[Pdns-users] recursor failing to pick up change in master .ca zone file

[Peter van Dijk]

On Mon, 2020-11-16 at 16:17 +0000, Brian Candler via Pdns-users wrote:
> Or were you getting NXDOMAIN for the query (for a newly-created domain?)  Negative answers are also cached. The .ca SOA record says they can be cached for one hour:
> ;; ANSWER SECTION:
> ca.            3585    IN    SOA    prdpublish04.cira.ca. admin-dns.cira.ca. 2011161530 1800 900 3456000 3600

One could get even more unlucky:

$ for f in $(dig +short ns ca. | sort) ; do echo $f:$(dig +noall +auth a doesnotexist-234234234.ca @$f) ; done
any.ca-servers.ca.:ca. 3600 IN SOA prdpublish04.cira.ca. admin-dns.cira.ca. 2011171330 1800 900 3456000 3600
c.ca-servers.ca.:ca. 3600 IN SOA prdpublish04.cira.ca. admin-dns.cira.ca. 2011171330 1800 900 3456000 3600
j.ca-servers.ca.:ca. 3600 IN SOA prdpublish04.cira.ca. admin-dns.cira.ca. 2011171330 1800 900 3456000 3600
x.ca-servers.ca.:ca. 86400 IN SOA prdpublish04.cira.ca. admin-dns.cira.ca. 2011171330 1800 900 3456000 3600

1 of the 4 NSes (as seen from where I am) advertises a full day!

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