[Samba] Samba 4.2.14 Internal DNS not returning DNAME records?

[Kris Lou]

I have a bit of an oddity here: I'm using Samba 4.2.14 with AD, using
Samba's internal DNS to serve to my domain (and forwarding others to Google
Public DNS 8.8.8.8).

However, it looks like client queries (and subsequent forwards) to a
vendor's URL (www.pitneybowes.us) fail, but are successful if I query

Server: xxx.xxx.xxx.xxx
Address: xxx.xxx.xxx.xxx#53
** server can't find www.pitneybowes.us: SERVFAIL
Server: 8.8.8.8
Address: 8.8.8.8#53
pitneybowes.us dname = pitneybowes.com.
www.pitneybowes.us canonical name = www.pitneybowes.com.

The only thing out of the ordinary here is the existence of a DNAME record
-- which to the best of my new understanding fails upon queries on A
records.

So my question is, are DNAME records something that Samba's internal DNS
can't handle?

Can somebody else using the Internal DNS verify this?

Thanks,
-Kris


Kris Lou
***@themusiclink.net

[Kris Lou]

CC: List

Thanks for the tip!

Kris Lou
***@themusiclink.net

---------- Forwarded message ----------
From: Andrew Bartlett <***@samba.org>
Date: Fri, Jul 15, 2016 at 3:23 PM
Subject: Re: [Samba] Samba 4.2.14 Internal DNS not returning DNAME records?

Can you try git master? Otherwise, while I see some IDL to parse a
DNAME, I don't see any specific code, so any support will be
accidental
as part of the general forwarding case.

Thanks for checking (and for all of your work on this). I'm
currently using Sernet's 4.2 on CentOS, so I'll have to build a box
to verify. I'll try to get to it at some point.

Additionally, we don't have great support for large packets and TCP
forwarding, as I understand it.

I suppose the other path is to deploy Bind, correct?

Yes.

--
Andrew Bartlett http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba