IT eBooks Under €15
172 books
Linux Performance Tuning
A Practical Guide to Optimizing CPU, Memory, Disk, and Network Performance
555 views
€15.90 €12.90
Linux Web Server Setup
Installing, Configuring, and Managing Web Servers on Linux
549 views
€14.90 €11.90
Mastering Python Software Development
Advance from intermediate Python to professional software development. Master clean code, testing, APIs, concurrency, databases, packaging, and DevOps.
545 views
€18.90 €8.90
Python for Absolute Beginners
A Step-by-Step Introduction to Programming with Python
532 views
€29.90 €14.90
Introduction to Linux Shell Scripting
Learn to Automate Tasks and Write Efficient Shell Scripts with Real-World Examples
532 views
€13.90 €9.90
Linux Firewall Configuration
Practical Firewall Setup, Hardening, and Troubleshooting for Linux Systems
517 views
€17.90 €12.90
Mastering PowerShell:
The Ultimate Beginner's Guide to Automation and Scripting
510 views
€28.90 €14.90
Linux Security Hardening
A Practical Guide to Securing Linux Systems in Production
501 views
€18.90 €14.90
Windows Server 2025: Manage with PowerShell
Automating Administration, Configuration, and Monitoring Tasks on Windows Server 2025 Using PowerShell
497 views
€17.90 €14.90
Linux Administration Fundamentals
A Practical Beginner-to-Intermediate Guide for Managing Linux Systems
486 views
€12.90 €9.90
AI-Assisted Coding Foundations
A Practical Developer’s Guide to Writing Better, Faster, and Smarter Code with AI Pair Programming
477 views
€15.90 €8.90
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
474 views
€14.90 €9.90
Ubuntu Server Administration
Installing, Configuring, and Managing Ubuntu Server in Production Environments
473 views
€15.90 €12.90
Linux System Hardening
A Step-by-Step Guide to Securing Your Linux Servers and Workstations
470 views
€17.90 €13.90
Windows Server 2025 Administration
Installing, Securing, and Managing Modern Windows Server Infrastructure
467 views
€16.90 €13.90
Firewall Configuration: The Complete Guide
Mastering Linux Firewalls with iptables, firewalld, nftables, and UFW for Local, Server, and Cloud Security
463 views
€18.90 €14.90
Linux File Server with Samba
Building, Securing, and Managing Samba File Servers for Linux and Windows Environments
461 views
€15.90 €12.90
Windows PKI & Certificates
Designing, Deploying, and Managing Certificate Services in Windows Environments
458 views
€17.90 €14.90
Debian System Administration
Stable, Secure, and Long-Term Management of Debian Linux Systems Author:
457 views
€15.90 €12.90
Docker Compose & Multi-Container Applications
Designing, Running, and Managing Containerized Applications with Docker Compose
456 views
€24.00 €13.90
Btrfs Filesystem Guide
Modern Linux Filesystem Management with Snapshots, Subvolumes, and Reliability
455 views
€19.90 €13.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 172+ 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.