Asynchronous Full Transfer Zone,
Incremental Zone Transfer

Zone transfers are the easiest method of including ironDNS^® into existing name server infrastructures.

Simple Extension

Extension by ironDNS^® is an essential step towards diversity within a name server landscape and contributes considerably to the stability of the DNS.

If an already existing name server infrastructure is to be extended by ironDNS^®, an AXFR/IXFR is administered in a few steps:

• Allowing zone transfers from the IP ranges of the so-called “fetchers” of ironDNS^® on the source name servers and the corresponding firewalls.
• Key exchange (TSIG).
• Activation on the ironDNS^® side.
• If dealing with a top level domain, the name servers of ironDNS^® have to be registered with IANA as a last step.