Multisites with an additional parked domain

• Using PHP MySQL or any other database application, create a database by the name "domain2"
• Grant full privileges to the database to the default user
• Using phpMyAdmin, create the tables and default data in your database by suitably modifying the drupal database file ("database.sql").
• Using cPanel or ftp, create a sub-directory in the "/sites" directory called "domain2.com"
• Copy the /sites/default/settings.php to the new directory /sites/domain2.com/settings.php
• Make changes to the following line in the new settings.php file
  $db_url = 'mysql://db-username:db-password@localhost/new-db-name';
• Create a symlink from the new location to the main site, using the command (for example):
  
  
  ln -s /home/username/public_html/
/home/username/public_html/domainname2
  
  Here, I am assuming your webhost has parked your new domain at "/domainname2" folder of your main account. In this example, the url http://domainname2.tld should resolve to the physical folder /home/username/public_html/domainname2 on your server (or shared server).

If you don't have shell access and your webhost does not support creating symlinks, try out the symlink() function in php. Here is a step by step guide to using symlink function if you dont have shell access. Note that for this to work, it is necessary to delete the physical folder "/home/username/public_html/domainname2" from your web server, as the link created by symlink() is only symbolic and not actual. The article explains that in detail.

Now access your new domain name at the address http://domainname.tld

Create your first user account, which should be the admin user.

Original Post: http://drupal.org/node/107347