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How to install and configure LAMP on Linux VPS

How to install and configure LAMP on Linux VPS

Preparation

VPS with Ubuntu 20.04/22.04/24.04 or Debian 11/12.
User with sudo, SSH access.
Domain (optional) and open port 80/443 in the provider’s panel.

Apache: installation, autostart, and verification

Linux vps

Expecting HTTP/1.1 200 OK headers. The default page is located in /var/www/html/.

UFW firewall for HTTP/HTTPS and service status

Linux vps

If you are not using UFW, ensure that 80/443 are allowed in your provider’s cloud firewall.

MySQL Server: installation and basic protection

Respond securely:

Enable password strength checking (Yes).
Remove anonymous users (Yes).
Disallow remote root login (Yes).
Remove test database (Yes).
Reload privileges (Yes).

Linux vps

Creating a database and user for the application

In the MySQL console:

Linux vps

For remote access, specify the host: “appuser”@‘%’ and configure the bind-address/firewall in isolation.

PHP: module installation and test page

Open http://<IP>/info.php in your browser to see the phpinfo() page (then delete it).

Linux vps

Production directory and Apache virtual host

Let’s create the site structure and configuration file:

Create the configuration file /etc/apache2/sites-available/example.com.conf:

Linux vps

AllowOverride All is needed if you use .htaccess (rewrites, caching, etc.).

Activate the site, mod_rewrite, and reread the config.

Linux vps

Check the website by domain or IP: Hello from LAMP! should open.

Checking the PHP ↔ MySQL (PDO) connection

Create /var/www/example.com/public_html/dbtest.php:

Open http://example.com/dbtest.php → you will see 1.

Linux vps

HTTPS in 2 minutes (bonus)

If the domain points to the server, we install a free certificate:

Certbot will automatically enable HTTPS and auto-renewal.

Configuring PHP for production (briefly)

Edit /etc/php/*/apache2/php.ini:

expose_php = Off
memory_limit = 256M (depending on load)
upload_max_filesize and post_max_size according to your CMS
date.timezone = Europe/Kyiv
Restart Apache: sudo systemctl reload apache2.

Analogues for AlmaLinux/Rocky/CentOS (RHEL)

LAMP startup checklist

Apache is running, 80/443 are open, mod_rewrite is enabled.
MySQL is secured, appdb and appuser are created.
PHP is installed with necessary modules, info.php is removed.
Virtual host is enabled, AllowOverride All is set.
dbtest.php returns 1 (PDO works).
HTTPS is enabled (if there is a domain), cron/auto-renew is active.

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