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Help! DNS A Records only ones getting filtered. (lemmy.world)

submitted 2 weeks ago by Bluesheep@lemmy.world to c/selfhosted@lemmy.world

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I’m pulling my hair out over this. I’ve got a proxmox homelab, an LXC running technitium installed from TTeck’s script.

The DNS server is also doing DHCP for my network. I have an authoritative zone for ‘.lan’

I can get NS, SOA, TXT records from the DNS server, but no A records! The DNS query logs show that it gives an answer, and if I am on the DNS server itself I get an answer, but no other machines on the network hear the reply.

I think this means the DNS server is working properly. There are no FWs in the way as I can resolve other types.

Where else can I look, or how can I diagnose this? I am completely at a loss.

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[–] possiblylinux127@lemmy.zip 2 points 1 week ago (1 children)

You also could do nslookup on Windows

[–] hemmes@lemmy.world 1 points 1 week ago (1 children)

nslookup is available on macOS and most Linux distros as well (and very helpful indeed).

[–] possiblylinux127@lemmy.zip 1 points 1 week ago (1 children)

Don't you mean dig

[–] hemmes@lemmy.world 1 points 1 week ago

Well, dig is available also of course, but nearly all distros still include nslookup despite it getting deprecated. I like the simplicity of its interactive mode.

Host is also really great with more human-readable output.

Don’t get me wrong, when things are getting hairy, you’re going to make a lot of use of dig. I just find that most troubleshooting can be taken care of a lot simpler with host or nslookup.