[bitfolk] Re: IPv6 reverse DNS question

Hi Andy On 28/06/2024 16:35, Andy Smith via BitFolk Users wrote: I learned that mail-in-a-box uses NSD for its name server. After a bit of trial and error I believe I have now configured the zone correctly under the hood. The Bitfolk monitoring system reports a recovery and the mail-in-a-box self-test reports reverse DNS is now set correctly for both versions of IP. Yay! My custom zone is configured in its own file under /etc/nsd/nsd.conf.d/, and the main NSD config file imports everything in that folder, so I'm hoping this won't get overridden on upgrades. I am still seeing some errors in my syslog when NSD restarts though. ===== BEGIN LOG EXTRACT ===== notice: nsd starting (NSD 4.3.9) notice: nsd started (NSD 4.3.9), pid 2602 error: xfrd: zone 7.3.0.f.1.f.1.0.8.a.b.0.1.0.0.2.ip6.arpa: received notify response error REFUSED from 2001:ba8:1f1:f085::53 error: xfrd: zone richardskingdom.net: received notify response error REFUSED from 2001:ba8:1f1:f085::53 ... (repeats) error: xfrd: zone 7.3.0.f.1.f.1.0.8.a.b.0.1.0.0.2.ip6.arpa: max notify send count reached, 2001:ba8:1f1:f085::53 unreachable error: xfrd: zone richardskingdom.net: max notify send count reached, 2001:ba8:1f1:f085::53 unreachable ===== END LOG EXTRACT ===== The same pattern repeats for each secondary name server IP address (both IPv6 and IPv4) Any ideas what might be causing these errors? Cheers Richard.