[Samba] Join AD fails DNS update

[L.P.H. van Belle]

How did you look for the record?

I have seen this also yes. 
When you look with the windows tools, try to refresh the screen first. 
do you use the internal dns of bind for dns? 
this happend for me with the bind dns. 
i did fix it, but that was months ago, im try to remember, but ...  :-(( 

this also happens when you have a setup like this. 

sambadomain.domain.tld

AND 
dns of samba also manages : domain.tld. 

now when you add a A record for sambadomain.domain.tld in domain.tld
this also cases this problem. 

when this happend, you can check it als following. 

1) look in the dns with the windows tools, you wil see all you dns records. 
2) setup a bind slave for both zones, and check whats in these zones, 
   you will see your missing lots of your dns records. 

quick fix, reprovision you samba4 domain. 
the other, ... still cant remember.. (sorry)


Greetz, 

Louis



>-----Oorspronkelijk bericht-----
>Van: debian at lhanke.de [mailto:samba-bounces at lists.samba.org] 
>Namens Lars Hanke
>Verzonden: woensdag 25 juni 2014 9:53
>Aan: samba at lists.samba.org
>Onderwerp: Re: [Samba] Join AD fails DNS update
>
>Hi Louis,
>
>in the current case there is no A record in the DNS, but the update 
>fails claiming it was already there. This smells like a real bug.
>
>Regards,
>  - lars.
>
>Am 25.06.2014 09:41, schrieb L.P.H. van Belle:
>>
>> and this is not needed... if the A record in the dns is correct.
>>
>>>
>>> 1. net ads leave -UAdministrator
>>> 2. remove the A record on the DC
>>> 3. net ads join -UAdministrator
>>
>> If you have a correct A record in the dns, you still can 
>join the domain.
>>
>> I just gives a error of unable to create the dns record at join.
>> imo a bug of samba and can be ignored. the hostname wil be 
>created in the AD anyway.
>>
>> and i explain why.
>> 1) pc gets dhcp ip, and this is added in the dns. ( in case 
>of dynamic dns )
>> 2) pc joins the ad.. and gets added in the ad.
>>     and during this join a A record is also tried to create 
>in the dns.
>>     but is is already there...  so it gives back an error...
>>
>> Samba should check if the A record already exist, if so, 
>dont create it.
>>
>> I've tested this, multiple times, and if i have to rejoin a domain,
>> just clear the /var/lib/samba
>> and remove the hostname from the AD, and you can rejoin.
>>
>>
>> Best regards,
>>
>> Louis
>>
>>
>>> -----Oorspronkelijk bericht-----
>>> Van: steve at steve-ss.com [mailto:samba-bounces at lists.samba.org]
>>> Namens steve
>>> Verzonden: dinsdag 24 juni 2014 19:00
>>> Aan: samba at lists.samba.org
>>> Onderwerp: Re: [Samba] Join AD fails DNS update
>>>
>>> On Tue, 2014-06-24 at 18:06 +0200, Lars Hanke wrote:
>>>> Hi,
>>>>
>>>>   > setup the resolv.conf
>>>> My resolv.conf looks okay and I can resolve other AD 
>specific stuff.
>>>>
>>>>> check you hosts file
>>>>> 	127.0.0.1 localhost localhost.localdomain.
>>>>> 	IP_OF_THIS_SERVER  hostname.yourinternal.domain.tld
>>>
>>> The ONLY way we can get it to register upon domain join is:
>>>
>>> /etc/hosts
>>> 127.0.0.1 fqdn hostname localhost
>>>
>>> Lose the IP_OF_THIS_SERVER for the join.
>>>
>>> And /etc/hostname
>>> fqdn
>>>
>>> 1. net ads leave -UAdministrator
>>> 2. remove the A record on the DC
>>> 3. net ads join -UAdministrator
>>>
>>> Nothing else works on Ubuntu. YMMV on deb.
>>> Steve
>>>
>>>
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>>>
>>
>
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