Hello Casey,

On Thu, 2021-03-11 at 09:58 -0700, Casey Deccio wrote:
> > On Mar 11, 2021, at 2:59 AM, Peter van Dijk <[email protected]> 
> > wrote:
> > 
> > On Thu, 2021-03-11 at 10:33 +0100, Peter van Dijk wrote:
> > > That actually looks fine to me - DS is signed by parent (dla.mil),
> > > DNSKEY is signed by child (gtm-ext.dla.mil).
> > 
> > This means that the error reported by DNSViz:
> > 
> > RRSIG quicksearch.gtm-ext.dla.mil/A alg 8, id 29085: The Signer's Name 
> > field of the RRSIG RR (gtm-ext.dla.mil) does not match the name of the zone 
> > containing the RRset (dla.mil).
> > 
> > does not seem like the right conclusion to me.
> > 
> > (To be clear, the name does not deserve to resolve because of all the 
> > problems, but DNSViz is not correctly pointing to the pain I think.)
> 
> That's a fair point.  *Normally* the error would be something more like: "No 
> RRSIGs were found covering the RRset".  But in this case, there *was* an 
> RRSIG, so it didn't get *that* error.  DNSViz used to complain when an RRSIG 
> didn't align to a DNSKEY, but that was changed because sometimes there were 
> legitimate reasons for that (like pre-publishing RRSIGs as part of an 
> algorithm rollover).  So all we were left with was an error about the RRSIG 
> itself (i.e., name didn't match).

Thank you for explaining that history. I certainly appreciate how your
errors have to guess at the real world things that are happening.

>   Probably the "no RRSIG" error should be modified to be "no RRSIG for an 
> existing DNSKEY".

But, in this case, the DNSKEY does exist, and a DS is pointing at it
correctly, and the problems are almost unrelated to those, as far as I
can see. My impression is that DNSViz is confused for the same reason a
default PowerDNS Recursor gets confused on this name - conflicting
facts from queries *other than* those DS and DNSKEY queries.

Kind regards,
-- 
Peter van Dijk
PowerDNS.COM BV - https://www.powerdns.com/

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