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Reverse Proxy Basics — One Front Door for All Web Services
Complete beginner guide to reverse proxies, forward vs reverse proxies, SNI routing, upstream headers (X-Forwarded-For), TLS termination, and choosing between Caddy and Nginx.
How Domains Work — Registry, Registrar, Registrant, and Lifecycle
A complete beginner-friendly overview of how internet domain names work, the three key roles, domain hierarchy, the full lifecycle, and nameserver delegation.
Choosing a TLD — .de vs .eu vs .com vs New gTLDs
Complete beginner guide to selecting the right Top-Level Domain, pricing traps, renewal math, HSTS preloading, trust signals, and SEO implications.
Fail2ban — Protect SSH and Web Services from Brute Force
Install, configure, and operate fail2ban to automatically block malicious IP addresses attempting brute-force logins.
Certbot — Automated Let's Encrypt TLS Certificates
Install and configure Certbot to automatically issue and renew free Let's Encrypt SSL/TLS certificates for web servers.
Nginx — High-Performance Web Server & Reverse Proxy
Install, configure, and operate Nginx on Linux for serving static sites, proxying application servers, and managing SSL/TLS certificates.
Caddy — Zero-Config Web Server with Automatic HTTPS
Deploy Caddy to serve websites and reverse proxy Docker apps with automatic Let's Encrypt TLS out of the box.
Lynx — Text-Based Web Browser for Terminal & SEO Inspection
Complete beginner guide to Lynx, browsing the web in pure text, inspecting HTML semantics, SEO crawler audits, and dump CLI flag breakdowns.
PHP 8.3 Getting Started — Installation, CLI Server, Routing, and OPcache
Complete beginner guide to modern PHP 8.3, package installation, CLI development server flags, building a front controller micro-router, and OPcache.
JavaScript fetch() Basics — Asynchronous HTTP, JSON, and Error Handling
Complete beginner guide to the modern JavaScript fetch API, handling HTTP errors with res.ok, POSTing JSON payloads, and request timeouts with AbortController.
CSS Layout — When to Use CSS Grid vs. Flexbox
Complete beginner guide to modern CSS layouts, the 1D vs 2D rule, building responsive page layouts with Grid, and mastering Flexbox component alignment.