[dns-operations] Minimalistic DNS server for SOA and AXFR

Anand Buddhdev anandb at ripe.net
Tue Jul 17 14:26:22 UTC 2012


On 17/07/2012 15:33, Mark Andrews wrote:

> Actually named does do SOA queries over TCP before AXFR.

Hi Mark,

On my MacOS X laptop (which comes with BIND 9.7.3-P3), I didn't see SOA
queries over TCP. I saw a SOA query over UDP, followed by an AXFR
request over TCP. Besides TC in a UDP response, what would cause BIND to
do an SOA query over TCP?

Anand



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