All Books
276 books
AI Security Fundamentals
Protecting AI Systems, Large Language Models, and Machine Learning Infrastructure
239 views
€23.90
Linux Networking Fundamentals
A Beginner’s Guide to Network Configuration, Tools, and Troubleshooting in Linux
956 views
€12.90 €9.90
Network Fundamentals
Core Networking Concepts for IT, System Administration, and Security
900 views
€19.90 €12.90
Linux Security Essentials
Fundamentals of Securing Linux Systems, Users, and Services
892 views
€12.90 €9.90
Linux Troubleshooting Techniques
A Practical Guide to Diagnosing and Resolving Common Linux System Issues
837 views
€14.90 €11.90
Linux Web Server Setup
Installing, Configuring, and Managing Web Servers on Linux
816 views
€14.90 €11.90
LPIC-1 Exam Prep
Essential Linux Skills for the LPIC-1 (101 & 102) Certification Exams
810 views
€34.90 €19.90
Linux DNS & DHCP Services
Designing, Configuring, and Operating DNS and DHCP Infrastructure on Linux
771 views
€15.90 €12.90
Python and SQLite: Small DB Apps
A Practical Guide to Building Lightweight Database Applications
715 views
€24.90 €16.90
OpenSSH Configuration & Tunneling Guide
Secure Configuration, Hardening, and Advanced SSH Tunneling Techniques
713 views
€26.90 €18.90
Docker Fundamentals
A Practical Introduction to Containerization with Docker
710 views
€32.90 €23.90
Apache Fundamentals
Web Server Configuration, Virtual Hosts, and Core Administration
698 views
€27.90 €19.90
Linux Operating System: The Complete Guide
A Comprehensive Journey Through Linux Architecture, Commands, Filesystems, User Management, Networking, Security, and System Administration
695 views
€14.90 €11.90
PostgreSQL Database Setup: The Complete Guide
From Installation to Configuration, Security, and Optimization
690 views
€39.90 €27.90
Linux User & Group Management
Managing Accounts, Permissions, and Access Control in Linux Systems
675 views
€20.90 €12.90
Ubuntu Server Administration
Installing, Configuring, and Managing Ubuntu Server in Production Environments
672 views
€15.90 €12.90
Linux Security Auditing
Monitoring, Auditing, and Verifying the Security of Linux Systems
667 views
€19.90 €14.90
Active Directory Fundamentals
Core Concepts, Architecture, and Administration of Active Directory
653 views
€12.90 €9.90
Linux Virtualization Stack: QEMU, KVM, libvirt, and virt-manager
From Bare Metal to Virtual Machines - A Comprehensive Guide to Linux-Based Virtualization
652 views
€29.90 €19.90
Master Linux Command Line in 30 Comprehensive Chapters
Master Linux Command Line in 30 Comprehensive Chapters
650 views
€29.90 €19.90
Linux System Administration for Beginners
A Practical Step-by-Step Guide to Managing Linux Servers, Users, Filesystems, and Services
650 views
€13.90 €10.90
Bug Bounty Hunting: From Beginner to Pro
The Ultimate Guide to Modern Recon, Web Hacking, and Scalable Automation in 2026
633 views
€32.90 €21.90
Premium IT & Linux eBooks for Professionals
Welcome to the Dargslan eBook library — a curated collection of 276+ 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.