How to host a website on your own server with a dynamic white IP?

Question

Domain Name System

There is a server on Arch, it works 24/7, on Raspberry Pi, the provider provides a dynamic white IP, it can be accessed through the 3rd level domain my_domain.example.org from the dynamic dns service, there is a 2nd level domain my_company.com, rented from nic.ru.

I need to host a site on this server of mine (the load is minimal), how can I redirect from my_company.com to an IP address that resolves to my_domain.example.org so that exactly my_company.com is displayed in the address bar in the visitor's browser?

PS And what to read on this topic to understand the details?

Answer 1

cname my_company.com to my_domain.example.org
but in general this is one of those perversions that suffer, not enjoy

Answer 2

A DNS record like CNAME will help you.
https://support.google.com/a/answer/112037?hl=en

Answer 3

What is the question?
How to register IP in dns records? Well, where the domain was bought there and registered, it takes 30 seconds. If it is still a white IP, a third-level domain from the provider is not needed here at all.
If access is only through this domain, but ip is not white, but register cname in the dns to the provider's domain.
In short, open an office with a domain, there are not so many options, as it were.