samba - Feb 2022 - Questions about migrating SAMBA4 AD DC

Hi,
I'd want to migrate a SAMBA4 AD DC on premises to an instance of Amazon
Lightsail (listening only over private IP addresses). I have only one DC.
The domain has less than 100 users.
I use the backup script of Matthieu Pato. Could I use that backup to
restore the Domain and DC to the LS instance?
On the samba wiki it says "Always Restore on a system with the same IP and
Hostname. Otherwise you will run into Kerberos and DNS issues." (
https://wiki.samba.org/index.php/Using_the_samba_backup_script#About_the_samba_backup_script
)

Please could you recommend a way to migrate in this case?
Thanks in advance for your help.

-- 
--
Sergio Belkin
LPIC-2 Certified - http://www.lpi.org

On Thu, 2022-02-17 at 12:27 -0300, Sergio Belkin via samba
wrote:
> Hi,
> I'd want to migrate a SAMBA4 AD DC on premises to an instance of
> Amazon
> Lightsail (listening only over private IP addresses). I have only one
> DC.
> The domain has less than 100 users.
> I use the backup script of Matthieu Pato. Could I use that backup to
> restore the Domain and DC to the LS instance?
The old bash script was only used on Samba versions before 4.9.0, which
means versions that are no longer supported by Samba. You really should
have upgraded Samba before now.
> On the samba wiki it says "Always Restore on a system with the same
> IP and
> Hostname. Otherwise you will run into Kerberos and DNS issues." (
>
https://wiki.samba.org/index.php/Using_the_samba_backup_script#About_the_samba_backup_script
> )
> 
> Please could you recommend a way to migrate in this case?
No idea really, it may be possible to join the amazon product to your
existing domain (you may have to upgrade Samba first), then demote your
existing DC.
Perhaps amazon could help here, or perhaps someone has done what you
are proposing.

Rowland