How to untie a domain from VDS/VPS?

Question

linux

I bought VDS on OVH hosting, put my website on it.

The host name that gave the hosting is attached to the VDS.

How to untie it so that when you go to it, the site does not open?

Answer 1

hostnamectl set-hostname new_name
On the screen PTR record. In the IP address settings in the hoster panel.

Answer 2

In the web server config, set the native domain in the host

Answer 3

Correctly configure the default Virtual Host in the settings of the web server that serves your site.
This is a host that accepts all requests to your ip address and which apparently you have one at all - most likely you have not created a separate one for your site.
Or add a separate Virtual Host with a DNS name that you painted over and then everything depends on your imagination - a stub page, 404, a redirect somewhere.