Update 2: It is sorted out now, but if someone finds this, I have a question? In the age of shared VPSs I point my domain at a well-known endpoint of a major h

Update 2: It is sorted out now, but if someone finds this, I have a question? In the age of shared VPSs I point my domain at a well-known endpoint of a major hosting provider. How can I prevent people from also setting up a competing set of DNS records with my provider? How would digital ocean know where to send traffic if it had 2 ip addresses with identical DNS settings running on their platform.