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Do I need a second domain to run my own authoritative dns server? (lemmy.world)

submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]

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I have a static ip (lets say 142.251.208.110).

I own the domain: website.tld

My registrar is godaddy.

If I want to change my nameserver godaddy won't allow me to enter a static ip. It wants a hostname. I observed that many use ns1.website.tld and ns2.website.tld.

I don't understand how this can work because ns1.website.tld would be served by my dns server which is not yet known by others.

Do I need a second domain like domains.tld where I use the registrars dns server for serving ns1.domains.tld which I can then use as the nameserver for website.tld?

I would like to avoid the registrars nameserver and avoid getting a second domain just for dns.

Thank you for your input.

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[–] [email protected] 13 points 7 months ago (2 children)

The thing you want is "glue records" the upper level server would serve ns1.example.com (this is an approved domain for example use, better to use example.com than making your own example up) as the authoritative name server. Then provide the glue record which says "ns1.example.com is at IP address X".

It should ask for IP addresses as well as hostname. Otherwise they only assumed people will "host" their domain in another hosted, as opposed to self-hosting.

In that case (and in any other case) change your registrar to someone else who supports glue records.

[–] [email protected] 7 points 7 months ago (1 children)

I use porkbun.com for my domains, which is excellent, and also has glue record support.

https://kb.porkbun.com/article/112-how-to-host-your-own-nameservers-with-glue-records

[–] [email protected] 2 points 7 months ago (1 children)

I just switched to porkbun. Saves me about 20EUR per year. Thanks for the tip.

I missed the keyword "glue records". Ultimately I managed to get my dns server to work but decided against using it for now as the acme plugin is not able to do what I want. https://github.com/mariuskimmina/coredns-tlsplus/issues/2

[–] [email protected] 2 points 7 months ago

Yeah porkbun is good.

To see how the glue records work, you can run dig +trace example.com

This answer goes into detail how it works behind the scenes.

https://superuser.com/questions/715632/how-does-dig-trace-actually-work

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago) (1 children)

What do I take if I need more example domains on the second level? Do I use otherexample.com?

[–] [email protected] 2 points 7 months ago (1 children)

RFC 2606 is your friend ;⁠-⁠)

https://datatracker.ietf.org/doc/html/rfc2606

[–] [email protected] 2 points 6 months ago

Just read it. Awesome. Thanks a lot.