Information for: DEVELOPERS   PARTNERS

Multisite definition

For more information about Drupal terms and terminology, see the Help Center Drupal term index.

Using Drupal, you can configure several smaller websites to share a common set of Drupal core files, contributed modules, and theme files — all of these websites share a common docroot. This is called multisite Drupal.

Acquia uses the multisite feature of Drupal with its Acquia Cloud Site Factory products to provide a Drupal software as a service experience, allowing many users access to their own Drupal website development environments.

Using multisite naming tools (such as the sites.php file) and naming conventions (such as naming a multisite directory your website’s URL), requests for specific URLs can be routed to specific Drupal multisite directories. By default, these directories are located at docroot/sites/multisite-directory.

When working with a single docroot, Drupal core updates or module updates in the /sites/all/modules folder will affect all of the multisites contained in the docroot. This behavior can be useful when quickly rolling out updates and security fixes, but can also require caution, as changes that work fine with one multisite website may not work as desired on other websites in the multisite docroot. As with any Drupal implementation, be sure to test any changes across multiple multisite websites and to follow standard security procedures.

For information about setting up multisite on Acquia Cloud, see About Drupal multisite installations.