Migration question

Ludvík Schmarcz schmarcz at blacksun.cz
Tue Mar 14 18:21:22 CET 2017


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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