Migration question

[Olivier Boucard]

Hi,

I have an old Kolab 3.3 running on an old CentOS 6. I would like to
migrate to a new server running CentOS 7 with the latest Kolab.

What would be the steps (not in details just the overall process) to do
such a migration with no service interruption (keeping the old server
running)?
Especially concerning the DNS configuration.

Thanks

Olivier Boucard

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kolab.org/pipermail/users/attachments/20170314/f6a94d7e/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: OpenPGP digital signature
URL: <http://lists.kolab.org/pipermail/users/attachments/20170314/f6a94d7e/attachment.sig>