Update the system: Run sudo apt update && sudo apt upgrade -y to ensure the latest environment; 2. Install Apache: Use sudo apt install apache2 -y and enable the service, and the browser can access the server IP to see the default page; 3. Install MySQL: execute sudo apt install mysql-server -y and run sudo mysql_secure_installation to enhance security; 4. Install PHP: Use sudo apt install php libapache2-mod-php php-mysql -y and create info.php to verify that PHP resolution is normal; 5. Optional configuration of virtual hosts: Create a site directory, set permissions, write a virtual host configuration file, enable a site and reload Apache to deploy multi-site or structured projects - a LAMP environment for small to medium-sized PHP websites that can run in production environments is complete.

Installing and configuring a LAMP (Linux, Apache, MySQL, PHP) stack is a foundational skill for hosting dynamic websites or web apps on Linux. Here's a clear, step-by-step guide using Ubuntu 22.04 LTS — one of the most popular choices for web servers.

? 1. Update Your System

Before installing anything, make sure your system is up to date:

 sudo apt update && sudo apt upgrade -y

? 2. Install Apache (the "A" in LAMP)

Apache is the web server that serves your content.

 sudo apt install apache2 -y

After installation:

• Start and enable Apache:

   sudo systemctl start apache2
  sudo systemctl enable apache2

• Test it: Open your browser and go to http://your-server-ip . You should see the Apache default page.

? If you're on a cloud provider (like AWS or DigitalOcean), make sure port 80 (HTTP) is open in the firewall/security group.

?? 3. Install MySQL (the "M")

MySQL handles your database needs.

 sudo apt install mysql-server -y

Secure your MySQL installation:

 sudo mysql_secure_installation

Follow the prompts to:

• Set a root password
• Remove anonymous users
• Disallow root login remotely
• Remove test database
• Reload privileges

? You can log in to MySQL with: sudo mysql -u root -p

? 4. Install PHP (the "P")

PHP processes dynamic content (like WordPress, Laravel, etc.).

 sudo apt install php libapache2-mod-php php-mysql -y

Test PHP:

• Create a test file:

   sudo nano /var/www/html/info.php

• Add this content:

   <?php phpinfo(); ?>

• Save and visit http://your-server-ip/info.php in your browser. You should see the PHP info page.

? This confirms Apache is processing PHP files correctly.

? 5. (Optional) Configure a Virtual Host

If you're hosting multiple sites or want a cleaner setup:

1. Create a directory:

    sudo mkdir /var/www/example.com

2. Set permissions:

    sudo chown -R $USER:$USER /var/www/example.com
   sudo chmod -R 755 /var/www/example.com

3. Create a basic index.php:

    <?php echo "Hello from example.com!"; ?>

4. Create a virtual host file:

    sudo nano /etc/apache2/sites-available/example.com.conf

   Add:

    <VirtualHost *:80>
       ServerName example.com
       ServerAlias www.example.com
       DocumentRoot /var/www/example.com
       ErrorLog ${APACHE_LOG_DIR}/error.log
       CustomLog ${APACHE_LOG_DIR}/access.log combined
   </VirtualHost>

5. Enable the site:

    sudo a2ensite example.com.conf
   sudo a2enmod rewrite # Useful for clean URLs (eg, WordPress permalinks)
   sudo systemctl reload apache2

   ? If you don't have a domain, edit your local machine's /etc/hosts file to point example.com to your server IP for testing.

   ---

   ? Done!

   You now have a working LAMP stack:

   • Apache serving web pages
   • MySQL managing databases
   • PHP processing dynamic content

   From here, you can:

   • Install WordPress, Laravel, or any PHP app
   • Secure with Let's Encrypt (HTTPS)
   • Optimize performance with caching or PHP-FPM

   This setup is production-ready for small to medium sites — just don't leave info.php accessible in production!

   Basically, just follow the steps in order — no magic, just solid Linux fundamentals.

   The above is the detailed content of How to Install and Configure a Linux Web Server (LAMP Stack). For more information, please follow other related articles on the PHP Chinese website!