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-59% 250 Linux Exercises

250 Linux Exercises

Practical Challenges for Command Line Mastery and System Administration

by CloudMatrix Editorial Team

1,816 views

โ‚ฌ29.00 โ‚ฌ12.00

-23% Linux Networking Fundamentals

Linux Networking Fundamentals

A Beginnerโ€™s Guide to Network Configuration, Tools, and Troubleshooting in Linux

by Dargslan Editorial Team (Dargslan)

827 views

โ‚ฌ12.90 โ‚ฌ9.90

-23% Linux Security Essentials

Linux Security Essentials

Fundamentals of Securing Linux Systems, Users, and Services

by Miles Everhart

769 views

โ‚ฌ12.90 โ‚ฌ9.90

-35% Network Fundamentals

Network Fundamentals

Core Networking Concepts for IT, System Administration, and Security

by Ethan Marshall

751 views

โ‚ฌ19.90 โ‚ฌ12.90

-43% LPIC-1 Exam Prep

LPIC-1 Exam Prep

Essential Linux Skills for the LPIC-1 (101 & 102) Certification Exams

by Bas van den Berg

708 views

โ‚ฌ34.90 โ‚ฌ19.90

-20% Linux Troubleshooting Techniques

Linux Troubleshooting Techniques

A Practical Guide to Diagnosing and Resolving Common Linux System Issues

by Miles Everhart

692 views

โ‚ฌ14.90 โ‚ฌ11.90

-19% Linux DNS & DHCP Services

Linux DNS & DHCP Services

Designing, Configuring, and Operating DNS and DHCP Infrastructure on Linux

by Bas van den Berg

655 views

โ‚ฌ15.90 โ‚ฌ12.90

-32% Python and SQLite: Small DB Apps

Python and SQLite: Small DB Apps

A Practical Guide to Building Lightweight Database Applications

by Edward Carrington

600 views

โ‚ฌ24.90 โ‚ฌ16.90

-27% Docker Fundamentals

Docker Fundamentals

A Practical Introduction to Containerization with Docker

by Dorian Thorne

582 views

โ‚ฌ32.90 โ‚ฌ23.90

-30% OpenSSH Configuration & Tunneling Guide

OpenSSH Configuration & Tunneling Guide

Secure Configuration, Hardening, and Advanced SSH Tunneling Techniques

by Bas van den Berg

574 views

โ‚ฌ26.90 โ‚ฌ18.90

-20% Linux Operating System: The Complete Guide

Linux Operating System: The Complete Guide

A Comprehensive Journey Through Linux Architecture, Commands, Filesystems, User Management, Networking, Security, and System Administration

by Dargslan Editorial Team (Dargslan)

569 views

โ‚ฌ14.90 โ‚ฌ11.90

-38% Linux User & Group Management

Linux User & Group Management

Managing Accounts, Permissions, and Access Control in Linux Systems

by Bas van den Berg

566 views

โ‚ฌ20.90 โ‚ฌ12.90

-19% Ubuntu Server Administration

Ubuntu Server Administration

Installing, Configuring, and Managing Ubuntu Server in Production Environments

by Bas van den Berg

555 views

โ‚ฌ15.90 โ‚ฌ12.90

-30% PostgreSQL Database Setup: The Complete Guide

PostgreSQL Database Setup: The Complete Guide

From Installation to Configuration, Security, and Optimization

by Thomas Ellison

549 views

โ‚ฌ39.90 โ‚ฌ27.90

-25% Linux Security Auditing

Linux Security Auditing

Monitoring, Auditing, and Verifying the Security of Linux Systems

by Bas van den Berg

549 views

โ‚ฌ19.90 โ‚ฌ14.90

-33% Linux Virtualization Stack: QEMU, KVM, libvirt, and virt-manager

Linux Virtualization Stack: QEMU, KVM, libvirt, and virt-manager

From Bare Metal to Virtual Machines - A Comprehensive Guide to Linux-Based Virtualization

by Dargslan Editorial Team (Dargslan)

539 views

โ‚ฌ29.90 โ‚ฌ19.90

-33% Master Linux Command Line in 30 Comprehensive Chapters

Master Linux Command Line in 30 Comprehensive Chapters

Master Linux Command Line in 30 Comprehensive Chapters

by Darky

530 views

โ‚ฌ29.90 โ‚ฌ19.90

-22% Linux System Administration for Beginners

Linux System Administration for Beginners

A Practical Step-by-Step Guide to Managing Linux Servers, Users, Filesystems, and Services

by Miles Everhart

527 views

โ‚ฌ13.90 โ‚ฌ10.90

-23% Active Directory Fundamentals

Active Directory Fundamentals

Core Concepts, Architecture, and Administration of Active Directory

by Even R. Whitlock

516 views

โ‚ฌ12.90 โ‚ฌ9.90

-42% Bash Mastery 2026

Bash Mastery 2026

Advanced Shell Scripting, Automation, and Production Practices

by Miles Everhart

506 views

โ‚ฌ25.90 โ‚ฌ14.90

API Basics: REST & JSON Explained

API Basics: REST & JSON Explained

Understanding Web APIs, REST Principles, and JSON Data Exchange

by Edward Carrington

504 views

โ‚ฌ9.90

-46% RHCSA EX200 Exam Prep 2026

RHCSA EX200 Exam Prep 2026

Hands-On Practice Guide for Red Hat Enterprise Linux Certification

by Miles Everhart

500 views

โ‚ฌ23.90 โ‚ฌ12.90

-35% Windows Terminal & CLI Fundamentals

Windows Terminal & CLI Fundamentals

Mastering Command Line Tools for Modern Windows Administration

by Even R. Whitlock

491 views

โ‚ฌ19.90 โ‚ฌ12.90

Premium IT & Linux eBooks for Professionals

Welcome to the Dargslan eBook library โ€” a curated collection of 271+ 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 โ€” 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 โ€” 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 โ€” subscribe to our newsletter to get a 20% launch discount on every new release.