Computer name on the 2ip.ru service. How to hide/change it?

Question

Domain Name System

Raised proxy on VPS using 3proxy. I go through the proxy to 2ip.ru and see that the IP has changed (as intended), and in the "Computer Name" field, instead of the proxy IP, there is a 3rd-level domain given to me by the hosting provider.
Please explain how 2ip.ru finds out the proxy IP domain through which I entered? And how to change it or hide it from 2ip.ru and similar services?

Answer 1

By the new ip, he will find out which provider you are from, he has his own database of ip and provider correspondence, and since. ip is not hidden and your provider is always known, well, you hid the real one, and now you can see where you got the VDS, what else do you need?

Answer 2

Resolve ip to a name simply through writeback in dns, change this name to some neutral one