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Given DoH / DoT uses TCP anyway, maybe it’s just time for DNS clients to switch to TCP by default too.

You won’t be able to disable UDP on DNS servers for a long time, if ever, but you could then more aggressively rate limit/restrict UDP queries vs TCP.

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Oh related though, there was a draft floating around for DNS over QUIC too, which ofc uses udp. I wonder if it has similar issues?

Its an RFC now. https://www.rfc-editor.org/rfc/rfc9250.html

QUIC isn’t stateless so won’t have the same issues. It’s effectively TCP over UDP.

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