[Samba] Win Clients and DNS

[Viktor Trojanovic]

On 16.11.2015 14:22, L.P.H. van Belle wrote:
> More explained..
>
> Only my laptops get a DHCP IP.
> All my other computers have static ip.
>
> After the AD join, it does not matter if
> 1) a desktop pc, when a static IP changes for a computer.
> 2) a laptop gets a different IP.
> The PC always updates its A and PTR
>
> So, in both cases my A and PTR records are changed in the DNS.
>
> Maybe an firewall setting on you pc is blocking the update to the dns server or on the server you now allowing the dns updates.
>
> Can you have a look into that?
>
> Greetz,
>
> Louis
>
OK, so my situation is as follow:

- NDS A and PTR are manually set on the Samba DNS for all domain members
- All clients have fixed IP addresses and are in the same subnet as the 
Samba server
- I disabled the Windows Firewall just to make sure there is no block on 
the PC either

==> No change, I still get the same error message in the windows event 
viewer.

If I look at the error message, one line which seems wrong is

----> Sent update to server: <?>

It does give the correct IP address in the following line but is this 
how it should look?

Viktor



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>> -----Oorspronkelijk bericht-----
>> Van: Viktor Trojanovic [mailto:viktor at troja.ch]
>> Verzonden: maandag 16 november 2015 12:02
>> Aan: L.P.H. van Belle; samba at lists.samba.org
>> Onderwerp: Re: [Samba] Win Clients and DNS
>>
>> Hi Louis,
>>
>> I don't use DHCP so most of what you wrote doesn't apply in my case.
>>
>> As for the reverse zone: I followed the wiki in this respect and do have
>> a reverse lookup zone for the network, pointing to the DC.
>>
>> RLZ: 0.168.192.in-addr.arpa
>> PTR 192.168.0.1
>> NS dc samdom.com
>> SOA [2], dc.samdom.com, hostmaster.samdom.com
>>
>> Let me know if you see any issues in this configuration, thanks.
>>
>> Viktor
>>
>> On 16.11.2015 11:41, L.P.H. van Belle wrote:
>>> Hai,
>>>
>>> I suggest you dont remove the "Register DNS" checkbox from the network"
>> option.
>>> If you setup if correct, when you join a computer to the domain,
>>> It wil automatily registere the computer en the AD DNS.
>>> And todo so you need the "Register DNS" checkbox from the network"
>>>
>>> For example, i use for now an dhcp server
>>> ! the DHCP server i use it NOT in any of the MS domains and/or Samba AD
>> !
>>> So its just a dhcp server, not linked to any domain.
>>> And i have 3 MS domains here.
>>>
>>> If i join the domain with an pc with dhcp ip, it is registered as it
>> should.
>>> And same with pc's that have a dedicated IP.
>>>
>>> So,
>>> or the dhcp server is giving the wrong options to the pc.
>>> or your missing the reverse DNS zone.
>>>
>>> This should work out of the box, without any registry modification etc..
>>>
>>> Greetz,
>>>
>>> Louis
>>>
>>>
>>>
>>>> -----Oorspronkelijk bericht-----
>>>> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Viktor
>> Trojanovic
>>>> Verzonden: maandag 16 november 2015 10:47
>>>> Aan: Rowland Penny; samba at lists.samba.org
>>>> Onderwerp: Re: [Samba] Win Clients and DNS
>>>>
>>>>
>>>>
>>>> On 16.11.2015 09:57, Rowland Penny wrote:
>>>>> On 16/11/15 00:31, Viktor Trojanovic wrote:
>>>>>> I have an AD with 1 Samba DC and 5 Windows 10 clients. The DC and the
>>>>>> clients all have a fixed IPv4 address.
>>>>>>
>>>>>> In the windows event viewer, I constantly see the following warning:
>>>>>>
>>>>>> Event 8019, DNS Client Events
>>>>>> ------------------------------------------
>>>>>> The system failed to register host (A or AAA) resource records (RRs)
>>>>>> for network adapter with settings:
>>>>>>
>>>>>> Adapter Name: {someGUID}
>>>>>> Host Name: Client-PC
>>>>>> Primary Domain Suffix: SAMDOM.COM
>>>>>> DNS Server list:
>>>>>>       192.168.0.1
>>>>>> Sent update to server: <?>
>>>>>> IP Addresses:
>>>>>>      192.168.0.15
>>>>>> ------------------------------------------
>>>>>>
>>>>>> Is it necessary to manually make some entries in DNS for the client
>>>>>> machines? I didn't see anything about that in the Wiki.
>>>>>>
>>>>>> I'm trying to figure out if this is connected to another problem I'm
>>>>>> facing. A machine based GPO is not executed because "the file
>>>>>> \\SAMDOM.COM\SysVol\[...]\gpt.ini from a domain controller could not
>>>>>> be read", and as one of the possible reasons for the error, name
>>>>>> resolution is mentioned. I can access the file just fine once I'm
>>>>>> logged in so I really don't know what the issue is here.
>>>>>>
>>>>>> Thanks,
>>>>>> Viktor
>>>>>>
>>>>> Is there anything in syslog on the DC, it may be that whilst your
>>>>> clients are trying to update their dns records in AD, they are being
>>>>> denied.
>>>>> If the clients were Unix based, you would have to add their records to
>>>>> AD manually, It is probably the same for fixed window clients.
>>>>> There is something on the wiki about adding dns records, but it is a
>>>>> bit unclear as to why you would need to do this:
>>>>>
>>>>> https://wiki.samba.org/index.php/DNS_administration#Adding_new_records
>>>>>
>>>>> Rowland
>>>> Yes, I read that, and I'm not clear either on why the clients need
>>>> registration and what the disadvantages would be if they aren't. But
>>>> Ole's tip to remove the "Register DNS" checkbox from the network
>>>> interface on Win Clients does seem like valuable information for the
>> wiki.
>>>> Viktor
>>>>
>>>>
>>>> --
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>>>> instructions:  https://lists.samba.org/mailman/options/samba
>>>
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