Migration question

[Ludvík Schmarcz]

Hi Olivier,


In my experience, the best new installation, add users and use imapsync. If the servers are virtualized, downtime is tens of seconds (only change IP addresses behind the firewall after last syncronisation).

Ludvik


S pozdravem

Ludvík Schmarcz
IT specialista

tel.: 777 726 780









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> 14. 3. 2017 v 16:37, Olivier Boucard <olivier at pafostech.com>:
> 
> 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
> 
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