Tech insights & updates

Nginx 502 means the backend failed, not Nginx. Here are the 6 real causes on Ubuntu (PHP-FPM down, crashed app, wrong proxy_pass, timeouts, big headers, socket permissions) with the exact commands to diagnose and fix each one.

MySQL 8.0 is end of life. This complete guide upgrades your server to MySQL 8.4 LTS on Ubuntu with a full backup, in-place upgrade, and fixes for the breaking auth changes.

Running everything as root is a security accident waiting to happen. This guide shows you how to create a dedicated sudo user on Ubuntu, lock down root login over SSH, and verify everything works.

Install WampServer on Windows 11 in about 15 minutes: Apache, PHP and MySQL running locally with phpMyAdmin, plus fixes for the port 80 conflicts and missing DLL errors that stop most installs.

Learn how to install a free SSL certificate on Apache (Ubuntu 24.04/22.04) with Certbot — get HTTPS, automatic renewal, and fixes for the common errors.

Run a full Ubuntu environment inside Windows 11 with WSL2: near-native speed, VS Code integration, and Linux GUI apps out of the box. Here is the complete setup.

Install n8n on Ubuntu 24.04 with Docker Compose, secure it behind Nginx with free HTTPS, and learn the backup and upgrade routines that keep your self-hosted automation running.

Set up a complete LEMP stack (Linux, Nginx, MySQL, PHP) on Ubuntu 24.04 in about 20 minutes — server blocks, php-fpm, and a working PHP site from scratch.

A complete, practical guide to backing up and restoring MySQL databases with mysqldump: consistent full backups, compression, automated daily cron backups, and restoring single tables or entire servers.