What happens if a Route 53 name server receives a query without EDNS0 information?
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What happens if a Route 53 name server receives a query without EDNS0 information?
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已提问 4 年前499 查看次数
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Assuming the query is otherwise valid and directed to the correct server, it would respond. EDNS50 is an optional extension to the DNS protocol; it's absolutely not required and a good number of clients do not in fact support it at all.
已回答 4 年前
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