About LAMP
The LAMP stack is a group of open source software used to get web servers up and running. The acronym stands for Linux, Apache, MySQL, and PHP. Arch Linux uses the powerful Pacman installer which can download all of the most recent, required packages for each program with one command.
Set Up
The steps in this tutorial require the user to have root privileges. You can see how to set that up here in steps 3 and 4.
Step One—Install Apache
Apache is a free open source software that runs over 50% of the world’s web servers.
Before installing any of the LAMP programs, we should update the package manager:
sudo pacman -Syu
Once the update is complete, we can install Apache:
sudo pacman -S apache
After Apache is installed, we need to make a couple of changes in the configuration.
Open up the apache configuration file:
sudo nano /etc/httpd/conf/httpd.conf
Comment out the unique_id_module (you can use ctrl w to find it quickly):
#LoadModule unique_id_module modules/mod_unique_id.so
Restart Apache:
sudo systemctl restart httpd
During the apache restart, you may get a notice that says the following:
httpd: apr_sockaddr_info_get() failed for droplet1
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
[DONE]
Although this alert does not interfere with the apache launch, you can easily eliminate it if you like by adding your hostname to your configuration.
Open up the hosts file:
sudo nano /etc/hosts
Add your hostname to the end of the line beginning with 127.0.0.1:
127.0.0.1 localhost.localdomain localhost droplet1
Subsequent restarts of Apache will no longer display that message. With that, Apache is now installed on your server. Directing your browser to your server’s IP address (http://12.34.56.789) will display an auto-index directory. You can quickly try out a sample page by adding an index.html file to Arch’s document root directory, located within “srv/http”:
sudo nano /srv/http/index.html
<html> <title>Welcome</title> <body> <h2>Hello, Welcome to Arch</h2> </body> </html>
You can visit the placeholder page by going to your server’s IP address in your browser.
How to Find your Server’s IP address
You can run the following command to reveal your server’s IP address.
curl -s icanhazip.com
Step Two—Install MySQL
MySQL is a powerful database management system used for organizing and retrieving data.
Since March 2013, MariaDB has become the default implementation of MySQL in Arch repositories. Installing the package "mysql" will automatically drop in MariaDB as a replacement. See the original announcement for more details.
To install MySQL, open terminal and type in these commands:
sudo pacman -S mysql
Hit enter if it asks you anything, unless you know you don't want the defaults.
Once you have installed MySQL, start it running
sudo systemctl start mysqld
Finish up by running the MySQL set up script:
sudo mysql_secure_installation
The process will ask you for your current MySQL root password (not to be confused with your server password) and, since it has not yet been set, simply press enter.
When prompted, “Set root password?” type Y, and afterwards enter in your new MySQL root password.
After that it’s easiest just to say Yes to all the options. At the end, MySQL will reload and implement the new changes.
By default, a MySQL installation has an anonymous user, allowing anyone to log into MySQL without having to have a user account created for them. This is intended only for testing, and to make the installation go a bit smoother. You should remove them before moving into a production environment. Remove anonymous users? [Y/n] y ... Success! Normally, root should only be allowed to connect from 'localhost'. This ensures that someone cannot guess at the root password from the network. Disallow root login remotely? [Y/n] y ... Success! By default, MySQL comes with a database named 'test' that anyone can access. This is also intended only for testing, and should be removed before moving into a production environment. Remove test database and access to it? [Y/n] y - Dropping test database... ... Success! - Removing privileges on test database... ... Success! Reloading the privilege tables will ensure that all changes made so far will take effect immediately. Reload privilege tables now? [Y/n] y ... Success! Cleaning up...
Once you're done installing MySQL, finish the LAMP stack by installing PHP.
Step Three—Install PHP
PHP is an open source web scripting language that is widely used to build dynamic webpages.
To install PHP, open terminal and type in this command.
sudo pacman -S php php-apache
PHP should also be added to the apache configuration file:
sudo nano /etc/httpd/conf/httpd.conf
Paste in this text block within the config.
# Use for PHP 5.x: LoadModule php5_module modules/libphp5.so AddHandler php5-script php Include conf/extra/php5_module.conf
Step Four—See your PHP Config and Add Programs to Startup
After LAMP is completely installed, we can take a look and see the PHP details by creating a quick php info page
To set this up, first create a new blank file:
sudo nano /srv/http/info.php
Add in the following line:
<?php phpinfo(); ?>
Then Save and Exit.
Restart apache so that all of the changes take effect:
sudo systemctl restart httpd
Visit your php info page (make sure you replace the example ip address with your correct one): http://12.34.56.789/info.php
Your screen should then look like this:
To close out the LAMP installation, open up the configuration file of Arch’s innitscripts and add the apache server and MySQL daemons to the list of programs that run upon server startup:
sudo systemctl enable mysqld httpd
Congratulations, you have now installed the LAMP server on Arch Linux!
See More
Once LAMP is installed, you have a great base on which to build your site. Check out this tutorial to see how to install Wordpress on Arch
Thanks for learning with the DigitalOcean Community. Check out our offerings for compute, storage, networking, and managed databases.
About the author
Former Director of Community at DigitalOcean. Expert in cloud topics including LAMP Stack, CentOS, Ubuntu, MySQL, SSL certificates, and more.
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