Hi,
I've run into a possible bug/new feature/change of behavior with wild
card records (which uses CNAME), host(1) and the latest version of
PowerDNS authoritative server.
Essentially, PowerDNS version 2.9.21 returns the wild card record (which
has been setup as a CNAME, see below) when asking for an AAAA records
that do not exist.
Previous versions of PowerDNS, including Bind 9.4 with the same zone
data, will only return the IPv4 record, and no wild card record.
PowerDNS 2.9.21:
[EMAIL PROTECTED]:~$ host host.test.internal
Using domain server:
Name: ns2.test.internal
Address: 172.20.194.28#53
Aliases:
host.test.internal has address 34.34.34.34 <- A record
host.test.internal is an alias for catch.test.internal. <- AAAA record
host.test.internal is an alias for catch.test.internal. <- MX record
The records in PowerDNS is as follows:
+--------------------------------+-------------------------------------------------------+
| name | content | record_type |
+--------------------------------+--------------------------------------------------------+
| *.test.internal | catch.test.internal | CNAME |
| host.test.internal | 34.34.34.34 | A |
+--------------------------------+-------------------------------------------------------+
Bind 9.4.2 behaves the same as PowerDNS 2.9.20.
I can understand that this behavior is technically correct, and that if
I do not want this to happen, I should change my record_type for my wild
card from CNAME to A instead. I'm just not sure if this is is intended
behavior in the latest version of PowerDNS? I can't see this mentioned
in the change log?
Cheers,
Jaco
--
Behavior for host.test.internal against PowerDNS 2.9.20
[EMAIL PROTECTED]:~$ host -t AAAA host.test.internal
Using domain server:
Name: 172.20.32.2
Address: 172.20.32.2#53
Aliases:
host.test.internal has no AAAA record
[EMAIL PROTECTED]:~$ host -t A host.test.internal
Using domain server:
Name: 172.20.32.2#53
Address: 172.20.32.2#53
Aliases:
host.test.internal has address 34.34.34.34
--
Behavior for host.test.internal against PowerDNS 2.9.21
[EMAIL PROTECTED]:~$ host -t AAAA host.test.internal
Using domain server:
Name: 172.20.222.35
Address: 172.20.222.35#53
Aliases:
host.test.internal is an alias for catch.test.internal.
[EMAIL PROTECTED]:~$ host -t A host.test.internal
Using domain server:
Name: 172.20.222.35
Address: 172.20.222.35#53
Aliases:
host.test.internal has address 34.34.34.34
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