Web Developers
Containerizing, Building, and Deploying Modern Web Applications
273 views
€23.90 €13.90
IT Infrastructure Management
Designing, Operating, and Optimizing Modern IT Environments
272 views
€27.00 €12.90
System Administration Fundamentals
Core Skills for Managing Modern IT Infrastructure
272 views
€24.00 €12.00
AlmaLinux 9 + NGINX + PHP-FPM
Building, Securing, and Optimizing a High-Performance Linux Web Server
271 views
€19.90 €12.90
Ubuntu 24.04 LTS Server Administration
Deploying, Securing, and Managing Modern Ubuntu Servers in Production
271 views
€22.90 €12.90
Linux User & Group Management
Managing Accounts, Permissions, and Access Control in Linux Systems
270 views
€20.90 €12.90
Hands-On Azure PowerShell Lab Workbook
60 Automation Scenarios for Managing, Automating, and Securing Azure with PowerShell (Az Module)
268 views
€10.90 €8.90
LVM & ZFS: Linux Storage Management
Designing, Managing, and Protecting Data on Modern Linux Systems
268 views
€24.90 €12.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 161+ 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.