samba - Jun 2024 - Member server: Failed to join domain: failed to find DC for

LP
On Jun 8, 2024 at 17:56 +0100, samba at lists.samba.org <samba at
lists.samba.org>, wrote:
>
> I have never run those commands like that, I normally run 'net ads join
> -Uadministrator' or 'net ads leave -Uadministrator', I have
never
> specified the domain.
I did specify domain out of frustration I think. More test as per your inputs:
(net ads join fails)


root at member:~# net ads join domain -Uadministrator
Password for [MAD\administrator]:
Failed to join domain: failed to find DC for domain domain - A domain controller
for this domain was not found.

root at member:~# samba-tool domain join mad.mater.int MEMBER -Uadministrator
WARNING: Using passwords on command line is insecure. Installing the
setproctitle python module will hide these from shortly after program start.
Password for [MAD\administrator]:
DNS Update for member.mad.mater.int failed: ERROR_DNS_UPDATE_FAILED
DNS update failed: NT_STATUS_UNSUCCESSFUL
Joined domain mad.mater.int (S-1-5-21-2152908145-95474353-1514027631)


I leave domain again and then: (don?t specify MEMBER seems to work)

root at member:~# samba-tool domain join mad.mater.int -Uadministrator
WARNING: Using passwords on command line is insecure. Installing the
setproctitle python module will hide these from shortly after program start.
Password for [MAD\administrator]:
DNS Update for member.mad.mater.int failed: ERROR_DNS_UPDATE_FAILED
DNS update failed: NT_STATUS_UNSUCCESSFUL
Joined domain mad.mater.int (S-1-5-21-2152908145-95474353-1514027631)

On Sat, 8 Jun 2024 18:07:55 +0100
Luis Peromarta <lperoma at icloud.com> wrote:
> 
> LP
> On Jun 8, 2024 at 17:56 +0100, samba at lists.samba.org
> <samba at lists.samba.org>, wrote:
> >
> > I have never run those commands like that, I normally run 'net ads
> > join -Uadministrator' or 'net ads leave -Uadministrator',
I have
> > never specified the domain.
> 
> I did specify domain out of frustration I think. More test as per
> your inputs: (net ads join fails)
> 
> 
> root at member:~# net ads join domain -Uadministrator
> Password for [MAD\administrator]:
> Failed to join domain: failed to find DC for domain domain - A domain
> controller for this domain was not found.
> 
> root at member:~# samba-tool domain join mad.mater.int MEMBER
> -Uadministrator WARNING: Using passwords on command line is insecure.
> Installing the setproctitle python module will hide these from
> shortly after program start. Password for [MAD\administrator]: DNS
> Update for member.mad.mater.int failed: ERROR_DNS_UPDATE_FAILED DNS
> update failed: NT_STATUS_UNSUCCESSFUL Joined domain mad.mater.int
> (S-1-5-21-2152908145-95474353-1514027631)
> 
> 
> I leave domain again and then: (don?t specify MEMBER seems to work)
> 
> root at member:~# samba-tool domain join mad.mater.int -Uadministrator
> WARNING: Using passwords on command line is insecure. Installing the
> setproctitle python module will hide these from shortly after program
> start. Password for [MAD\administrator]: DNS Update for
> member.mad.mater.int failed: ERROR_DNS_UPDATE_FAILED DNS update
> failed: NT_STATUS_UNSUCCESSFUL Joined domain mad.mater.int
> (S-1-5-21-2152908145-95474353-1514027631)
> 
> 
> 
This all sounds dns related, can you post the contents of these files:

/etc/hostname
/etc/hosts
/etc/resolv.conf
/etc/krb5.conf

What OS is this ?

Rowland