[xing]

Gernot, try this:

Multiple vhosts (domains) can be bound to a Listener (IP:Port).

1) Login to web admin

2) Go to "Listeners" and you should have just one listener using port 80.

3) Go to port 80 listener and in the "Virtual Host Mapping" make sure there are two entires. Add or edit entries as necessary.

A. A vhost with domains field set to www.mydomain.com
B. A different vhost with domains field set to ap2.mydomain.com

4) Restart

For above it is assumed you already have 2 virtual hosts setup, one for www. and one for ap2.