[dns-operations] Google Public DNS has enabled case randomization globally

abang at t-ipnet.net abang at t-ipnet.net
Mon Jul 31 20:24:34 UTC 2023

> Those are clear protocol violation, as the names are case insensitive from the very beginning (RFC 1034 + 1035), regardless of deploying the 0x20 draft.

RFC 1035 section 2.3.3 "Character Case" says, "When data enters the domain system, its original case should be preserved whenever possible". I wonder if that means to copy the qname from the query section (case sensitive) into the answer section.


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