Ubuntu 16.04 LAMP server tutorial with Apache 2.4, PHP 7 and MariaDB (instead of MySQL)

https://www.howtoforge.com/tutorial/install-apache-with-php-and-mysql-on-ubuntu-16-04-lamp/

This tutorial exists for these OS versions

• Ubuntu 16.04 (Xenial Xerus)
• Ubuntu 15.10 (Wily Werewolf)
• Ubuntu 15.04 (Vivid Vervet)
• Ubuntu 14.10 (Utopic Unicorn)
• Ubuntu 14.04 LTS (Trusty Tahr)
• Ubuntu 13.10 (Saucy Salamander)

On this page

1. Preliminary Note
2. Installing MariaDB as MySQL replacement
3. Install Apache 2.4
4. Install PHP 7
5. Test PHP and get details about your PHP installation
6. Get MySQL / MariaDB support in PHP
7. Install the APCu PHP cache to speed up PHP
8. Enable the SSL website in apache
9. Install phpMyAdmin
10. Links

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache 2 web server on an Ubuntu 16.04 (Xenial Xerus) server with PHP 7 (mod_php) and MySQL support. Additionally, I will install PHPMyAdmin to make MySQL administration easier. A LAMP setup is the perfect basis for CMS systems like Joomla, Wordpress or Drupal.

Preliminary Note

In this tutorial, I will use the hostname server1.example.com with the IP address 192.168.1.100. These settings might differ for you, so you have to replace them where appropriate.

I recommend to use a minimal Ubuntu server setup as basis for the tutorial, that can be a virtual- or root server image with an Ubuntu 16.04 minimal install from a web hosting company or you use our minimal server tutorial to install a server from scratch.

I'm running all the steps in this tutorial with root privileges, so make sure you're logged in as root:

sudo su

Installing MariaDB as MySQL replacement

We will install MariaDB instead of MySQL. MariaDB is a MySQL fork maintained by the original MySQL developer Monty Widenius. MariaDB is compatible with MySQL and provides interesting new features and speed improvements when compared to MySQL. Run the following command to install MariaDB-server and client:

apt-get -y install mariadb-server mariadb-client

Now we set a root password for MariaDB.

mysql_secure_installation

You will be asked these questions:

Enter current password for root (enter for none): <-- press enter
Set root password? [Y/n] <-- y
New password: <-- Enter the new MariaDB root password here
Re-enter new password: <-- Repeat the password
Remove anonymous users? [Y/n] <-- y
Disallow root login remotely? [Y/n] <-- y
Reload privilege tables now? [Y/n] <-- y

Test the login to MariaDB with the "mysql command"

mysql -u root -p

and enter the MariaDB root password that you've set above. The result should be similar to the screenshot below:

To leave the MariaDB shell, enter the command "quit" and press enter.

Install Apache 2.4

Apache 2 is available as an Ubuntu package, therefore we can install it like this:

apt-get -y install apache2

Now direct your browser to http://192.168.1.100, and you should see the Apache2 default page (It works!):

The document root of the apache default vhost is /var/www/html on Ubuntu and the main configuration file is /etc/apache2/apache2.conf. The configuration system is fully documented in /usr/share/doc/apache2/README.Debian.gz.

Install PHP 7

We can install PHP 7 and the Apache PHP module as follows:

apt-get -y install php7.0 libapache2-mod-php7.0

Then restart Apache:

systemctl restart apache2

Test PHP and get details about your PHP installation

The document root of the default web site is /var/www/html. We will now create a small PHP file (info.php) in that directory and call it in a browser. The file will display lots of useful details about our PHP installation, such as the installed PHP version.

nano /var/www/html/info.php

<?php
phpinfo();
?>

Then change the owner of the info.php file to the www-data user and group.

chown www-data:www-data /var/www/html/info.php

Now we call that file in a browser (e.g. http://192.168.1.100/info.php):

As you see, PHP 7.0 is working, and it's working through the Apache 2.0 Handler, as shown in the Server API line. If you scroll further down, you will see all modules that are already enabled in PHP5. MySQL is not listed there which means we don't have MySQL / MariaDB support in PHP yet.

Get MySQL / MariaDB support in PHP

To get MySQL support in PHP, we can install the php7.0-mysql package. It's a good idea to install some other PHP modules as well as you might need them for your applications. You can search for available PHP modules like this:

apt-cache search php7.0

Pick the ones you need and install them like this:

apt-get -y install php7.0-mysql php7.0-curl php7.0-gd php7.0-intl php-pear php-imagick php7.0-imap php7.0-mcrypt php-memcache  php7.0-pspell php7.0-recode php7.0-sqlite3 php7.0-tidy php7.0-xmlrpc php7.0-xsl php7.0-mbstring php-gettext

Now restart Apache2:

systemctl restart apache2

PHP 7 has now MySQL / MariaDB support as shown in phpinfo() above.

Install the APCu PHP cache to speed up PHP

APCu is a free PHP opcode cacher for caching and optimizing PHP intermediate code. It is strongly recommended to have an Opcache installed to speed up your PHP page.

APCu can be installed as follows:

apt-get -y install php-apcu

Now restart Apache:

systemctl restart apache2

Now reload http://192.168.1.100/info.php in your browser and scroll down to the modules section again. You should now find lots of new modules there:

Please don't forget to delete the info.php file when you don't need it anymore as it provides sensitive details of your server. Run the following command to delete the file.

rm -f /var/www/html/info.php

Enable the SSL website in apache

SSL/ TLS is a security layer to encrypt the connection between the web browser and your server. Execute the following commands on your server to enable https:// support. Run:

a2enmod ssl
a2ensite default-ssl

which enables the ssl module and adds a symlink in the /etc/apache2/sites-enabled folder to the file /etc/apache2/sites-available/default-ssl.conf to include it into the active apache configuration. Then restart apache to enable the new configuration:

systemctl restart apache2

Now test the SSL connection by opening https://192.168.1.100 in a web browser.

You will receive an SSL warning as the SSL certificate of the server is a "self-signed" SSL certificate, this means that the browser does not trust this certificate by default and you have to accept the security warning first. After accepting the warning, you will see the apache default page.

The closed "Green Lock" in front of the URL in the browser shows that the connection is encrypted. To get rid of the SSL warning, replace the self-signed SSL certificate /etc/ssl/certs/ssl-cert-snakeoil.pem with an officially signed SSL certificate from an SSL Authority.

Install phpMyAdmin

phpMyAdmin is a web interface through which you can manage your MySQL databases. It's a good idea to install it:

apt-get -y install phpmyadmin

You will see the following questions:

Web server to configure automatically: <-- Select the option: apache2
Configure database for phpmyadmin with dbconfig-common? <-- Yes
MySQL application password for phpmyadmin: <-- Press enter, apt will create a random password automatically.

MariaDB enables a plugin called "unix_socket" for the root user by default, this plugin prevents that the root user can log in to PHPMyAdmin and that TCP connections to MySQL are working for the root user. Therefore, I'll deactivate that plugin with the following command:

echo "update user set plugin='' where User='root'; flush privileges;" | mysql -u root -p mysql

Enter the MariaDB root password, when requested by the mysql command.

Afterward, you can access phpMyAdmin under http://192.168.1.100/phpmyadmin/:

Links

• Apache: http://httpd.apache.org/
• PHP: http://www.php.net/
• MySQL: http://www.mysql.com/
• MariaDB: https://mariadb.com/
• Ubuntu: http://www.ubuntu.com/
• phpMyAdmin: http://www.phpmyadmin.net/

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