This tutorial is going to show you how to install Apache, MariaDB and PHP7 (LAMP stack) on Debian 9 stretch. LAMP is the most common web service stack for building dynamic websites and web applications. It’s made up of four components – Linux, Apache, MySQL/MariaDB, PHP – Linux is the operating system; Apache is the web server; MySQL/MariaDB is database; PHP is a server-side scripting language.
All of the four components are free and open-source. However, since MySQL is now owned by Oracle and there’s a chance that Oracle turns it to a closed-source product, we will choose MariaDB instead of MySQL. You can follow this tutorial on a VPS (Virtual Private Server) or on a local Debian 9 computer.
Please note that you need to have root privilege when installing software on Debian. You can add sudo at the beginning of a command, or use
su - command to switch to root user.
Step 1: Update Software Packages
Before we install the LAMP stack, it’s a good idea to update repository and software packages. Run the following command on your Debian 9 OS.
sudo apt update
sudo apt upgrade
Step 2: Install Apache Web Server
Enter the following command to install Apache Web server. The
apache2-utils package will install some useful utilities like Apache HTTP server benchmarking tool (ab).
sudo apt install apache2 apache2-utils
After it’s installed, Apache should be automatically started. Check its status with systemctl.
systemctl status apache2
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset:
Active: active (running) since Sun 2017-08-13 02:36:48 UTC; 5min ago
Main PID: 14463 (apache2)
├─14463 /usr/sbin/apache2 -k start
├─14465 /usr/sbin/apache2 -k start
└─14466 /usr/sbin/apache2 -k start
If it’s not running, use systemctl to start it.
sudo systemctl start apache2
It’s also a good idea to enable Apache to automatically start at boot time.
sudo systemctl enable apache2
Check Apache version:
sudo apache2 -v
Server version: Apache/2.4.25 (Debian)
Server built: 2017-07-18T18:37:33
Now type in the public IP address of your Debian 9 server in the browser address bar. You should see “It works!” Web page, which means Apache Web server is running properly.
You can use the following commands to fetch the public IP address of your Debian 9 server in the terminal.
sudo apt install curl
If you are installing LAMP on your local Debian 9 box, then you should type
localhost in the browser address bar.
Finally, we need to set
www-data (Apache user) as the owner of web root directory. By default it’s owned by root user.
sudo chown www-data:www-data /var/www/html/ -R
Step 3: Install MariaDB Database Server
MariaDB is a drop-in replacement for MySQL. Enter the following command to install it on Debian 9.
sudo apt install mariadb-server mariadb-client
After it’s installed, MariaDB server should be automatically stared. Use systemctl to check its status.
systemctl status mariadb
● mariadb.service - MariaDB database server
Loaded: loaded (/lib/systemd/system/mariadb.service; enabled; vendor preset: enabled)
Active: active (running) since Sun 2017-08-13 03:05:17 UTC; 1min 37s ago
Main PID: 16127 (mysqld)
Status: "Taking your SQL requests now..."
If it’s not running, start it with this command:
sudo systemctl start mariadb
To enable MariaDB to automatically start at boot time, run
sudo systemctl enable mariadb
Now run the post installation security script.
When it asks you to enter MariaDB root password, press Enter key as the root password isn’t set yet. Then enter y to set the root password for MariaDB server.
Next, you can just press Enter to answer all remaining questions. This will remove anonymous user, disable remote root login and remove test database. This step is a basic requirement for MariaDB database security.
Now you can use the following command to log in to MariaDB server.
sudo mariadb -u root
To exit, run
Check MariaDB server version information.
mariadb Ver 15.1 Distrib 10.1.23-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2
Step 4: Install PHP7
Enter the following command to install PHP7.
sudo apt install php7.0 libapache2-mod-php7.0 php-common php7.0-cli php7.0-common php7.0-json php7.0-opcache php7.0-readline
Enable the Apache php7.0 module then restart Apache Web server.
sudo a2enmod php7.0
sudo systemctl restart apache2
Check PHP version information.
PHP 7.0.19-1 (cli) (built: May 11 2017 14:04:47) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies
with Zend OPcache v7.0.19-1, Copyright (c) 1999-2017, by Zend Technologies
To test PHP scripts with Apache server, we need to create a
info.php file in the Web root directory.
sudo nano /var/www/html/info.php
Paste the following PHP code into the file.
<?php phpinfo(); ?>
Save and close the file. Now in the browser address bar, enter
sever-ip-address with your actual IP. If you follow this tutorial on your local computer, then type
You should see your server’s PHP information. This means PHP scripts can run properly with Apache web server. You can find that Zend OPcache is enabled.
Congrats! You have successfully installed Apache, MariaDB and PHP7 on Debian 9 Stretch. For your server’s security, you should delete info.php file now to prevent prying eyes.
sudo rm /var/www/html/info.php
That’s it! I hope this tutorial helped you install LAMP stack on Debian 9 Stretch. As always, if you found this post useful, then subscribe to our free newsletter to get new tutorials.