I want to build and test (at least a little) a new server to replace an
existing, production one.
The old one is on machine xxx.xxx.xxx.A running FreeBSD10/Postfix 3.0.2
and the new one on xxx.xxx.xxx.B running FreeBSD11/Postfix 3.1.3.
I would much appreciate advice on how best to define the variables
related to host name, domain name, etc. to that
1) I can send mail out from xxx.xxx.xxx.B (mostly to xxx.xxx.xxx.A but
hopefully elsewhere if possible) AND
2) receive mail at xxx.xxx.xxx.B
3) not change anything on xxx.xxx.xxx.A
Both of these machines are virtual machines housed at some data center
somewhere.
When I am reasonably satisfied xxx.xxx.xxx.B is working, I will copy all
the (IMAP) emails on xxx.xxx.xxx.A to xxx.xxx.xxx.B, give it the host
name etc. of xxx.xxx.xxx.A, and change my DNS to point to xxx.xxx.xxx.B.
TIA
Bernard Higonnet
