We run a DNS cluster using two installs of cPanel DNS only. I think it's a great setup but when we add say a dedicated server customer to the cluster their server or any other server tied to the cluster for that matter has full access to see/modify all DNS zones in the cluster. It'd be nice if there was a way to only allow the server to see/modify zones that are local to the server. Is there any way to disable that short of setting them up as a reseller and removing the DNS functions?