samba - Apr 2023 - Unable to "rejoin" existing DC after upgrade (infamous WERR_FILE_NOT_FOUND)

Not that I have any problem (that I am aware) but the output of the host command
only shows (showed) 2 out of??3 DCs in my network.

I have created the missing one. All other entries in the DNS tree shows all 3
DCs for each service. The only missing was this one.

host -t SRV _ldap._tcp.pdc._msdcs.mad.mater.int
_ldap._tcp.pdc._msdcs.mad.mater.int has SRV record 0 100 389
bwing.mad.mater.int.
_ldap._tcp.pdc._msdcs.mad.mater.int has SRV record 0 100 389
awing.mad.mater.int.
_ldap._tcp.pdc._msdcs.mad.mater.int has SRV record 0 100 389
cwing.mad.mater.int.


What could have happened ? Just curious.

LP
On 14 Apr 2023 at 13:51 +0200, samba at lists.samba.org,
wrote:
>
> Can you please run this command on a DC and post the output:
>
> host -t SRV _ldap._tcp.pdc._msdcs.wdc.dom.it

On 14/04/2023 13:40, Luis Peromarta via samba wrote:
> Not that I have any problem (that I am aware) but the output of the host
command only shows (showed) 2 out of??3 DCs in my network.
> 
> I have created the missing one. All other entries in the DNS tree shows all
3 DCs for each service. The only missing was this one.
> 
> host -t SRV _ldap._tcp.pdc._msdcs.mad.mater.int
> _ldap._tcp.pdc._msdcs.mad.mater.int has SRV record 0 100 389
bwing.mad.mater.int.
> _ldap._tcp.pdc._msdcs.mad.mater.int has SRV record 0 100 389
awing.mad.mater.int.
> _ldap._tcp.pdc._msdcs.mad.mater.int has SRV record 0 100 389
cwing.mad.mater.int.
> 
> 
> What could have happened ? Just curious.
There is a bug for this, whilst there is code to create the 
PDC_Emulators SRV record after the FSMO role is moved, there isn't any 
code to remove it, so you can end up up like yourself, with a record for 
every DC the PDC_emulator role has been on.

Just remove the wrong records with samba-tool.

Rowland