Trying again on SERVFAIL

[Alessandro Vesely]

On Thu 11/Feb/2021 10:44:58 +0100 Havard Eidnes wrote:
>> Still, being able to differentiate a local network congestion from a
>> remote bad configuration would help.
> 
> That's true.  There's
> 
>    https://tools.ietf.org/html/draft-ietf-dnsop-extended-error-16
> 
> which look promising, trying to make it possible to distinguish
> between the various reasons a recursor might choose to return a
> SERVFAIL response.  It uses an EDNS option to communicate the
> additional information.


Commendable effort!


> As for its implementation status in general or in BIND in
> particular I'll admit that I don't know off-hand.


Yeah, by the time it lands on Debian's glibc we'll have grown a long long 
beard.  I'm still missing RES_TRUSTAD...


Best
Ale
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