[Samba] linux client DNS issues

[Patrick Goetz]

BTW, I can't find anything in the log files to help me with debugging 
this.  At what log level do DNS errors start showing up in the log files?

On 2/7/22 12:42, Patrick Goetz via samba wrote:
> 
> 
> On 2/7/22 09:50, Rowland Penny via samba wrote:
>> On Mon, 2022-02-07 at 09:24 -0600, Patrick Goetz via samba wrote:
>>> Save for the issue of PTR DNS records not being automatically
>>> created
>>> when joining a linux client to a Samba AD, I've had no problems
>>> joining
>>> Ubuntu + Louis van Belle linux clients to a Samba domain using the
>>> internal Samba DNS server.
>>>
>>> At the moment, I'm working on joining an Arch linux client to a
>>> Samba
>>> AD, and have run into an issue I didn't see on Ubuntu and want to
>>> find
>>> out what the difference is. Note: nearly identical smb.conf files
>>> (only
>>> the Shares differ) and same krb5.conf file.
>>>
>>> When I attempt to join the Arch linux machine to the domain using
>>> `net
>>> ads join`:
>>>
>>> [root at erap-gnome samba]# net ads join -U administrator
>>> Password for [EA\administrator]:
>>> Using short domain name -- EA
>>> Joined 'ERAP-GNOME' to dns domain 'ea.linuxcs.com'
>>> No DNS domain configured for erap-gnome. Unable to perform DNS
>>> Update.
>>> DNS update failed: NT_STATUS_INVALID_PARAMETER
>>>
>>>
>>> I looked up NT_STATUS_INVALID_PARAMETER in the wiki, and the
>>> suggestion
>>> was a missing or invalid host entry in /etc/hosts. I did indeed have
>>> a
>>> typo in the machine's entry in /etc/hosts, but fixing the typo did
>>> not
>>> resolve the issue. I get the same (or similar) error message when
>>> attempting to rejoin the machine to the domain. The machine is added
>>> to
>>> the domain, but no DNS A record is generated for it.
>>>
>>> I also tried using:
>>>
>>>     # samba-tool domain join ea.linuxcs.com MEMBER -U Administrator
>>>
>>> Using samba-tool there's no error message, but also no DNS entry:
>>
>> This possibly has the same problem as when you join a red-hat OS to
>> Samba AD, you get the same message. Try checking that /etc/hostname
>> contains the computers FQDN, this works on red-hat.
>>
> 
> I changed /etc/hostname from
> 
>    erap-gnome to
> 
>    erap-gnome.ea.linuxcs.com
> 
> 
> but got exactly the same error:
> 
> [root at erap-gnome ~]# net ads join -U administrator
> Password for [EA\administrator]:
> Using short domain name -- EA
> Joined 'ERAP-GNOME' to dns domain 'ea.linuxcs.com'
> No DNS domain configured for erap-gnome. Unable to perform DNS Update.
> DNS update failed: NT_STATUS_INVALID_PARAMETER
> 
> 
> Thanks for the suggestion, though.
> 
> 
>> Rowland
>>
>>
>>
>