Nginx 502 Bad Gateway with PHP-FPM: 6 Causes and Fixes
A 502 Bad Gateway on Nginx with PHP-FPM means Nginx received the request but got no valid response from PHP-FPM.
How to Install a LEMP Stack on Ubuntu 24.04 (Step by Step)
To install a LEMP stack on Ubuntu 24.04, run sudo apt update, then install each component from the default repositories: sudo apt install nginx, sudo apt…
Stack Guides
How to Install WordPress on a LEMP Stack (Ubuntu 24.04)
To install WordPress on a LEMP stack, install the PHP extensions WordPress needs (mysql, curl, gd, mbstring, xml, zip), create a dedicated MySQL database…
Stack GuidesLEMP Stack Production Setup: Pre-Deploy Checklist
A production-ready LEMP stack needs more than running services.
Essays
How to Secure Nginx with Let's Encrypt (Certbot Tutorial)
To secure Nginx with Let's Encrypt, install Certbot (sudo snap install --classic certbot on Ubuntu), then run sudo certbot --nginx -d yourdomain.com.
Nginx Server Blocks: Host Multiple Sites on One Server
Nginx server blocks are configuration sections — each a server { } block — that let one Nginx instance host multiple websites on a single server.
Nginx vs Apache: Performance, Config, and When to Use Each
Nginx and Apache are both mature, production-grade web servers; the core difference is architecture.
PHP-FPM Tuning for Nginx: Pools and Worker Limits
PHP-FPM tuning starts with measurements, not a copied pm.max_children value.
UFW Firewall Setup for Nginx on Ubuntu: 5 Essential Rules
To set up a UFW firewall for Nginx on Ubuntu, run five commands: sudo ufw default deny incoming, sudo ufw default allow outgoing, sudo ufw allow OpenSSH,…