ot: fail2ban dovecot setup

[voytek at sbt.net.au]

On Mon, December 18, 2017 12:50 pm, Gao wrote:
> Have you tried just using the the filter dovecot.conf come with the
> fail2ban?
>
> # cat /etc/fail2ban/filter.d/dovecot.conf

Gao, thanks

so do I just put enable in /etc/fail2ban/jail.local ?

# cat jail.local
[dovecot]
enabled    = true
filter     = dovecot

]# fail2ban-client status  dovecot
Status for the jail: dovecot
|- Filter
|  |- Currently failed: 0
|  |- Total failed:     0
|  `- Journal matches:  _SYSTEMD_UNIT=dovecot.service
`- Actions
   |- Currently banned: 0
   |- Total banned:     0
   `- Banned IP list:


(sorry, I'm structure what I had on old server, it seems to work with smtp
auth, so I thought that's correct way to do)

# fail2ban-client status
Status
|- Number of jail:      2
`- Jail list:   dovecot, postfx-sasl


 fail2ban-client status  postfx-sasl
Status for the jail: postfx-sasl
|- Filter
|  |- Currently failed: 0
|  |- Total failed:     0
|  `- File list:        /var/log/maillog
`- Actions
   |- Currently banned: 2
   |- Total banned:     2
   `- Banned IP list:   120.150.227.127 125.126.168.42