[Samba] samba_dnsupdate

[L.P.H. van Belle]

Guys, what i noticed. 

Look at this. 

Refused- 1/3/0 (Class 254)   ( /24 ) 
Paully used /16 

update 1/3/1 (Class 254) CNAME V-RDS02.mydomain.com 
CNAME ?  

And, if he uses in his example 
samba-tool dns add dc3 mydomain.com V-RDS02 A 130.130.0.252 
A record was used. 

Is resolv.conf checked and it is sure in pointing to the correct DNS of the AD first? 

       addresses:
       - 130.130.0.218/16
       gateway4: 130.130.0.1
       nameservers:
         addresses:
         - 130.130.0.218
         - 130.130.0.219


What are these AD-DC's ? 
         - 130.130.0.218
         - 130.130.0.219


Greetz, 

Louis



> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens 
> Rowland penny via samba
> Verzonden: maandag 2 maart 2020 15:17
> Aan: sambalist
> Onderwerp: Re: [Samba] samba_dnsupdate
> 
> On 02/03/2020 13:36, Paul Littlefield wrote:
> > On 02/03/2020 13:16, Rowland Penny via samba wrote:
> >>
> >> Samba runs samba_dnsupgrade on a regular basis, using 
> dns_update_list 
> >> as a template. Amongst the list of dns entries is this:
> >>
> >> AAAA ${HOSTNAME}                                           $IP
> >>
> >
> > Hi Rowland,
> >
> > Can I change any of these which will not break my AD DC?
> You could try commenting out the line in dns_update_list.
> > dns update command = /usr/sbin/samba_dnsupdate
> Write another script that does nothing and use that instead (just for 
> testing) ?
> >
> > OK, so is it safe to (maybe at a future date) turn off IPv6 
> on Ubuntu 
> > and change to ifupdown if I want to?
> Yes, this is what I did when testing Ubuntu 18.04, but 
> perhaps Louis has 
> further comments ?
> >
> > 13:25:35.264891 IP 130.130.0.252.63006 > 130.130.0.218.53: 29782 
> > update [1a] [3n] SOA? mydomain.com. (108)
> > 13:25:35.265196 IP 130.130.0.218.53 > 130.130.0.252.63006: 29782 
> > update Refused- 1/3/0 (Class 254) CNAME V-RDS02.mydomain.com. (108)
> > 13:25:35.274443 IP 130.130.0.252.55001 > 130.130.0.218.53: 64781 
> > update [1a] [3n] [1au] SOA? mydomain.com. (239)
> > 13:25:35.354349 IP 130.130.0.218.53 > 130.130.0.252.55001: 64781 
> > update 1/3/1 (Class 254) CNAME V-RDS02.mydomain.com. (224)
> >
> > ...what IS that Windows server trying to do?!
> It looks like it is trying to update its own dns records and 
> if you are 
> using dhcp to update the records in AD they shouldn't be.
> 
> Rowland
> 
> 
> 
> 
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