Free Sample Chapters
Preview any book before you buy. Enter your email to get instant access to free sample chapters from our entire collection.
250 Linux Exercises
Linux FundamentalsMaster the Linux command line through 250 hands-on exercises. Learn file management, networking, security, scripting, and system administration with real-world Linux challenges.
Active Directory Fundamentals
Active DirectoryLearn Active Directory fundamentals from the ground up. Understand domains, forests, authentication, Group Policy, security, and daily administration with clear explanations and real-world examples.
AI-Assisted Coding Foundations
DATA & AILearn how to code smarter with AI. Master prompt engineering, AI pair programming workflows, debugging, test generation, system design, security, and performance optimization in the AI-augmented developer era.
AI-Augmented Full-Stack Development
DATA & AIBuild production-ready full-stack systems with AI as your pair programmer. Master frontend, backend, APIs, databases, security, CI/CD, and observability.
AlmaLinux 9 for Web Hosting Beginners
RHEL / AlmaLinuxLearn how to set up and secure a complete web hosting environment on AlmaLinux 9. Install Apache, Nginx, PHP, MariaDB, SSL, and harden your VPS step by step.
AlmaLinux 9 + NGINX + PHP-FPM
RHEL / AlmaLinuxStep-by-step guide to building a secure, high-performance PHP production stack on AlmaLinux 9 with NGINX and PHP-FPM. Learn installation, optimization, security hardening, SSL, scaling, monitoring, and production best practices.
AlmaLinux for Beginners
RHEL / AlmaLinuxA beginner-friendly guide to AlmaLinux that teaches enterprise Linux fundamentals, system administration basics, and real-world server management skills.
AlmaLinux Hosting Mastery
RHEL / AlmaLinuxDeploy, secure, and scale professional web hosting servers on AlmaLinux 9. Apache, NGINX, MariaDB, SSL, hardening, backups, and production best practices.
Ansible Automation: From Zero to Production
DEVOPS & INFRASTRUCTUREMaster Ansible automation from basics to production. Learn playbooks, roles, security, scaling, and CI/CD integration with real-world examples.
Apache Fundamentals
Linux ServersWeb Server Configuration, Virtual Hosts, and Core Administration
API Basics: REST & JSON Explained
Web DevelopmentLearn API basics from scratch. Understand REST principles, HTTP methods, and JSON data exchange with clear explanations and real-world examples—no prior programming experience required.
Learn how to automate Microsoft 365 using Python and Microsoft Graph API. Build real-world apps for Outlook, Teams, SharePoint, and OneDrive.
AWS EC2 & VPC for Linux Administrator
AWS (Amazon Web Services)Deploy, secure, and manage Linux infrastructure on AWS. Master EC2, VPC design, EBS, security hardening, monitoring, and production-ready cloud operations.
AWS for Linux Administrators
AWS (Amazon Web Services)Learn how to run, secure, and scale Linux systems on AWS. Practical guide for Linux administrators transitioning to cloud operations.
AWS Lambda & Serverless for Beginners
AWS (Amazon Web Services)Learn AWS Lambda and serverless from scratch. Build event-driven APIs, automate deployments, manage IAM permissions, and run scalable cloud functions without servers.
Azure Active Directory (Microsoft Entra ID)
Azure (Microsoft Azure)Master Microsoft Entra ID (Azure Active Directory) for cloud identity and access management. Learn users, roles, conditional access, hybrid identity, and enterprise security best practices.
Azure for System Administrators
Azure (Microsoft Azure)A practical guide for system administrators to operate, secure, and manage infrastructure in Microsoft Azure with real-world scenarios.
Azure Virtual Machines & Networking Fundamentals
Azure (Microsoft Azure)Deploy, secure, and manage Azure Virtual Machines and VNets with confidence. Learn networking, security, availability, automation, and production-ready cloud operations.
Bash Book
ScriptingMaster Bash scripting from fundamentals to advanced automation. Learn CLI efficiency, text processing, system administration, networking, and secure scripting.
Bash Book
ScriptingMaster modern Bash scripting for automation, DevOps, cloud, and AI-assisted workflows. Build secure, portable, and production-ready shell scripts.
BASH Fundamentals
Bash / ShellLearn Linux command line fundamentals and Bash scripting from scratch. Navigate files, automate tasks, and write reliable shell scripts for real-world Linux systems.
Bash Mastery 2026
Bash / ShellBash Mastery 2026 teaches developers and DevOps engineers how to write reliable, secure, production-ready Bash scripts. Move beyond fragile one-liners and master Bash as a real programming language.
Bash vs PowerShell: Cross-Platform Scripting
Cross-PlatformCompare Bash and PowerShell side by side and learn how to write reliable cross-platform scripts across Linux, Windows, and cloud environments with real-world examples.
Becoming an AI-Driven Senior Engineer
DATA & AIBecome an AI-driven senior engineer. Master technical judgment, leadership, system thinking, and AI-augmented workflows to accelerate career growth.
Btrfs Filesystem Guide
Linux StorageMaster the Btrfs filesystem on Linux. Learn snapshots, subvolumes, data integrity, RAID, and real-world maintenance strategies with practical, production-ready examples.
Learn how to build real production-ready applications with AI pair programming. Master architecture, testing, DevOps, security, performance, scaling, and AI-assisted code reviews from prototype to deployment.
Build practical sysadmin tools with C# and .NET. Learn fundamentals through real admin tasks: files, processes, CLI utilities, APIs, cloud automation, and safe error handling.
ChatGPT for Developers
DATA & AIUsing AI to Write Better Code, Debug Faster, and Boost Developer Productivity
Write cleaner, more maintainable Python code. Learn Pythonic thinking, naming conventions, function design, testing, refactoring, performance optimization, and professional code review practices.
Cloud Computing Basics
CLOUD COMPUTINGLearn cloud computing fundamentals. Understand cloud models, infrastructure, security, and services to start your journey into modern cloud environments.
Learn CodeIgniter 4 from scratch. Master MVC architecture, routing, CRUD, authentication, REST APIs, security, testing, and deployment for fast PHP applications.
Cybersecurity Fundamentals
CyberSecurityLearn core cybersecurity concepts. Understand threats, defenses, identity, network security, incident response, and modern infrastructure protection.
Database Design & Modeling Fundamentals
DATABASESMaster database design from concept to production schema. Learn ER modeling, normalization, keys, constraints, indexing, query-aware design, scalability, and real-world case studies for modern applications.
Debian Linux for Absolute Beginners
Debian / UbuntuA beginner-friendly, step-by-step introduction to Debian Linux. Learn how to install, use, and maintain Debian with no prior Linux experience required.
Debian Security and Hardening
Debian / UbuntuHarden your Debian systems with practical, distribution-specific security guidance. Learn firewalls, SSH protection, permissions, AppArmor, updates, and auditing—using Debian-native tools and real-world best practices.
Debian System Administration
Debian / UbuntuMaster Debian system administration for stable, secure production environments. Learn installation, APT, release management, systemd, networking, storage, security hardening, automation, backups, and long-term maintenance.
Debugging & Refactoring with AI
DATA & AIMaster systematic debugging, AI-assisted code analysis, safe refactoring, and technical debt reduction. Learn how to modernize legacy systems and solve complex software defects with structured AI workflows.
Django Fundamentals (Python)
PythonLearn Django from scratch and build secure, scalable web applications. Master models, ORM, views, templates, authentication, APIs, deployment, and production-ready backend development.
Learn how to design, run, and manage real-world multi-container applications using Docker Compose, with practical examples, best practices, and production-ready patterns.
Docker for Web Developers
DockerLearn Docker as a web developer. Containerize apps, build multi-service stacks with Compose, optimize Dockerfiles, debug containers, secure workflows, and deploy to production.
Docker Fundamentals
DockerLearn Docker from the ground up. Build, run, and manage containers, create Docker images, use Docker Compose, and deploy containerized apps confidently in real environments.
Master Docker networking and storage internals. Learn bridge, overlay, macvlan, volumes, storage drivers, persistent data architecture, troubleshooting, and production-ready container infrastructure design.
Learn how to secure Docker containers in production. Master image hardening, runtime security, secrets management, CI/CD protection, and container threat modeling.
Master Docker Swarm orchestration: cluster architecture, services, scaling, overlay networking, secrets, security, monitoring, and production-ready container cluster design.
Ethical Hacking & Penetration Testing
CyberSecurityLearn ethical hacking and penetration testing fundamentals, understand real-world attacks, test security responsibly, and turn findings into stronger defenses.
Exchange Online Management with PowerShell
PowerShellExchange Online Management with PowerShell teaches you how to manage, automate, and secure Microsoft 365 email environments using real-world PowerShell scripts and administrative best practices.
Fedora Fundamentals
RHEL / AlmaLinuxMaster Fedora Linux for desktop and server use. Learn DNF, systemd, SELinux, networking, filesystems, security, and real-world administration skills.
Firewall Configuration: The Complete Guide
Linux SecurityMaster Linux firewalls with iptables, firewalld, nftables, and UFW. Learn practical firewall rules for servers, workstations, cloud, Docker, Kubernetes, and real-world security scenarios.
Flask Fundamentals (Python)
PythonLearn Flask from scratch and build lightweight, flexible Python web apps. Master routing, templates, forms, databases, REST APIs, Blueprints, authentication, security, deployment, and production readiness.
Git & GitHub for Absolute Beginners
PROGRAMMING & DEVELOPMENTLearn Git and GitHub from scratch with a clear, beginner-friendly guide. Understand version control, repositories, commits, branches, and collaboration step by step-no prior experience required.
Group Policy Management
Active DirectoryMaster Group Policy design, implementation, and troubleshooting to manage and secure Windows environments at scale.
Hands-On Azure PowerShell Lab Workbook
PowerShellBuild real Azure automation skills with 60 hands-on PowerShell labs using the Az module. Deploy, secure, monitor, and manage Azure resources with repeatable scripts and end-to-end projects.
HTML & CSS Fundamentals
Web DevelopmentLearn HTML and CSS fundamentals. Build semantic, accessible web pages and responsive layouts while mastering the core structure of modern web development.
Hyper-V Virtualization
VirtualizationA practical guide to designing, deploying, securing, and automating Microsoft Hyper-V virtual machine environments.
Introduction to Linux Shell Scripting
Linux AdministrationLearn Linux shell scripting from the ground up. Automate tasks, process text and files, write clean Bash scripts, and build real-world projects with practical examples.
IT Infrastructure Management
System AdministrationA complete guide to designing, managing, securing, and scaling modern IT infrastructure across on-premises, cloud, and hybrid environments.
Learn Java programming from scratch. A beginner-friendly, step-by-step guide covering Java syntax, OOP, collections, exceptions, and real mini projects.
JavaScript ES6+ Modern Features
JavaScriptMaster modern JavaScript with ES6+ features, async patterns, modules, clean code principles, and professional best practices for production-ready development.
JavaScript Fundamentals
JavaScriptLearn modern JavaScript from the ground up. Master variables, functions, DOM manipulation, ES6+ features, and real-world coding practices with clear explanations and examples.
Learn how to scale, monitor, and operate Kubernetes clusters in production. Master autoscaling, high availability, observability, incident response, and SRE best practices.
Kubernetes Fundamentals
KubernetesLearn Kubernetes step by step. Deploy, scale, secure, and manage containerized applications using real Kubernetes workflows for development and production.
Kubernetes Networking & Service Mesh
KubernetesMaster Kubernetes networking, CNI, Services, Ingress, Network Policies, and Service Mesh. Design secure, scalable, and observable cloud-native architectures in production.
Kubernetes Security & Best Practices
KubernetesMaster Kubernetes security in production. Learn API hardening, RBAC design, pod security, network policies, supply chain protection, and DevSecOps best practices.
Learn Laravel from the ground up. Master routing, controllers, Blade, Eloquent ORM, authentication, APIs, testing, and deployment to build modern PHP applications.
LFCS Exam Prep: Linux Foundation Certified Sysadmin
Linux CertificationHands-on LFCS exam preparation guide. Practice real Linux system administration tasks, master performance-based objectives, and pass the Linux Foundation Certified System Administrator exam with confidence.
Linux Administration Fundamentals
Linux AdministrationLearn practical Linux system administration from beginner to intermediate level. Manage users, permissions, services, networking, security, and real-world Linux systems with confidence.
Linux Backup Automation with rsync & Borg
Linux StorageDesign secure, automated Linux backup systems using rsync and BorgBackup. Learn incremental backups, encryption, scheduling, monitoring, restore testing, and enterprise-ready backup strategies.
Linux Backup Strategies
Linux AdministrationLearn how to design, automate, and maintain reliable Linux backup strategies that actually work—covering planning, tooling, security, verification, and disaster recovery.
Linux Command Line Mastery
Linux AdministrationMaster the Linux command line from basics to real-world daily usage. Learn navigation, file management, permissions, processes, networking, and shell scripting with practical examples.
Linux+ CompTIA Certification Guide
Linux CertificationComprehensive Linux+ exam prep guide with hands-on practice, performance-based question training, troubleshooting labs, and full objective coverage for CompTIA Linux+ certification.
Linux Cron Jobs & Task Scheduling Fundamentals
Linux FundamentalsMaster Linux cron jobs and systemd timers to automate backups, maintenance, logging, and DevOps workflows. Learn secure, reliable, production-grade task scheduling on Linux.
Linux Disk Management & RAID Configuration
Linux StorageMaster Linux disk management and RAID configuration. Learn partitioning, filesystems, LVM, software RAID, performance tuning, and failure recovery for production systems.
Linux DNS & DHCP Services
Linux ServersDesign and run DNS & DHCP on Linux with BIND and DHCP server. Learn zones, records, dynamic DNS, security hardening, monitoring, troubleshooting, and scalable architectures.
Linux File Server with Samba
Linux ServersBuild a secure Samba file server on Linux and connect it seamlessly to Windows clients and Active Directory. Learn permissions, shares, security hardening, performance tuning, backups, and troubleshooting.
Linux File System & Permissions Deep Dive
Linux FundamentalsMaster Linux filesystems and permissions. Understand inodes, ext4/XFS/Btrfs, mounting, ACLs, special bits, SELinux interaction, and secure file structure design.
Linux Firewall Configuration
Linux SecurityPractical Linux firewall guide covering iptables, nftables, and firewalld. Learn secure rule design, hardening strategies, logging, cloud use cases, automation, and troubleshooting in real environments.
Linux for Absolute Beginners
Linux FundamentalsLearn Linux from scratch with a beginner-friendly, step-by-step guide. Master the Linux command line, file system, permissions, and core system concepts with practical examples.
Linux for Beginners: Zero to Hero
Linux FundamentalsStart your Linux journey from scratch. Learn Linux step by step with clear explanations, practical examples, and zero prior experience required.
Linux High Availability & Clustering
Linux ServersDesign and deploy fault-tolerant Linux clusters using Corosync, Pacemaker, and DRBD. Build highly available web and database services with fencing, quorum, and multi-site failover.
Linux Intrusion Detection with OSSEC & Wazuh
Linux SecurityDeploy and manage OSSEC and Wazuh on Linux. Implement host-based intrusion detection, file integrity monitoring, active response, SIEM integration, and scalable security monitoring.
Linux IPv4: The Complete Guide
Linux NetworkingLearn IPv4 networking on Linux from the ground up. Configure addresses, routing, DHCP, DNS, firewalls, NAT, containers, and troubleshoot real-world Linux networks.
Linux IPv6: The Complete Guide
Linux NetworkingMaster IPv6 networking on Linux. Learn addressing, routing, DNS, security, dual-stack setups, and troubleshooting with real Linux commands and configurations.
Linux Job Interview Guide
Linux CertificationPrepare confidently for Linux system administration and DevOps interviews with real-world questions, scenarios, hands-on tasks, and professional communication strategies.
Linux Mail Server Configuration
Linux ServersBuild and secure a production-ready Linux mail server with Postfix and Dovecot. Covers DNS, TLS, SPF/DKIM/DMARC, spam protection, monitoring, troubleshooting, and backups.
Linux Networking Fundamentals
Linux NetworkingLearn the fundamentals of Linux networking. Configure interfaces, IP addressing, DNS, routing, firewalls, and troubleshoot network issues step by step.
Linux Operating System: The Complete Guide
Linux FundamentalsA complete, in-depth Linux guide covering architecture, command line, filesystems, networking, security, and system administration. Ideal for serious learners and IT professionals.
Linux Patch Management & System Updates
Linux AdministrationMaster Linux patch management. Secure, automate, and maintain enterprise systems with APT, DNF, CVE analysis, kernel updates, live patching, compliance, and fleet-wide automation.
Linux Performance Tuning
Linux AdministrationOptimize Linux performance with practical tools and proven tuning techniques. Learn to diagnose bottlenecks and improve CPU, memory, disk I/O, and network performance in real systems.
Linux Permissions
Linux AdministrationMaster Linux permissions, ownership, ACLs, SUID/SGID, umask, and SELinux basics. Learn how to secure files, directories, services, and web servers with confidence
Linux Security Auditing
Linux SecurityA practical Linux security auditing guide covering system baselines, auditd, permissions, SELinux, AppArmor, firewall audits, automation, and compliance verification.
Linux Security Essentials
Linux SecurityLearn essential Linux security fundamentals. Secure users, permissions, authentication, services, firewalls, SELinux, logging, intrusion detection, updates, backups, and containers with practical examples.
Linux Security Hardening
Linux SecurityHarden Linux systems for production use. Learn kernel security, access control, SELinux, AppArmor, firewalling, logging, intrusion detection, automation, and incident response with practical examples.
Linux System Administration for Beginners
Linux AdministrationLearn Linux system administration step by step. Manage users, permissions, services with systemd, networking, storage, LVM, backups, monitoring, and server security with practical examples.
Linux System Administration Handbook
Linux AdministrationA professional Linux system administration handbook covering system management, security, automation, troubleshooting, and production best practices for real-world Linux environments.
Linux System Administration Masterclass
Linux AdministrationMaster Linux system administration from operational fundamentals to architectural excellence. Learn production-grade security, performance optimization, and enterprise infrastructure management with real-world scenarios used by senior Linux professionals.
Linux System Hardening
Linux SecuritySecure Linux systems step by step. Harden SSH, users, permissions, services, networking, logging, auditing, intrusion detection, containers, kernel settings, encryption, and compliance across major distributions.
Linux Terminal Basics
Linux FundamentalsLearn the Linux terminal from scratch. Master command-line navigation, file management, permissions, and essential shell commands with practical, beginner-friendly examples.
Linux Troubleshooting Techniques
Linux AdministrationDiagnose and fix Linux issues with a systematic approach. Learn to troubleshoot boot failures, services, filesystems, permissions, networking, performance, and common system errors across distributions.
Learn how to build, manage, and optimize Linux virtualization using QEMU, KVM, libvirt, and virt-manager from bare metal hosts to automated virtual machines.
Linux Virtualization with KVM and QEMU
VirtualizationLearn how to build, manage, and optimize virtual machines on Linux using KVM and QEMU, with practical examples, performance tuning, and automation techniques.
Linux Web Server Setup
Linux ServersLearn how to set up Linux web servers with Apache and Nginx. Configure virtual hosts, HTTPS with Let’s Encrypt, PHP integration, security best practices, and production-ready deployment.
LPIC-1 Exam Prep
Linux CertificationPrepare confidently for the LPIC-1 (101 & 102) exams with focused Linux theory, hands-on practice, exam strategies, and topic mappings aligned with official objectives.
LVM & ZFS: Linux Storage Management
Linux StorageMaster Linux storage management with LVM and ZFS. Learn modern volume design, snapshots, data protection, integrity, and production-ready storage architecture.
Machine Learning Fundamentals
DATA & AILearn machine learning from the ground up. Understand core concepts, data preparation, models, evaluation techniques, and real-world ML workflows-no advanced math required.
MariaDB Administration
MySQLLearn how to install, secure, optimize, and operate MariaDB in production. Covers performance tuning, backups, replication, monitoring, and real-world administration workflows.
MariaDB Fundamentals
MySQLLearn relational database fundamentals with MariaDB. A beginner-friendly, practical guide to SQL queries, database design, security, and real-world usage.
Mastering PowerShell:
PowerShellA complete beginner’s guide to PowerShell automation and scripting. Learn to write scripts, automate tasks, manage systems, and master PowerShell fundamentals step by step.
Master PowerShell automation from beginner to advanced. Learn scripting, modules, remoting, cloud automation, DevOps integration, error handling, and real-world automation projects.
Master PowerShell Remoting from setup to enterprise scale. Learn WinRM and SSH remoting, secure authentication, session management, troubleshooting, and real-world automation workflows.
Learn to handle JSON like a pro with Python. Parse, validate, transform, and exchange data with APIs, optimize performance, and build real-world projects using modern Python best practices.
Deep-dive Python OOP guide from fundamentals to advanced topics. Master classes, inheritance, polymorphism, design patterns, testing, refactoring, and metaclasses with practical examples and real-world projects.
Master modern Python OOP (Python 3.14) from fundamentals to advanced patterns: dataclasses, protocols, typing, pattern matching, async OOP, testing with pytest, performance tuning, and real-world case studies for clean, maintainable code.
Advance from intermediate Python to professional software development. Master clean code, testing, APIs, concurrency, databases, packaging, and DevOps.
Master Linux Command Line in 30 Comprehensive Chapters
Linux AdministrationA hands-on Linux command line workbook with 520 practical exercises across 30 chapters. Master Linux administration, scripting, networking, security, Docker, and DevOps fundamentals.
Microservices with Docker and Kubernetes
DEVOPS & INFRASTRUCTURELearn how to design, build, deploy, and operate cloud-native microservices using Docker and Kubernetes. A practical production-ready guide for modern DevOps teams.
Learn MongoDB from the ground up. Master documents, BSON, CRUD, indexing, aggregation pipelines, replica sets, sharding, security, and production deployment to build scalable NoSQL applications with confidence.
MySQL Fundamentals
MySQLLearn MySQL from scratch. Understand relational databases, write powerful SQL queries, and manage MySQL databases with practical, beginner-friendly examples.
n8n CLI for Beginners
AutomationLearn how to run, manage, and automate n8n using the command line. A beginner-friendly guide to n8n CLI, workflows, deployment, Docker, and automation best practices.
Network Fundamentals
NETWORKING & SECURITYBuild rock-solid networking fundamentals: OSI/TCP-IP, IP addressing, subnetting, protocols, devices, DNS/DHCP, troubleshooting, and security essentials—explained clearly with real-world examples.
Network Security Basics
NETWORKING & SECURITYLearn the fundamentals of network security, including traffic protection, firewalls, segmentation, monitoring, and defense against common network threats.
Network Security Fundamentals
NETWORKING & SECURITYLearn how modern networks are attacked and defended. Understand network threats, architecture, firewalls, encryption, monitoring, and defensive strategies used in real-world environments.
Next.js Fundamentals
Web DevelopmentLearn Next.js the practical way. Build production-ready React apps with file-based routing, layouts, SSG/SSR, modern data fetching, API routes, authentication basics, and deployment workflows.
NFS & iSCSI: Linux Network Storage
Linux StorageDesign, deploy, and secure NFS and iSCSI storage on Linux. Configure targets, initiators, LVM integration, virtualization storage, performance tuning, and production-ready security.
NGINX Fundamentals
Linux ServersLearn NGINX from the ground up. Configure web servers, set up reverse proxies, enable HTTPS, and optimize performance with practical examples.
Node.js Fundamentals
Web DevelopmentLearn Node.js from the ground up. Build modern backend applications with JavaScript, master asynchronous programming, create REST APIs with Express, connect databases, secure apps, and deploy production-ready servers.
Build real AI applications with Python using the OpenAI API. 100+ hands-on exercises, prompt engineering challenges, and real-world projects for developers and AI enthusiasts.
OpenSSH Configuration & Tunneling Guide
SSH & Remote AccessLearn how to securely configure, harden, and fully exploit OpenSSH, including advanced tunneling, port forwarding, automation, and enterprise-grade SSH practices.
Learn PHP from scratch. Understand syntax, variables, forms, databases, and build your first dynamic web applications step by step.
PHP Fundamentals
PHPA hands-on introduction to modern PHP for web development. Learn PHP fundamentals, database integration, and security best practices step by step.
Build real-world PHP & MySQL web applications. Learn secure database access, authentication, CRUD systems, clean architecture, and maintainable PHP code for production-ready websites.
Learn how to secure PHP applications against real-world attacks using proven best practices for validation, authentication, session handling, and defense-in-depth.
Master PostgreSQL administration and performance tuning. Learn internals, indexing, query optimization, HA, backups, security hardening, and scaling for production systems.
Design resilient PostgreSQL systems with reliable backups, streaming replication, WAL archiving, PITR, failover strategies, and high-availability architecture patterns.
Learn how to install, configure, secure, and optimize PostgreSQL from day one. A practical guide for developers, system administrators, and database professionals.
Master PostgreSQL as a developer. Write efficient SQL, use JSON and arrays, build PL/pgSQL functions, create triggers, and optimize queries for high-performance applications.
PostgreSQL Security & Access Control
PostgreSQLSecure PostgreSQL in production with authentication, pg_hba.conf, role-based access control, SSL/TLS, encryption, auditing, compliance, and hardening best practices.
PowerShell 7 Fundamentals
PowerShellA hands-on introduction to PowerShell 7 for modern automation and scripting across Windows, Linux, and macOS environments.
PowerShell 7.x and SQLite Fundamentals
PowerShellLearn how to use SQLite as a lightweight database in PowerShell 7.x. Build data-driven scripts, persist state, automate tasks, and replace fragile CSV and JSON workflows.
PowerShell 7.x Fundamentals
PowerShellPowerShell 7.x Fundamentals teaches modern, cross-platform scripting and automation with PowerShell. Learn cmdlets, pipelines, functions, error handling, and real-world automation on Windows, Linux, and macOS.
Learn how to parse, create, and manipulate JSON in PowerShell. Master API integration, automation workflows, dynamic data processing, and advanced JSON scripting techniques.
PowerShell Essentials for Windows Server 2025
Windows ServerLearn PowerShell fundamentals for Windows Server 2025: cmdlets, parameters, objects, pipeline, scripting, automation, logging, scheduling, remoting, and secure scripting practices—built for real admin workflows.
PowerShell for Active Directory
PowerShellAutomate Active Directory with PowerShell. Learn user lifecycle management, group automation, bulk operations, reporting, and enterprise-ready AD scripting best practices.
PowerShell for Azure Administration
PowerShellAutomate, manage, and secure Microsoft Azure using PowerShell and the Az module. Build reusable scripts, manage RBAC, deploy infrastructure, and scale cloud operations efficiently.
PowerShell: Hyper-V Virtualization
PowerShellAutomate and scale Microsoft Hyper-V environments using PowerShell with real-world scripts and enterprise-ready practices.
Prompt Engineering for Developers
DATA & AIMaster prompt engineering as a core developer skill. Learn structured prompt design, code generation control, debugging, testing, security, token optimization, and production-ready AI instruction patterns.
Prompt Engineering Mastery
DATA & AIMaster the principles of prompt engineering to design reliable, high-quality prompts for AI systems, reduce hallucinations, and build reusable prompt patterns.
Python 3 Fundamentals
PythonMaster Python 3 fundamentals with a clear, structured guide covering syntax, data structures, functions, files, and object-oriented programming. Ideal for beginners and career switchers building real Python skills.
Learn how to build lightweight database applications using Python and SQLite. Create CLI and GUI apps, manage data safely, and scale small database projects efficiently.
Learn how to generate, customize, and decode 1D and 2D barcodes with Python. Build inventory systems, POS apps, and real-time barcode scanners using practical projects.
Master creational, structural, and behavioral design patterns in Python. Learn when to use them, how to implement them cleanly, and how to apply them in real-world projects.
Learn Python from scratch with no prior experience. A beginner-friendly, step-by-step guide covering variables, conditions, loops, functions, and simple projects to build real programming confidence.
Build real Python skills through 250 beginner-friendly exercises. Practice syntax, control flow, functions, data structures, strings, file I/O, and error handling—then apply everything in mini-projects with clear, practical learning progression.
Build real Python confidence with 250 graded exercises updated for 2026 (Python 3.12+). Practice syntax, control flow (incl. match/case), functions, data structures, strings, pathlib-based file I/O, error handling, and finish with mini-projects + full solutions.
Beginner-friendly Python guide with 200 hands-on exercises. Learn syntax, control flow, data structures, OOP, and advanced topics through practical coding. Build real programming skills step by step.
React Fundamentals
Web DevelopmentLearn React from scratch and build modern, component-based web applications. Master JSX, hooks, state management, routing, API integration, and production-ready frontend development.
Redis Fundamentals
DATABASESLearn Redis from basics to production. Master in-memory data structures, caching, Pub/Sub, persistence, replication, clustering, security, and high-performance scaling.
Regex Mastery for System Administrators
ScriptingMaster regex for real-world system administration. Parse logs, edit configs safely, hunt threats, and automate workflows using practical patterns for Linux and PowerShell.
Remote Administration Security Guide
SSH & Remote AccessLearn how to secure remote administration channels like SSH, RDP, and PowerShell using modern security principles, hardening techniques, monitoring, and zero-trust strategies.
RHCSA EX200 Bonus Practice Book
Linux CertificationIntensive RHCSA EX200 practice labs. Advanced tasks on Podman, SELinux, ACL, LVM, networking, firewalld, Bash, and full timed mock exams for exam readiness.
RHCSA EX200 Exam Prep 2026
Linux CertificationPass RHCSA EX200 with hands-on practice. Build a lab, master RHEL admin tasks (SELinux, LVM, systemd, networking), and train with full exam scenarios for 2026.
Rocky Linux 9 Administration
RHEL / AlmaLinuxMaster Rocky Linux 9 administration. Install, configure, secure, and manage enterprise-grade Linux systems with networking, SELinux, firewalls, services, and production best practices.
Rocky Linux 9 + Docker + Traefik: Self-Hosted Platform
RHEL / AlmaLinuxBuild a secure, scalable self-hosted platform on Rocky Linux 9 using Docker and Traefik. Learn installation, container orchestration, automatic HTTPS, security hardening, backups, scaling, and production-ready automation.
Scripting for IT Professionals
ScriptingLearn practical automation for real IT work using Bash, PowerShell, and Python. Turn repetitive tasks into reliable scripts and advance your IT career with structured automation skills.
Secure Coding in the Age of AI
DATA & AIMaster secure coding for AI-assisted development. Protect applications, APIs, prompts, infrastructure, and supply chains with secure-by-design engineering practices.
Secure Web Hosting with AlmaLinux 9
RHEL / AlmaLinuxLearn how to secure web hosting on AlmaLinux 9 with hardened Apache, Nginx, firewalld, Fail2Ban, PHP-FPM, MariaDB, and advanced SSL/TLS configurations.
Security+ Certification Guide
NETWORKING & SECURITYA complete guide for the CompTIA Security+ exam. Learn core security concepts, threats, cryptography, network security, incident response, and exam strategies to pass Security+ with confidence.
SELinux & AppArmor Guide
Linux SecurityMaster SELinux and AppArmor with practical, real-world examples. Learn mandatory access control, policy creation, troubleshooting, service hardening, containers, and production security best practices.
SOC Analyst Advanced: Incident Response & Forensics
CyberSecurityAdvance from SOC triage to full incident response leadership. Master digital forensics, threat hunting, cloud investigations, malware analysis, and forensic reporting.
SOC Analyst Fundamentals
CyberSecurityLearn how to monitor, detect, and respond to cyber threats as a professional SOC Analyst. Practical SIEM skills, alert triage, incident response, and real-world security workflows.
SQL for Absolute Beginners
DATABASESLearn SQL from scratch with simple explanations and practical examples. Understand databases, write queries, filter and join data, and build a strong foundation for data analysis and development.
SQLite Fundamentals
DATABASESMaster SQLite from basics to production. Learn schema design, CRUD, joins, indexing, transactions, performance tuning, backups, and integration with Python and Node.js for modern embedded applications.
SSH Mastery: Secure Remote Administration
SSH & Remote AccessMaster SSH beyond basic login: secure authentication, key management, hardening, tunneling, automation, auditing, and enterprise-grade SSH practices for modern infrastructure.
System Administration Fundamentals
System AdministrationMaster core system administration skills including Linux, Windows, networking, storage, security, scripting, troubleshooting, and modern IT infrastructure fundamentals.
System Design with AI Support
DATA & AIDesign scalable and reliable systems with AI as your architecture co-pilot. Master APIs, data models, caching, microservices, and real-world case studies.
systemd: Service Management
Linux ServersMaster Linux service management with systemd. Learn systemctl, journald, service dependencies, custom units, and troubleshooting techniques used in real-world systems.
TypeScript Design Patterns
TypeScriptMaster TypeScript design patterns and SOLID principles. Build scalable, maintainable, and type-safe applications using proven creational, structural, and behavioral patterns.
TypeScript for Backend Developer
TypeScriptBuild production-ready TypeScript backends with clean architecture, Express, DTO validation, database typing, testing, logging, and scalable design patterns for Node.js services.
TypeScript Fundamentals
TypeScriptLearn TypeScript from the ground up and write safer, more scalable JavaScript. Master types, interfaces, classes, migration strategies, and real-world best practices.
Ubuntu 24.04 LTS Server Administration
Debian / UbuntuMaster Ubuntu 24.04 LTS server administration. Install, secure, configure networking, manage services, implement backups, and deploy production-ready Ubuntu servers.
Ubuntu Desktop for Windows Users
Debian / UbuntuSwitch from Windows to Ubuntu with confidence. Learn installation, daily usage, software alternatives, security, and customization-explained clearly for Windows users with no Linux experience.
Ubuntu Server Administration
Debian / UbuntuMaster Ubuntu Server administration from installation to production operations. Learn APT and Snap, users and permissions, systemd, networking, storage, security, backups, automation, cloud deployments, and troubleshooting.
VS Code Mastery
PROGRAMMING & DEVELOPMENTMaster Visual Studio Code and boost your productivity. Learn editing, debugging, extensions, Git integration, and remote workflows with practical, real-world examples for developers and IT professionals.
Webhook Automation in Practice
AutomationWebhook Automation in Practice is a hands-on guide to building secure, reliable, and scalable webhook integrations. Learn real-world patterns for event-driven systems, automation, and production workflows.
Windows PKI & Certificates
Windows SecurityLearn how to design, deploy, and manage Windows PKI and Certificate Services. Secure Active Directory, authentication, SSL/TLS, and enterprise environments.
Windows Server 2022 Administration
Windows ServerMaster Windows Server 2022 administration from installation to production. Learn roles, Active Directory, networking, security, PowerShell automation, and hybrid cloud integration.
Windows Server 2025 Administration
Windows ServerAdminister Windows Server 2025 with confidence. Learn installation, security hardening, Active Directory, networking, PowerShell automation, and hybrid cloud management.
Windows Server 2025: Manage with PowerShell
Windows ServerAdminister Windows Server 2025 the scalable way. Automate roles, users, permissions, storage, networking, firewall, updates, auditing, monitoring, remoting, Hyper-V and Azure tasks using practical PowerShell scripts.
Learn Windows Terminal, CMD, and PowerShell from beginner to advanced. Master command-line tools, scripting, troubleshooting, security, and automation for modern Windows administration.