[dns-operations] Google DNS Admin

[Puneet Sood]

[Google Public DNS engineer here]

As others have mentioned this appears to be a connectivity or load
problem. We are getting successful resolution in about 50% of metros
globally and timeouts in the rest of the metros. The locations are
consistent across 3 attempts.

FWIW we see failures in Belgium but not in Amsterdam.

For Google Public DNS specific problems, you can reach us via mailing
list or issue tracker:
https://developers.google.com/speed/public-dns/groups.

Thanks,
Puneet

On Wed, Jan 8, 2020 at 10:26 AM Viktor Dukhovni <ietf-dane at dukhovni.org> wrote:
>
> On Wed, Jan 08, 2020 at 02:57:17PM +0000, Tony Finch wrote:
>
> > Daniel Corbe <daniel at corbe.net> wrote:
> > >
> > > Every well-known recursor is returning valid results for as57335.net
> > > except for 8.8.8.8 and 8.8.4.4 and I'd like some assistance getting
> > > down to the root of the issue.
> >
> > Maybe connectivity problems? I can't get to any of the nameservers from
> > 131.111.0.0/16 or 2a05:b400::/32. DNSviz can see the domain OK but
> > zonemaster cannot.
> >
> > https://dnsviz.net/d/as57335.net/dnssec/
> >
> > https://zonemaster.net/result/0e70c5e9893a0ce8
>
> Same for me, only I see the IPv4 NS hosts in 185.203.204/22:
>
>     @a.ns.as57335.net.[185.203.204.10]
>     @b.ns.as57335.net.[185.203.205.10]
>     @c.ns.as57335.net.[185.203.206.10]
>     @d.ns.as57335.net.[185.203.207.10]
>     ;; connection timed out; no servers could be reached
>
>     @a.ns.as57335.net.[2a0c:d2c0::53:5:7335]
>     @b.ns.as57335.net.[2a0c:d2c2::53:5:7335]
>     @c.ns.as57335.net.[2a0c:d2c4::53:5:7335]
>     @d.ns.as57335.net.[2a0c:d2c6::53:5:7335]
>     ;; connection timed out; no servers could be reached
>
> The delegation and glue RRs from .net were:
>
>     as57335.net. IN NS a.ns.as57335.net.
>     as57335.net. IN NS b.ns.as57335.net.
>     as57335.net. IN NS c.ns.as57335.net.
>     as57335.net. IN NS d.ns.as57335.net.
>     ;
>     a.ns.as57335.net. IN A 185.203.204.10
>     a.ns.as57335.net. IN AAAA 2a0c:d2c0::53:5:7335
>     b.ns.as57335.net. IN A 185.203.205.10
>     b.ns.as57335.net. IN AAAA 2a0c:d2c2::53:5:7335
>     c.ns.as57335.net. IN A 185.203.206.10
>     c.ns.as57335.net. IN AAAA 2a0c:d2c4::53:5:7335
>     d.ns.as57335.net. IN A 185.203.207.10
>     d.ns.as57335.net. IN AAAA 2a0c:d2c6::53:5:7335
>
> --
>     Viktor.
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