On 12/14/11 1:00 PM, Wietse Venema wrote:
Rolf E. Sonneveld:
Hi, all,
sorry if this has been asked before, I browsed the archives and could
not find this mentioned. Running Postfix 2.8.6. I'm planning to use the
Dovecot SASL implementation. Is there a way to define multiple Dovecot
servers to achieve redundancy and to prevent problems in case one
Dovecot server / process is down?
At this time, multiple servers would require inet:host:port where
"host" resolves to multiple IP addresses.
Do you mean by this that, in a round robin setup like:
auth.example.com IN A auth1.example.com
auth.example.com IN A auth2.example.com
and:
/etc/postfix/main.cf:
smtpd_sasl_path = inet:auth.example.com:port
Postfix would try automatically auth2.example.com when it discovers
auth1.example is down (in case it gets
auth1.example.com,auth2.example.com (in this order) from the DNS resolver)?
/etc/postfix/main.cf:
smtpd_sasl_path = inet:host:port
I recall that Linux won't allow you to do that with /etc/hosts,
so you'll have to use DNS or *BSD.
Thanks,
/rolf
