There are two ways of constructing a software design. One way is to make it so simple that there are obviously no deficiencies. And the other way is to make it so complicated that there are no obvious deficiencies.
By the way, they're optional but you download the entire domain's IN A records with a zone transfer.
http://en.wikipedia.org/wiki/DNS_zone_transfer
The zone transfer query type is AXFR. There's also the ZXFR query type which Wikipedia seems to have left out. ZXFR adds compression. dig supports both, IIRC.
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By the way, they're optional but you download the entire domain's IN A records with a zone transfer.
http://en.wikipedia.org/wiki/DNS_zone_transfer
The zone transfer query type is AXFR. There's also the ZXFR query type which Wikipedia seems to have left out. ZXFR adds compression. dig supports both, IIRC.
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