https://www.ietf.org/proceedings/31/int/dnsind.html
DNS IXFR, Notification, and Dynamic Update Working Group (DNSIND)
working groupdnsnotificationdynamicupdate
https://community.f5.com/discussions/technicalforum/port-should-be-opened-to-allow-an-axfrixfr/111674
Port should be opened to allow an AXFR/IXFR | DevCentral
Hi everyone, is there anybody know " Which port should be opened to allow an AXFR/IXFR connection to be established to a DNS listener?" It would...
portopenedallowdevcentral