Multiple round trips to get 100 extra A's you don't want or need is not decent UX.
Low latency, statelessness, ability to use same query packet concurrently w/multiple servers, etc.
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Also bounding the size of the response.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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non of these things are related to edns.
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To do edns you have to first know if the server you're querying supports it.
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no you don't have to, you try and 99% or so you're right. edns is now 15 years old.
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the bigger problem is stubs don't want to evolve with the spec, which makes me sad as server author :(
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The whole point of a standard protocol is that stubs don't have to evolve.
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RFC 1035 has everything a stub needs. Advanced features are for inter-DNS use, not stub-to-DNS.
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If a static-linked ping from 1989 doesn't work with your dns, it's your dns that's broken, not the stub.
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this is wrong analogy. You're asking for improved UX and refuse to use improved version of the protocol
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