Massive increase of SERVFAIL after April 28th 2025.

Thu May 1 17:21:24 UTC 2025

> /var/log/named/auth_servers.log:01-May-2025 11:05:26.694 lame-servers: info:
> SERVFAIL unexpected RCODE resolving 'isis.lip6.fr/AAAA/IN': 193.51.24.1#53

do some queries for these many examples, like

dig @193.51.24.1 isis.lip6.fr AAAA

dig @132.227.60.2 osiris.lip6.fr AAAA

dig +norec @198.51.44.72 github.com

from the same system you are running named