samba - Apr 2019 - How to best configure DNS for upgrading samba AD DC?

https://wiki.samba.org/index.php/Updating_Samba says we should shut down
all the samba processes before we upgrade. However, if I do that, then I
don't have DNS b/c samba _is_ my DNS on the AD DC. I configured it per
https://wiki.samba.org/index.php/Setting_up_Samba_as_an_Active_Directory_Domain_Controller

Am I missing something? Do I have something misconfigured? Is there a way
to configure a fall-back DNS service so I can still run apt-get when samba
is not running? Or do I need to manually reconfigure DNS after shutting
samba down?

OS = Ubuntu 18.04
Samba = 4.10.2 (the latest & greatest - big thanks to Louis) BTW, the
4.7-4.9 upgrade bug is listed as fixed in 4.10 and my upgrade from
4.7.6-ubuntu to Louis' 4.10.2 had no issues.

Obviously I managed to upgrade without shutting down samba (I did take a
snapshot), despite the recommendations and as of a day later, I'm unaware
of any problems.

But, for the future, I'd prefer to do this the "right" way.

Thanks,
Jonathan Kreider

On Wed, 10 Apr 2019 17:46:34 -0400
Jonathan Kreider via samba <samba at lists.samba.org> wrote:
> https://wiki.samba.org/index.php/Updating_Samba says we should shut
> down all the samba processes before we upgrade. However, if I do
> that, then I don't have DNS b/c samba _is_ my DNS on the AD DC. I
> configured it per
>
https://wiki.samba.org/index.php/Setting_up_Samba_as_an_Active_Directory_Domain_Controller
That page needs updating, it looks like Samba is stopped to make a
backup, something that can now safely be done with Samba running.
> 
> Am I missing something? Do I have something misconfigured? Is there a
> way to configure a fall-back DNS service so I can still run apt-get
> when samba is not running? Or do I need to manually reconfigure DNS
> after shutting samba down?
> 
> OS = Ubuntu 18.04
> Samba = 4.10.2 (the latest & greatest - big thanks to Louis) BTW, the
> 4.7-4.9 upgrade bug is listed as fixed in 4.10 and my upgrade from
> 4.7.6-ubuntu to Louis' 4.10.2 had no issues.
> 
> Obviously I managed to upgrade without shutting down samba (I did
> take a snapshot), despite the recommendations and as of a day later,
> I'm unaware of any problems.
I do not think you have anything to worry about, that is the way I
upgrade and I have never had a problem.

Just take regular backups and carry on ;-)

Rowland

Rowland,

Thanks for the clarification. I get the sense that maintaining the docs is
a never-ending and overwhelming task given the pace of change in samba.

Thanks again!
Jonathan Kreider


On Thu, Apr 11, 2019 at 3:33 AM Rowland Penny via samba <
samba at lists.samba.org> wrote:
> On Wed, 10 Apr 2019 17:46:34 -0400
> Jonathan Kreider via samba <samba at lists.samba.org> wrote:
>
> > https://wiki.samba.org/index.php/Updating_Samba says we should shut
> > down all the samba processes before we upgrade. However, if I do
> > that, then I don't have DNS b/c samba _is_ my DNS on the AD DC. I
> > configured it per
> >
>
https://wiki.samba.org/index.php/Setting_up_Samba_as_an_Active_Directory_Domain_Controller
>
> That page needs updating, it looks like Samba is stopped to make a
> backup, something that can now safely be done with Samba running.
>
> >
> > Am I missing something? Do I have something misconfigured? Is there a
> > way to configure a fall-back DNS service so I can still run apt-get
> > when samba is not running? Or do I need to manually reconfigure DNS
> > after shutting samba down?
> >
> > OS = Ubuntu 18.04
> > Samba = 4.10.2 (the latest & greatest - big thanks to Louis) BTW,
the
> > 4.7-4.9 upgrade bug is listed as fixed in 4.10 and my upgrade from
> > 4.7.6-ubuntu to Louis' 4.10.2 had no issues.
> >
> > Obviously I managed to upgrade without shutting down samba (I did
> > take a snapshot), despite the recommendations and as of a day later,
> > I'm unaware of any problems.
>
> I do not think you have anything to worry about, that is the way I
> upgrade and I have never had a problem.
>
> Just take regular backups and carry on ;-)
>
> Rowland
>
>
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