Installing the L(EMP) Stack

📋 Introduction

The L(EMP) stack is a powerful combination of open-source software used to serve dynamic web applications and websites. The acronym stands for Linux (operating system), Nginx (web server, pronounced "Engine-X"), MariaDB (database management system), and PHP (server-side scripting language).

📦 Understanding Repositories and Package Management

Repository Types

Ubuntu uses two main types of repositories for software distribution:

APT Package Manager Commands

The Advanced Package Tool (APT) is Ubuntu's package management system. Here are the essential commands:

Searching for Packages

apt-cache search nginx

apt-cache show nginx

🌐 Installing Nginx Web Server

Nginx is a high-performance web server known for its stability, rich feature set, simple configuration, and low resource consumption. We'll install Nginx along with several useful modules.

Step 1: Update System

sudo apt update
sudo apt upgrade

Step 2: Add Ondřej Nginx Repository

sudo add-apt-repository ppa:ondrej/nginx

Step 3: Install Nginx and Modules

sudo apt install nginx \
  libnginx-mod-http-cache-purge \
  libnginx-mod-http-headers-more-filter \
  libnginx-mod-http-brotli-filter \
  libnginx-mod-http-brotli-static

Nginx Modules Explained

Step 4: Check Nginx Status

sudo systemctl status nginx
sudo systemctl status nginx --no-pager -l

sudo nano /etc/nginx/sites-available/default

listen [::]:80 default_server;

# listen [::]:80 default_server;

sudo systemctl start nginx

Step 5: Verify Nginx is Running

# Check if enabled for auto-start
sudo systemctl is-enabled nginx

# Check status
sudo systemctl status nginx --no-pager -l

Step 6: Test Nginx in Browser

Open your browser and navigate to:

http://your_server_ip_address/

Or test using curl:

# View HTTP headers
curl -I http://your_server_ip_address/

# View page content
curl -i http://your_server_ip_address/

Step 7: Check Nginx Version

nginx -v

🗄️ Installing MariaDB Database Server

MariaDB is a community-developed, commercially supported fork of MySQL. Ubuntu 24.04 ships with MariaDB 10.11, which is a Long-Term Support (LTS) release maintained until February 2028.

Step 1: Install MariaDB

sudo apt update
sudo apt install mariadb-server

Step 2: Check MariaDB Status

sudo systemctl status mariadb
sudo systemctl status mariadb --no-pager -l

Step 3: Verify Auto-Start Configuration

sudo systemctl is-enabled mariadb

sudo mysql_secure_installation

🐘 Installing PHP 8.3

PHP 8.3 is the latest stable version with significant performance improvements. We'll install it from the Ondřej repository along with essential extensions.

Why Use Ondřej's PHP Repository?

• ✅ Easy version upgrades
• ✅ Multiple PHP versions on same server
• ✅ Regular security updates
• ✅ Comprehensive extension support
• ✅ Maintained by trusted Debian developer

Step 1: Add Ondřej PHP Repository

sudo add-apt-repository ppa:ondrej/php

Step 2: Install PHP 8.3 with Extensions

sudo apt install php8.3-{fpm,gd,mbstring,mysql,xml,xmlrpc,opcache,cli,zip,soap,intl,bcmath,curl,imagick,ssh2}

PHP Extensions Explained

Step 3: Verify PHP-FPM Status

sudo systemctl status php8.3-fpm
sudo systemctl status php8.3-fpm --no-pager -l

Step 4: Check Auto-Start Configuration

sudo systemctl is-enabled php8.3-fpm

Step 5: Verify PHP Version

php -v

✅ Stack Installation Verification

Complete System Check

# Check all services
sudo systemctl status nginx
sudo systemctl status mariadb
sudo systemctl status php8.3-fpm

# Verify auto-start enabled
sudo systemctl is-enabled nginx
sudo systemctl is-enabled mariadb
sudo systemctl is-enabled php8.3-fpm

# Check versions
nginx -v
mysql --version
php -v

Quick Reference Commands

🚀 Next Steps

Recommended Additional Configurations

• 🔐 Secure MariaDB installation (mysql_secure_installation)
• 🔧 Configure Nginx server blocks (virtual hosts)
• ⚡ Optimize PHP-FPM settings for performance
• 🔒 Set up SSL/TLS certificates (Let's Encrypt)
• 📊 Configure logging and monitoring
• 🛡️ Implement firewall rules (UFW)

🔧 Common Troubleshooting