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local DNS server does not work as expected (lemmy.ml)

submitted 2 months ago by [email protected] to c/selfhosted

11 comments fedilink hide all child comments

So I am working on my home server. I installed docker and use a dnsmasq container as my dns server to resolve local ip adresses.

Laptop and server are both linux (ubuntu LTS 24.4)

What works:

'resolvectl status' shows the ip of my dns server
i can ping the ip of the dns server (that will run other stuff like nextcloud soon as well)
i can use nslookup to resovle server.local to the correct ip address (even after changing the entry, so its not the cache in my laptop)

what does not work:

i can not ping server.local (- for testing i have to stop the systemd-resolved.service to run the dnsmasq server, or else there are port collisions, but that should not be the problem i guess. I am happy to hear your solution :))
i can also not use ssh to log in to server.local, ip address works

What am i missing?

Thanks a lot already! BTW: ZFS is crazy nice :D

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[–] [email protected] 2 points 2 months ago (3 children)

So in the dnsmasq.config file is this entry: 'address=/server.local/192.168.178.10' and using nslookup it resolves it correctly

[–] maxwellfire 2 points 2 months ago (2 children)

Does it resolve correctly from the laptop or the server. What about resolvectl query server.local on the laptop?

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

When I am on the server, it can even ping the domain. On my laptop, it can only resolve the domain to the correct ip

[–] maxwellfire 1 points 2 months ago

Could you post the specific output of the commands that don't work? It's almost impossible to help with just 'It doesn't work'. Like when ping fails, what's the error message. Is it a timeout or a resolution failure. What does the resolvectl command I shared show on the laptop. If you enable logging on the DNS server, do you see the requests coming in when you run the commands that don't work.