AW: Correlation between NOTIFY-Source and AXFR-Source
Anand Buddhdev
anandb at ripe.net
Fri Mar 10 10:03:30 UTC 2023
On 09/03/2023 21:25, Klaus Darilion via bind-users wrote:
[snip]
> PS: Latest PowerDNS tries the NOTIFY source first. MAybe someone
> knows how Knot and NSD behave?
Knot DNS only tries to refresh from primaries that sent the NOTIFY. It
doesn't even try the other configured primaries. However, if it is
trying to refresh a zone upon expiry of the refresh timer, then it tries
all the configured primaries in order.
NSD, like PowerDNS, tries to XFR from the primary that sent the NOTIFY
by shuffling it to the top of the primaries list. If that fails, it
continues trying the other primaries.
Regards,
Anand
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