I want to confirm my understanding of security of DDNS updates.
I have a stealth master "A" feeding slave "B" and "C".
I have allow-update-forwarding { any; } specified on "B" and "C".
If a client "D" presents an update to "B" or "C" it will automatically be
forwarded to "A".
If "B" or "C" are in the allow-updates ACL on "A" all updates will be
applied.
If "D" is in the allow-udates ACL on "A" (and not "B" or "C") the updates
from "D" will be applied. However an update from "E" presented to "B" or
"C" will be forwarded but not processed.
Is this correct?
Bob
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