[Samba] Migrate and Update (Samba 4.1 ADDC to Samba Latest Version on different Server).

[Juan Ignacio]

I have read both emails carefully and I have some doubts.

If I remember correctly, changing the ip of an ad-dc samba caused
problems for clients to connect.
Can the new server that will replace the old one have a different IP
from the one in production?

I need to join the new one to the old one that is in production to be
able to do an upgrade?,  did I understand correctly? How we transform
the new one on a samba-ad-dc if it joins as a DC.

If this is correct, which ip and hostname is recommended to be placed
on this new server, any different from the old server?




*"About the resolv.conf file...
Ensure that the /etc/resolv.conf has only these lines
search your.dns.domain
nameserver YOUR.EXISTING.DC.IPADDRESS"** (The new one or the old one.)?*


*
etc/hosts has 127.0.0.1 pointing to localhost and there is a line like
this (replace with your information):
the.computers.ipaddress the_computers_fqdn
the_computers_short_hostname* (*old server or different information*)

*etc/hostname should only contain the computers short hostname*.
* ( i only have the computer short name of the server itself i think
is correct.)*

When you say computers, that confuses me a bit because I think that
more than one is plural

Excuse so many doubts, but between the language and having done it so
long ago I'm a little rusty.

Thx in advance you awesome..


El vie, 18 nov 2022 a las 13:43, Rowland Penny via samba (<
samba at lists.samba.org>) escribió:

>
>
> On 18/11/2022 16:21, Juan Ignacio via samba wrote:
> > Thx, Andrew and Rowland seem awesome the new version of samba.
> > Already installed samba 4.16 from the backports on Debian 11.
> >
> > I didn't touch anything, only Installed It.Version 4.16.6-Debian
> >
> > Now is time to migrate from 4.1 to 4.16
> >
> > The production machine is a Debian 7 with Samba 4.1 working OK.
> >
> > The new server is a Debian 11 with Samba 4.16.6-Debian, without any setup
> > or configuration.
> > root at titan:~# samba -V
> > Version 4.16.6-Debian
> > root at titan:~# service samba-ad-dc status
> > ● samba-ad-dc.service>       Loaded: masked (Reason: Unit
> samba-ad-dc.service is masked.)
> >       Active: inactive (dead)
> >
> > Need some tips to start the migration.
> >
> > For now both servers are in the same network but i can separate them if
> > necessary.
>
> You are NOT migrating your Samba AD, you are upgrading it.
>
> First ensure you have a good backup of your existing DC, just in case.
>
> On your new Debian machine, remove any existing smb.conf file.
>
> Ensure that the /etc/resolv.conf has only these lines:
>
> search your.dns.domain
> nameserver YOUR.EXISTING.DC.IPADDRESS
>
> /etc/hosts has 127.0.0.1 pointing to localhost and there is a line like
> this (replace with your information):
>
> the.computers.ipaddress the_computers_fqdn the_computers_short_hostname
>
> /etc/hostname should only contain the computers short hostname.
>
> Once they are set, run as root:
>
> samba-tool domain join your.dns.domain DC -U Administrator
>
> Again, replace 'your.dns.domain' with your dns domain.
>
> You should be prompted for the Administrator password and then the
> computer should be joined to your AD domain as a new DC.
>
> Rowland
>
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