Set on. Enable PHP web applications.
Add a server with +.
Domain name: www.example.ch
Store Site Files in: Create a folder example.com in Dropbox/public_html and set it as folder.
Additional domains: example.ch
Index files: keep only index.php
Advanced settings: Allow overrides using .htaccess files
Set on. Forwarding servers 184.108.40.206 and 220.127.116.11
Perform lookup for clients of the local network
Add host name with +
Host name: example.ch
IP addresses: your IP.
Host name: www.example.ch
IP addesses: your IP.
Note:Shared folder checks filesharing in System Preferences. Uncheck that.
The site should now be functional locally. Check on Safari on the Macmini.
Go to Administer Domains. Allocate the domain you want to host with LINK.
Got to Basic Configuration.
Click on the icon on the right of the domain "Edit name server".
Create an A entry for example.com and for *.example.com to your IP.
Wait one to two hours.