The default EDNS0 buffer size has changed to 1232, how big is the response when you use dig?
Perhaps increasing the edns buffer sizes would be a way out? Ondrej -- Ondřej Surý — ISC (He/Him) My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours. > On 18. 11. 2022, at 2:47, Andy Smith <a...@strugglers.net> wrote: > > On Fri, Nov 18, 2022 at 01:14:27AM +0000, Andy Smith wrote: >> What happens is that a NOTIFY is sent out, PowerDNS sees it and queries >> for SOA and logs this: >> >> Nov 18 00:25:26 daiquiri pdns_server[32452]: While checking domain >> freshness: Query to '2001:ba8:1f1:f085::53' for SOA of >> 'f.4.1.f.1.f.1.0.8.a.b.0.1.0.0.2.ip6.arpa' did not return a SOA > > Well, hours of head scratching then I send this email and suddenly find > something that is probably very relevant: > > "auth: slave zone soa check does not use tcp if udp answer was > truncated #10447" > https://github.com/PowerDNS/pdns/issues/10447 > > So, PowerDNS can't retry its SOA queries over TCP. > > I assume that bind9's behaviour has changed to be more correct and > there's nothing I can/should configure on that side to let this work > again. So I'll see what the PDNS folks have to say but it looks like > I'll have to upgrade all the PDNS servers and then make use of the > "secondary-check-sgnature-freshness=no" option: > > > https://doc.powerdns.com/authoritative/settings.html#secondary-check-signature-freshness > > Thanks, > Andy > -- > Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from > this list > > ISC funds the development of this software with paid support subscriptions. > Contact us at https://www.isc.org/contact/ for more information. > > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users -- Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users