33 articles found
Master cron from syntax to production. Complete guide covering crontab syntax, scheduling patterns, environment setup, logging, security, practical automation examples, systemd timer comparison, and troubleshooting for Linux administrators....
Master systemd from basics to advanced. Complete guide covering service management, unit files, targets, timers, journalctl logging, cgroups resource control, security sandboxing, and troubleshooting for Linux administrators....
Master Ubuntu from installation to production server deployment. Complete guide covering desktop and server editions, package management with APT, snap packages, system administration, security hardening, networking, cloud integration with Ubuntu Pro, and best practices for developers and sysadmins....
Master NGINX from installation to production deployment. Complete guide covering server blocks, reverse proxy, load balancing, SSL/TLS with Let's Encrypt, security headers, rate limiting, performance tuning, and Docker deployment with practical examples....
Master PostgreSQL in 2026: learn SQL queries, data types, joins, indexes, JSONB, functions, triggers, security, backup, replication, and performance tuning with practical examples and a free 20-page PDF cheat sheet....
Master Python in 2026: learn variables, data types, OOP, modules, file I/O, testing, async programming, type hints, and best practices with practical code examples and a free 20-page PDF cheat sheet....
Master GitHub in 2026: learn repositories, branching strategies, pull requests, GitHub Actions CI/CD, security scanning, Copilot AI, and open source contribution workflow with practical examples....
Master Kubernetes container orchestration from scratch. Learn pods, deployments, services, networking, storage, Helm, RBAC, autoscaling, GitOps CI/CD, and production best practices with real YAML manifests....
Master Docker containerization from scratch. Learn images, containers, Dockerfile, volumes, networking, Docker Compose, security, CI/CD, and production best practices with real-world examples....