Some time ago I was advised that the best way to upgrade server OS that - install new server and migrate users with their mailboxes.
Upgrade Zimbra 8.0.1 on Ubuntu 10.04.4 LTS to Zimbra 8.0.2 on Ubuntu 12 LTS
I need help.
How can I get another server with the same IP and hostname as the final result of migration. Should I create new server with other hostname and change hostname to the original after migration?