On 1/30/25 18:28, Dominik Derigs wrote:
Hey Simon,
Thank you for the tag. We've pushed out 2.91test9 on the same day to all
Pi-hole beta users. We have no real idea how many are out there but we
see at least roughly 100 participants in our discussion platforms. There
are probably many more which never speak up.
So far, everything has been smooth but this morning we received a
response from a very careful user having noticed something odd. Their
configuration looks like
server=8.8.8.8
server=8.8.4.4
plus thousands of lines for individual domains to other servers like
server=/abcnews.com/1.1.1.1
server=/abcnews.com/9.9.9.9
What they have seen now is that - rather often - queries which have NO
individual server=// lines are still sent to 1.1.1.1 although they
should have been sent to the default servers 8.8.8.8,8.8.4.4.
I have not had time to try to reproduce this inside dnsmasq myself but
maybe it already rings a bell as to what may be happening (like maybe
not resetting the next server to be used, etc.) in case of a config like
the one I described above.
Best
Dominik
Sadly, no bells are ringing. I looked at the obvious code, and can't see
any obvious problems. The code which maps query domain onto servers )in
src/domain-match.c) hasn't changed since 2021/2022 apart from
b087cf4a6c3dd4c323a099770a44c24812381bf4 which looks unlikely as a culprit.
Logs would be useful.
Cheers,
Simon.
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