systemd also listening on imaps port

[Aki Tuomi]

On 20.08.2018 14:32, Kai Schaetzl wrote:
> I noticed that most of the time with dovecot 2.3 I get this output, 
> showing systemd listening on the port as well:
>
> lsof -i TCP:993
> systemd     1 root   38u  IPv4 3388360574      0t0  TCP *:imaps (LISTEN)
> systemd     1 root   41u  IPv6 3388360575      0t0  TCP *:imaps (LISTEN)
> dovecot 11607 root    5u  IPv4 3388360574      0t0  TCP *:imaps (LISTEN)
> dovecot 11607 root    6r  IPv6 3388360575      0t0  TCP *:imaps (LISTEN)
>
> Sometimes I don't get the extra systemd lines, but I can't reproduce it 
> now. It's only for port 143 and 993. Other ports show only two dovecot 
> processes. Operation seems to be normal.
>
> Is this how it is supposed to be with dovecot 2.3?
> This is Ubuntu 16.04.
>
>
>

This is due to dovecot.socket file telling systemd to listen on these,
and spawn dovecot if a connection comes in.

Aki