[Samba] Best Upgrade Plan (Samba3 NT Style to Samba4 AD)

[Rowland Penny]

On Wed, 23 Jan 2019 12:31:23 -0500
Marco Shmerykowsky PE via samba <samba at lists.samba.org> wrote:

> On 1/23/2019 12:17 PM, Rowland Penny via samba wrote:
> > On Wed, 23 Jan 2019 12:00:59 -0500
> > Marco Shmerykowsky PE via samba <samba at lists.samba.org> wrote:
> > 
> >> I need to upgrade two file servers to samba 4.
> >>
> >> Server 1 -> Centos 6.1 (NT Style Domain Controller)
> >> Server 2 -> Centos 6.8 (member server)
> >>
> >> I have added a new server (ie Server 3) than is
> >> running Debian and Samba4 configured for AD.
> >>
> >> Computers and Users can authenticate to the new
> >> server and new domain.  Group Policy, share and
> >> drive maps work.  The new setup in a "test scenario"
> >> seems to be working properly.
> >>
> >> What is the best way to move the file servers
> >> over to the new version of samba?
> >>
> >> I'm thinking the following:
> >>
> >> 1) Remove samba3
> >> 2) Install samba4
> >> 3) Modify smb.conf for the required file shares
> >> 4) Join each server to the AD Domain.
> >> 5) Assign share/file permissions via windows.
> >> 6) Map new drives via Windows group policy.
> >>
> >> Seems simple.  Usually isn't.  Thanks.
> >>
> > 
> > 1) Copy all data to Server2
> > 2) Install Debian on Server1
> > 3) Use latest Samba from here: http://apt.van-belle.nl/
> > 4) Set up and join Computer to domain
> > 5) Once you are sure all accounts have the correct ID's, copy all
> > data to this Unix domain member aka fileserver
> > 6) Install Debian on Server2
> > 7) use latest Samba from here: http://apt.van-belle.nl/
> > 8) Set up and join to domain as a second DC
> > 
> > Rowland
> 
> What's the reason for changing distributions?
> We're talking about gigabytes of data (ie 113 Gb)
> That's a task I'd rather not tackle if not required.
> 
> 

The main reason (for myself anyway) is that you cannot create a Samba
AD DC on Centos using distro packages. There is also the problem that
Centos 6 is EOL, so you really need to upgrade/change this. The Debian
Samba packages I pointed you at are provide by a Samba team member.

Rowland