rsync /old/server new/server ?

[Aki Tuomi]

On 8.3.2019 14.07, Voytek Eymont wrote:
> On Fri, March 8, 2019 10:45 pm, Aki Tuomi via dovecot wrote:
>> On 8.3.2019 13.44, Voytek Eymont via dovecot wrote:
>>
>>> I have Centos 7 with dovecot/postfix/mysql Maildir
>>>
>>>
>>> I want to bring in a new server, new server will have same hostname as
>>> current, but, different IP
>>>
>>> I was intending to
>>> rsync -avzhe ssh  vmail at oldserver:/var/vmail/vmail1  /var/vmail/vmail1
>>>
>>> and, then, re run as necessary when/if mail still arrives on old server
>>>
>>>
>>> is that "a good plan" ...?
>>>
>>> TIA, V
>>>
>>>
>> Yeah, it's ok as long as you haven't switched to new server.
> Aki, thanks
>
> I'm not certain I understand your comment properly
>
> I currently have server 'geko'
>
> intention was to change A record to assign geko to new IP/server, assign
> new hostname to oldserver A record
>
> I guess I;ll still get some emails delivered to oldserver with new
> hostname/old ip for 24 hours or so after aA record change ?
>
> so, I was going to re run rsync 2 or 3 times over the first 24 hours or so ?
>
> are you saying NOT to rsync once A record changed ?
>
> sorry for being slow
>
>
You could configure old server's MTA to deliver mail to new server's MTA
instead? After there has been activity on the new server, running rsync
from old server can cause problems.

Aki