[Samba] Samba internal dns problem / No domain service

[Rowland Penny]

On 06/11/14 16:27, sr wrote:
> Does this problem could come from a port occupied by another program 
> in the / etc / services file? And which one?

If something else is listening on port 53, then yes, as you are using 
the internal DNS server, you shouldn't have any other DNS program 
running on the same server, i.e. dnsmasq, bind etc

Try running 'netstat -tulpn | grep 53 | grep LISTEN' on the samba4 AD DC

I use Bind9 and get:

tcp        0      0 192.168.0.2:53          0.0.0.0:* LISTEN      
2346/named
tcp        0      0 127.0.0.1:53            0.0.0.0:* LISTEN      
2346/named
tcp        0      0 127.0.0.1:953           0.0.0.0:* LISTEN      
2346/named

Rowland

>
> Samuel
>
> Le 06/11/2014 13:41, sr a écrit :
>>
>> Le 06/11/2014 12:25, Rowland Penny a écrit :
>>> On 06/11/14 10:59, sr wrote:
>>>>
>>>> Le 06/11/2014 11:23, Rowland Penny a écrit :
>>>>> On 06/11/14 10:16, sr wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I'm trying to move from a windows 2008R2 domain controler to 
>>>>>> samba4 ( centos 6.5 x64 + samba v 4.1.13 )
>>>>>> For now, both of server are working as AD controlers.
>>>>>
>>>>> How did you join the Samba4 DC to the windows domain ?
>>>> I followed the wiki guide "Join a domain as a DC" with no problem 
>>>> unless for the msdcs CNAME entry of the new dc, which return error 
>>>> ( I did it with the win2000 graphical interface, like others guys 
>>>> in the same situation )
>>>
>>> SO, 'host -t CNAME YOUR_objectGUID._msdcs.samba4.domain.com.' does 
>>> not return a CNAME, have you run:
>>>
>>> samba-tool dns add IP-of-your-DNS _msdcs.samba4.domain.com 
>>> YOUR_objectGUID CNAME DC2.samba4.domain.com -Uadministrator
>>>
>>> Also, I see that you mention 'the win2000 graphical interface' , I 
>>> wonder if this is the problem, the lowest function level of Samba4 
>>> AD is 2003 ?
>>>
>>> Rowland
>> No, the command 'host -t CNAME 
>> YOUR_objectGUID._msdcs.samba4.domain.com.' return 'host -t CNAME 
>> YOUR_objectGUID._msdcs.samba4.domain.com is an alias for 
>> samba4.domain.com'.
>> whops! I would says "win2008 graphical interface. ;)
>> I tryed a first install with domain and forest with a 2008 functional 
>> level with the same problem... ( now it's a 2003 domain and forest 
>> functional level )
>> Thanks.
>>
>> Samuel
>>>
>>>>>
>>>>>>
>>>>>> But I can't manage DNS from a windows client with the graphical 
>>>>>> tool... ( it says "active directory not available, ..." )
>>>>>>
>>>>>> On samba server if I try the following command
>>>>>> "samba-tool dns zonelist samba4.domain.com"
>>>>>>
>>>>> Is 'samba4.domain.com' your dns domain on both DC's ? also I take 
>>>>> that you are adding '-UAdministrator' to the above command.
>>>> Yes. Like the W2008 server
>>>>>
>>>>> Rowland
>>>>>
>>>>>> the following message appears
>>>>>> "9717, 'WERR_DNS_ERROR_DS_UNAVAILABLE"
>>>>>>
>>>>>> and if I shutdown the win2008 server the message is 
>>>>>> "NT_STATUS_IO_TIMEOUT"
>>>>>>
>>>>>> any help will be fully appreciate! :)
>>>>>> Thanks! :)
>>>>>>
>>>>>> Samuel
>>>>>
>>>> thanks
>>>
>>
>