I’m using Wordpress Mu and Drupal in some of my sites.

But when you want to use wordress mu and use drupal as a service for multiple subdomains you need to do some changes on configurations of server. ( In here i must thank to one of my friend )

Here’s how you do it on a plesk powered server :

1. There’s a folder in named conf in the domain you want to configure. The path will be like this : /var/www/vhosts/domain.com/conf. Create a file with a name vhost.conf to there (using pico vhost.conf for ex). Write a line ServerAlias *.domain.com in it. And save it.

2. Open plesk. Go to domain’s DNS settings. Add an A record *.domain.com

After all run this command : /usr/local/psa/admin/sbin/websrvmng -v -a

That’ll help.