Domain Controller Zone Transfer
This is needed for redundancy.
Domain controller zone transfer. In this way it is not necessary to configure a separate dns replication topology that uses ordinary dns zone transfers because all zone data is replicated automatically by means of active directory replication. It is one of the many mechanisms available for administrators to replicate dns databases across a set of dns servers. A zone transfer uses the transmission control protocol tcp for transport and takes the form of a client server transaction.
Dns zone transfer also sometimes known by the inducing dns query type axfr is a type of dns transaction. There are several zone transfer methods but the most common one uses the axfr protocol. The standard zones that were previously active directory integrated can be converted back to active directory integrated on the replacement dns server if it s a domain controller.
To all domain controllers in the domain for windows 2000 compatibility. To all dns servers running on domain controllers in this domain. Verify that the soa resource records on each zone contain the correct name for the primary server and that the ns resource records for the zone s are correct.
Domain name system dns servers running on domain controllers can store their zones in active directory domain services ad ds.