Dsync setup... help needed

[Sinergizmas Sin ergizmas]

Hello,

I tried to implement Dsync (doveadm version 2.2.10) following
https://www.evilcoder.org/2014/08/22/automatic-replication-with-dovecot/
but had no luck. SSH commands working quite well, but I need to respond
more quickly. So TCP looks promising.

I have Centos 6, Dovecot 2.2.10. I did everything that is written there,
but after I restart dovecot doesn't sync.  Then i ran netstat command but
no service listen to port 12345 also. Iptables service are of in testing
scenario...