Dynamic update response
bindjack at freemail.hu
Tue Sep 1 21:17:09 UTC 2009
My question is about the fields in the dynamic update response.
As RFC 2136 describes there are 2 possible dynamic update responses:
I. The ZOCOUNT, PRCOUNT, UPCOUNT, COUNT fields and associated sections are copied in the response packet
II. Placing zeros (0) in the these "count" fields and not including any part of the original update
Bind seems to follow the second rule.
Is it possible to configure Bind server to copy the ZOCOUNT, PRCOUNT, UPCOUNT and ADCOUNT fields and associated sections in the response packet?
Dynamic Updates in the Domain Name System (DNS UPDATE)3.8 - Response At the end of UPDATE processing, a response code will be known. A response message is generated by copying the ID and Opcode fields from the request, and either copying the ZOCOUNT, PRCOUNT, UPCOUNT, and ADCOUNT fields and associated sections, or placing zeros (0) in the these "count" fields and not including any part of the original update. The QR bit is set to one (1), and the response is sent back to the requestor. If the requestor used UDP, then the response will be sent to the requestor's source UDP port. If the requestor used TCP, then the response will be sent back on the requestor's open TCP connection.
Thanks in advance.
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