IT eBooks Under €15
159 books
Kubernetes Networking & Service Mesh
Designing Secure, Scalable, and Observable Network Architectures for Cloud-Native Systems
167 views
€24.90 €12.90
Docker Security & Production Hardening
Securing Containerized Applications in Real-World Environments
167 views
€19.90 €12.90
Linux Backup Automation with rsync & Borg
Designing Secure, Efficient, and Fully Automated Backup Systems on Linux
166 views
€23.90 €14.90
Linux High Availability & Clustering
Designing, Deploying, and Managing Fault-Tolerant Linux Infrastructure
166 views
€20.90 €10.90
Linux Patch Management & System Updates
Securing, Automating, and Maintaining Enterprise Linux Systems
166 views
€19.90 €13.90
Linux Disk Management & RAID Configuration
Designing, Configuring, and Maintaining Reliable Storage Systems on Linux
166 views
€23.90 €12.90
PostgreSQL for Developers: Queries, Functions & Triggers
Writing Efficient SQL, Building Server-Side Logic, and Optimizing Database Workflows
164 views
€16.90 €11.90
Secure Web Hosting with AlmaLinux 9
Hardened Apache, Nginx, Firewall, Fail2Ban, and SSL Setup Guide
164 views
€26.90 €13.90
LFCS Exam Prep: Linux Foundation Certified Sysadmin
Hands-On Preparation Guide for the Linux Foundation System Administrator Certification
163 views
€18.90 €12.90
LVM & ZFS: Linux Storage Management
Designing, Managing, and Protecting Data on Modern Linux Systems
163 views
€24.90 €12.90
Docker Networking & Storage Deep Dive
Advanced Container Connectivity, Volumes, and Persistent Data Architecture
162 views
€23.90 €14.90
Linux+ CompTIA Certification Guide
Comprehensive Exam Preparation for the CompTIA Linux+ Certification
162 views
€19.90 €10.90
Linux File System & Permissions Deep Dive
Understanding Storage Architecture, Ownership Models, and Advanced Access Control
162 views
€16.90 €11.90
C# Fundamentals for System Administrators
Building Practical Tools and Automation Utilities with .NET and C\#
162 views
€24.90 €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
161 views
€14.90 €9.90
Python Barcodes: A Comprehensive Guide to Understanding, Generating, and Decoding
160 views
€18.90 €9.90
CodeIgniter Framework Fundamentals
Building Fast and Lightweight PHP Applications with Clean MVC Architecture
159 views
€22.90 €12.90
Linux Cron Jobs & Task Scheduling Fundamentals
Automating System Tasks, Maintenance, and Workflows on Linux
157 views
€18.90 €10.90
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.