Additional records missing when referenced with trailing dot

[Habbie]

With zone records like:

example.com NS  ns.example.com.
ns.example.com  A   10.0.0.1

powerdns will return no additional records; after a zone transfer to a slave node the trailing dot gets stripped, and the slave node will return the additional records.

While in NS records the trailing dot gets stripped, in SRV records it will be appended on the slave.

(Using sql backends and powerdns sync via AXFR)

[Habbie]

Author: anon
original poster: stbuehler@lighttpd.net

i was able to verify that data like "domain.cctld NS any.nameserver.gtld." in the gmysql backend will not give you the nameservers ip address in the additional section whereas "domain.cctld NS any.nameserver.gtld" does provide it.

IMHO a PowerDNS-wide policy regarding those terminating dots would be great as confusion about when to put them in and when not to is a regular support case within the users community.

• Stefan Schmidt

[Habbie]

Author: anon
ah i forgot about the version, it's the debian package pdns-server 2.9.22-3 for both of us.

• Stefan Schmidt

[Habbie]

Author: peter
Still present in 3.1. Interesting additional issue: when slaving, the hostname in an SRV record will get the trailing dot: 100 389 server1.test.com.

This means that additional data that is provided by a master may not be provided by a slave.

We can fix this in two ways:
(a) always strip the dot before lookups
(b) make sure we don't append the dot when inserting SRV (and, no doubt, other types).

Ideally we would do both.

[Habbie]

Author: peter
all of this is fixed in r2748!