I’m using the yast2 gui interface to configure apache. I think its called yast2_http_server.
I added one website with *:80 set as the virtualhost ID. When I go to add a second website with the same thing, it errors out with:
The IP address is already configured on another virtual host: *:80/mydomain.com.
I have another opensuse box with many websites in apache configured this way. But I forgot how I got around this issue.