Actually this is not new feature, but because I re-tested that functionality today, I found it's good time to describe it in a few words.
Integration in this case means that you can configure DNS server records while adding new virtual hosts for apache HTTP server (with YaST, both on the same machine)
First - DNS server must be installed, enabled and running:
Then add new zone (it must be type "Master"):
Then in yast2-http-server module add new virtual host. Server name belongs into dns zone "example.com" we configured in yast2-dns-server:
Virtual Host ID must be valid IP address
And here we can see there is button "Add to Zone" which in this case will add record www.example.com with IP address 10.20.30.40 into example.com zone
When you open YaST DNS server again, you can see that new record for "example.com" zone was correctly added.