Hi,
recently, i noticed that slave PowerDNS servers are adding NULL
records into database after AXFR. I found the explanation here
(non-terminals):
https://doc.powerdns.com/authoritative/backends/generic-sql.html#rules-for-filling-out-dnssec-fields
Also, i noticed one quite a big problem with non-terminals - they are
causing that master and slave are having different behavior while
resolving wildcard subdomains. Imagine this zone:
example.com A 1.1.1.1
*.example.com A 1.1.1.1
With only this, both master and slave (running PowerDNS) will be able
to resolve this hostname:
one.two.example.com
Now add this record:
test.two.example.com A 2.2.2.2
After AXFR, slave will add non-terminal record for two.example.com AND
stops resolving two.example.com and *.two.example.com (with NOERROR
but empty answer). Master continues resolving everything. Is this
intended behaviour? PowerDNS 4.0.3.
azur
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