On Apr 27, 2017, 4:28 PM -0700, Paul Vixie via Unbound-users <[email protected]>, wrote:
> so in effect, TCP is not required, and will never be required. the > installed base and its long tail matter more than the wording of 1035. https://tools.ietf.org/html/rfc7766, proposed standard updates 1035 and 1123: " This document therefore updates the core DNS protocol specifications such that support for TCP is henceforth a REQUIRED part of a full DNS protocol implementation." Yes, I know about the "installed base" argument and usually agree with it. However, Internet standards evolve and, when it makes sense, the Internet follows suit. In this case, I think the benefits of TCP support given DNSSEC, privacy, spoof protection, etc., will be sufficient to move the needle over time. Regards, -drc
