Re: [dns-operations] Cloudflare public DNS sometimes forwards incomplete subset of NSEC RRs

2020-09-16 Thread Marek Vavruša
Hi Viktor, I forgot to update this thread, but this should be fixed. Best, Marek On Tue, 1 Sep 2020 at 10:19, Marek Vavruša wrote: > > Thanks Viktor, this looks like a bug in writing NSECs to the final response. > > On Mon, 31 Aug 2020 at 23:09, Viktor Dukhovni wrote: > > > > > > My

Re: [dns-operations] Cloudflare public DNS sometimes forwards incomplete subset of NSEC RRs

2020-09-01 Thread Marek Vavruša
Thanks Viktor, this looks like a bug in writing NSECs to the final response. On Mon, 31 Aug 2020 at 23:09, Viktor Dukhovni wrote: > > > My validating resolver downstream of CF 1.1.1.1 (among others) at times > sees "bogus" denial of existence for: > > _25._tcp.mx.runbox.com IN TLSA ? > >

Re: [dns-operations] Cloudflare public DNS sometimes forwards incomplete subset of NSEC RRs

2020-09-01 Thread Vladimír Čunát
On 9/1/20 9:58 AM, Stephane Bortzmeyer wrote: > AFAIK, Cloudflare uses Knot Resolver. I tested with another Knot > resolver and it works: I think they originally started the service quite close Knot Resolver code, but they've apparently diverged quite a bit since then (I don't know).  To be sure,

Re: [dns-operations] Cloudflare public DNS sometimes forwards incomplete subset of NSEC RRs

2020-09-01 Thread Stephane Bortzmeyer
On Tue, Sep 01, 2020 at 01:48:17AM -0400, Viktor Dukhovni wrote a message of 71 lines which said: > * The apex wildcard record and signature identically ONLY from > Google, Verisign and Quad9. From CloudFlare, I get the munin01 > NSEC record and signature twice, but this

[dns-operations] Cloudflare public DNS sometimes forwards incomplete subset of NSEC RRs

2020-09-01 Thread Viktor Dukhovni
My validating resolver downstream of CF 1.1.1.1 (among others) at times sees "bogus" denial of existence for: _25._tcp.mx.runbox.com IN TLSA ? This is because the set of NSEC records forwarded by Cloudflare for this domain is not complete. Looking across the major public DNS services: