Is it possible to transfer the user from the site to the local site?

Question

Domain Name System

Hello, there is a provider's website that contains links to the provider's local websites.
1) Local torrent tracker
2) Information on DC++ and the client itself
3) User account
With the first two, everything is difficult, since the user searches the site on the Internet
With the account, everything is simple, since the site has a provider.ua domain and the user account in LAN is called cabinet .provider.ua in the domain settings specified a subdomain and an A record from the IP of the local server.
Two ideas immediately arose in my head
1) Write instructions on how to register data in the host file
2) Write how to register dns that looked at the local server
But, I would like to know if it is possible to do it myself so as not to spoil your nerves with lamers by subscribers.
Whether it is possible to transfer somehow DNS or A record to the link?

Answer 1

If you administer your own DNS zone, then why can't you register local addresses in it?
It doesn't matter through which DNS (your or not yours) the search will be performed - the answer will be returned
Either I did not understand the essence of the problem

Answer 2

Nothing can be done without access to the provider's dns-server. And asking users to register your sites in hosts is not the best idea. Therefore, you have two options - ask the administrator to make a change on the dns-server or allocate "beautiful" IP addresses for you and use them without bothering with domains