[Samba] Internal DNS migrate to Bind9_DLZ

L.P.H. van Belle belle at bazuin.nl
Tue Jul 31 09:33:18 UTC 2018


Did you make sure that your root and localhost zones are loaded last in the bind config. 

The order matters, at least if you also use bind_DLZ. 

I suggest, you try it. 
Im Just thinking about this,  if your . (root) zone is loaded, and its trying to lookup you company.corp domain. 
It hits resolv.conf then you bind, and bind_dlz is not loaded yet, so lookup on the internet.
Its a possible option this happens, i dont know the bind9_dlz code. 

And this, >>  domain.corp is just an alias, not the actual domain name. 
Setup a with a real zone. 

But pretty im sure your problem is caused by one of these 2. 

I suguest start with making sure your localhost and root zones are loaded last on named.conf.

In my Debian server the order is as followed.
include "/etc/bind/named.conf.options";		< here (withing the options line:  at the bottum of the global options: tkey-gssapi-keytab "/var/lib/samba/private/dns.keytab";
include "/etc/bind/named.conf.local";		< here only one line:  include "/var/lib/samba/private/named.conf";  
include "/etc/bind/named.conf.default-zones";	< here are my root and localhost zones ( default bind, not in DLZ )



> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens 
> Rowland Penny via samba
> Verzonden: dinsdag 31 juli 2018 10:23
> Aan: samba at lists.samba.org
> Onderwerp: Re: [Samba] Internal DNS migrate to Bind9_DLZ
> On Mon, 30 Jul 2018 23:36:46 +0200
> Eben Victor <eben.victor at gmail.com> wrote:
> > It is part of the Sernet packages and is currently on 1.3.4
> > /usr/lib64/samba/libldb.so.1.3.4
> > 
> > We started using sernet-samba-ad from v4 using the internal dns and
> > updated as versions were released. We have now recently updated from
> > 4.8.2 to 4.8.3 and still using internal dns.
> > Our DNS is working as it should, it's only been since recently that
> > we have to migrate to bind9.
> > 
> So, you are using Samba without problem, it is just that when you try
> to use Bind9 instead of the internal dns server, your problems start.
> Let's just recap
> You have run 'samba_upgradedns'
> You have altered smb.conf
> You have configured 'named.conf' correctly
> The Samba 'named.conf' file is readable by 'named' (this should be
> 'rw-r--r--' i.e. world readable)
> But, even though everything looks okay, Bind9 will not start.
> This is strange, there doesn't seem to be any reason for it.
> Is anybody using the combination of Centos 7, Samba 4.8.3 and Bind9
> without problems ?
> Rowland
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