September 2012
Intermediate to advanced
1680 pages
88h 3m
English
The standard method for zone transfers, which transfers the entire contents of a DNS zone from the primary server to the secondary server, is known as asynchronous zone transfer (AXFR), or full zone transfer. This type of zone transfer copies every item in the DNS database to the secondary server, regardless of whether the server already has some of the items in the database. Older implementations of DNS utilized AXFR exclusively, and it is still utilized for specific purposes today.
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