A comprehensive bash script to automatically install and configure a complete LEMP (Linux, NGINX, MariaDB, PHP) stack with multiple PHP versions on Ubuntu. Perfect for development environments or production servers that need to support applications requiring different PHP versions.

• Multiple PHP Versions: Installs PHP 5.6, 7.0, 7.1, 7.2, 7.3, 7.4, 8.0, 8.1 and 8.2 simultaneously
• Easy PHP Switching: Includes a convenient command-line tool to switch between PHP versions
• NGINX Web Server: Installs and configures latest NGINX from Ondřej Surý's repository
• MariaDB Database: Installs and secures MariaDB server with automated configuration
• phpMyAdmin: Sets up web-based database management interface
• Security Features:
  • Fail2Ban for intrusion prevention (protects SSH, NGINX)
  • UFW Firewall pre-configured with sensible defaults (ports 22, 80, 443)
  • Secure MariaDB installation
• Monitoring & Testing: Creates testing pages for PHP info and server status

• A fresh installation of Ubuntu (18.04, 20.04, 22.04, or newer)
• Root privileges
• Internet connection

1. Download the installer script:

wget https://raw.githubusercontent.com/script-php/lemp/main/installer.sh

2. Make it executable:

chmod +x installer.sh

3. Run the script as root:

sudo ./installer.sh

4. Follow the on-screen prompts to complete the installation.

After installation, you can switch between PHP versions using the included phpswitch command:

# List available PHP versions
phpswitch

# Switch to PHP 8.1
phpswitch 8.1

# Check current PHP version
php -v

The script will automatically configure NGINX to use the selected PHP version.

For production servers, consider:

1. Setting a strong password for MariaDB root user during installation

2. Disabling root SSH access if not needed:

# Edit SSH config
nano /etc/ssh/sshd_config

# Change this line
PermitRootLogin no

# Restart SSH
systemctl restart sshd

You can easily customize the installer by editing the script:

• To install additional PHP versions, modify the php_versions array
• To add more PHP extensions, update the apt-get install commands
• To modify firewall rules, update the UFW section

If you encounter issues during installation:

1. Check the log file at /var/log/lemp_installer.log
2. Verify all services are running:

systemctl status nginx
systemctl status mariadb
systemctl status php*-fpm

3. Check NGINX configuration:

nginx -t

Contributions are welcome! Please feel free to submit a Pull Request.

This project is licensed under the MIT License - see the LICENSE file for details.

• Ondřej Surý for maintaining the PHP and NGINX repositories
• The LEMP stack community for documentation and best practices

This script is provided "as is", without warranty of any kind. Use at your own risk.