[Samba] Samba 4.2.14 Internal DNS not returning DNAME records?
Andrew Bartlett
abartlet at samba.org
Fri Jul 15 21:16:57 UTC 2016
On Fri, 2016-07-15 at 12:31 -0700, Kris Lou wrote:
> 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
> Google directly:
>
> [root at XXXX~]# nslookup -type=any www.pitneybowes.us
> > Server: xxx.xxx.xxx.xxx
> > Address: xxx.xxx.xxx.xxx#53
> > ** server can't find www.pitneybowes.us: SERVFAIL
> > [root at XXX~]# nslookup -type=any www.pitneybowes.us 8.8.8.8
> > Server: 8.8.8.8
> > Address: 8.8.8.8#53
> > Non-authoritative answer:
> > pitneybowes.us dname = pitneybowes.com.
> > www.pitneybowes.us canonical name = www.pitneybowes.com.
> > Authoritative answers can be found from:
>
>
> 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?
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.
Additionally, we don't have great support for large packets and TCP
forwarding, as I understand it.
Sorry,
Andrew Bartlett
--
Andrew Bartlett http://samba.org/~abartlet/
Authentication Developer, Samba Team http://samba.org
Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba
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