Drupal is an advanced and powerful content management framework, built in the PHP programing language and supported by a database engine like MySQL. Drupal provides a flexible system that can be used to manage websites of all different sorts and profiles. Drupal is capable of providing the tools necessary to create rich, interactive "community" websites with forums, user blogs, and private messaging; Drupal can also provide support for multifaceted personal publishing projects and can power podcasts, blogs, and knowledge bases systems all within a single unified system.
As the system's functionality is highly modular, one might even be inclined to think about Drupal not strictly as a content management system, but rather as a content management framework. In addition to a the core infrastructure, there are a number of Drupal modules that allow administrators of Drupal sites to provide specific functionality to the users of their sites without needing spend resources on custom development. Furthermore, Drupal has an advanced theming engine that allows for a great deal of flexibility for displaying content in a visually useful and productive manner.
Before we begin with the Drupal installation, there are few other guides in the Linode Library that provide instructions for installing the necessary prerequisites. If you're new to Linux system administration, consider our using Linux guides. Before you can install Drupal, please complete our "getting started guide" to get a fully updated and running system. Then, you will want to use one of the LAMP guides to get a functioning Linux/Apache/MySQL/PHP stack installed on your Linode. If you want more information about installing Apache or the MySQL database, our guides provide some additional information regarding these dependencies.
With these dependencies installed and running we're ready to begin installing the Drupal Content Management system. We assume that you have a working SSH connection to your server and database credentials to access your database server.
The Drupal software is frequently updated as bugs are patched and security vulnerabilities are found and removed. Visit the Drupal download page to find the latest version of the Drupal 7 Release, and download that file rather than the file mentioned in the example below.
If you installed and configured your Apache server as described in our other guides, the publicly accessible DocumentRoot will be in a directory similar to /srv/www/ducklington.org/public_html/. You will change directories to the non-publically accessable /srv/www/ducklington.org/ directory, using the following command:
Issue this command to download Drupal with wget:
Extract that folder with the following command:
tar -zxvf drupal-7.7.tar.gz
Remember to change the commands above to reflect the latest version that you downloaded. Now we can copy this instance of Drupal to your web accessible directory:
cp -R drupal-7.7/* /srv/www/ducklington.org/public_html/drupal/
If you want Drupal to be installed in the root level of your domain copy the files into the public_html/ directory rather than into the public_html/drupal/ directory.
First, we need to copy the default.settings.php file provided in the Drupal distribution to a settings.php file. Do this by issuing the following commands:
cd /srv/www/ducklington.org/public_html/drupal/sites/default/ cp default.settings.php settings.php
Secondly, we'll need to create a drupal/sites/default/files/ directory that's writable by the web server, by changing the group ownership and permissions of the directory to www-data or whichever user group your Apache instance runs under:
mkdir /srv/www/ducklington.org/public_html/drupal/sites/default/files/ chgrp www-data /srv/www/ducklington.org/public_html/drupal/sites/default/files/ chmod 775 /srv/www/ducklington.org/public_html/drupal/sites/default/files/
You will also want to grant Drupal (and thus the web server) the ability to read and write the settings.php file during the installation process. Note, that we will revoke these permissions following the installation. Issue the following command, while still in the drupal/sites/default/ directory:
chmod 757 settings.php
Now you can follow the Drupal installation process by visiting http://ducklington.org/drupal/install.php, altering the previous URL to reflect your domain and the actual path to your Drupal files. You will arrive at an iconic Drupal page and if you select "Install Drupal in English," you will enter the installation process.
The installation process is fairly straightforward and asks you to provide information regarding your database, your site, and your administrative users. Follow each step as instructed. When you've completed the installation process you can remove the write access to the settings.php file with the following command:
chmod 755 /srv/www/ducklington.org/public_html/drupal/sites/default/settings.php
You're now ready to begin using Drupal.
Because Drupal is such a flexible and versatile system, it is difficult to recommend any particular set of practices for effective Drupal administration. The following guidelines and suggestions may be helpful on your journey:
This guide is licensed under a Creative Commons Attribution-NoDerivs 3.0 United States License.
Last edited by Matthew Cone on Friday, August 17th, 2012 (r3013).