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I understand how I can change the dns settings for my domains by editing my bind configs, when I run my own name-servers. I know that I can define the name-servers with my registrar via their online control panels. But I have no idea how that part works…
How does my registrar store the data about the name-servers? Is it something clever, like them having the authority to store NS records in the root name-servers?
I’m confused by this part, can anyone explain?
The registrar is responsible for setting the Root DNS entry that says, ‘When someone asks for stackoverflow.com, tell them that the authoritative DNS is xxx.xxx.xxx.xxx’. They have an interface that allows them to make changes to the records they own.
Then the requester must go to the authoritative DNS (Which is the one you specified to your registrar was your DNS) to find the IP for stackoverflow.com, any subdomain of it, email server, and other DNS records pertaining to that domain.
-Adam