[Samba] samba_dnsupdate

L.P.H. van Belle
2020-03-02T14:26:20Z

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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