That's two name servers with truncation bugs at small EDNS buffer sizes: CommunityDNS and IronDNS.
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@jedisct1 Note missing OPT records in the replies. This makes BIND add the servers to its no-EDNS blacklist. -
@jedisct1 Added fun is BIND 9.10+ uses bufsize=512 for its initial query to a server! - 1 more reply
New conversation -
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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