Multiple domains using the same database

Multiple domains using the same database
Drupal 4.5.x or olderLast modified: January 16, 2007 - 00:17
If you want to host multiple domains (or subdomains) on top of the same database (e.g. http://example.com/ and http://www.example.com/), simply use symbolic links to setup the required configuration files:

$ ln -s sites/example.com sites/www.example.com

$ ls -l sites
-rw-rw-r--    1 drupal   drupal      sites/example.com
lrwxrwxrrx    1 drupal   drupal      sites/www.example.com -> sites/example.com

If your installation isn't in the root folder then you need to specify the path to the Drupal installation. For example if the URL to your installation is http://www.example.com/drupal/ you would use sites/www.example.com.drupal with a settings.php file in it.

If you want cookies to be shared between two sites, you will need to set the value of PHP's session.cookie_domain correctly. In the case above, set it to ".example.com". You can do this through Drupal's .htaccess file.