Virtualhost for local access only

Is there any way to add a "local" virtualhost and restrict it for local access only ?

I tried to copy the domain config to vhost.conf and vhost_ssl.conf and changed the public IP within the Virtualhost container to 127.0.0.1, but that results in an error when try to reconfigure:
Maybe a bit of explanation:
My server was delivered with a...

Virtualhost for local access only