Bonjour Markus,

• Have you checked that port 12345 as specified below is open/forwarded and actually /used/ by dovecot (e.g., use "netstat -tulpn|grep dovecot")?

Yes of course:

tcp 0 0 0.0.0.0:12345 0.0.0.0:* LISTEN 22025/dovecot tcp6 0 0 :::12345 :::* LISTEN 22025/dovecot

• Did you retrace your steps and have you verified that synchronisation works with ssl disabled?

This dovecot is working well with my email client and web mail interface, I would prefer not to start playing with this config file ...

• Did you verify your certificate files (e.g., "openssl verify -verbose -CAfile /etc/ssl/certs/GandiCA2.pem /etc/ssl/certs/key.crt")?

yes: openssl verify -verbose -CAfile /etc/ssl/certs/GandiCA2.pem /etc/ssl/certs/key.crt /etc/ssl/certs/key.crt: OK

Personally, I prefer to use a single, specialised tool to manage certificates/encryption (which in my case is stunnel); all other programs are set up using (link-)local ip addresses only. If everything but encryption works with your setup, this might be a possible "workaround". (Apart from that, stunnel debug mode is very detailed and can help you to rule out problems with the certificates/connections between two nodes.) And once the latter works but the dovecot setup below still does not, it would also point to a problem with certificate handling by dovecot (could be library related).

This morning logs:

Feb 07 05:50:13 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 07 05:50:13 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL Feb 07 05:50:13 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 07 05:50:13 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL Feb 07 05:50:13 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 07 05:50:13 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL Feb 07 05:50:13 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 07 05:50:13 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL Feb 07 05:50:13 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 07 05:50:13 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL

KR, Markus

Thx

Am 06.02.2017 um 07:36 schrieb Thierry:

...

Hi Aki,

I do not have any error message but (on both server):

doveadm replicator status '*' doveadm(root): Fatal: net_connect_unix(/var/run/dovecot/replicator-doveadm) failed: Connection refused

Thx

Le vendredi 3 février 2017 à 17:09:52, vous écriviez :

...

Please keep responses in list. rm -f /var/lib/dovecot/ssl-parameters.dat, i think it was in that dir.

...

On 2017-02-03 17:00, Thierry wrote:

...

Hi,

I have removed the '<' :

ssl_client_ca_file = /etc/ssl/certs/GandiCA2.pem

But now:

doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL

Any idea ?

Thx

...

Yes. The ssl_client_ca_file is not actually expecting <, just file name. Aki On 2017-02-03 15:13, Thierry wrote:

...

Hi,

I have made change:

ssl_protocols = !SSLv2 !SSLv3 ssl = required verbose_ssl = no ssl_key = </etc/ssl/private/private.key ssl_cert = </etc/ssl/certs/key.crt ssl_client_ca_file = </etc/ssl/certs/GandiCA2.pem

Create a listener for doveadm-server

service doveadm { user = vmail inet_listener { port = 12345 ssl= yes } }

and doveadm_port = 12345 // mail_replica = tcps:server2.domain.ltd # use doveadm_port

And now:

Feb 03 14:11:16 doveadm(user1@domain.ltd): Error: sync: Couldn't initialize SSL context: Can't load CA certs from directory : error:02001024:system library:fopen:File name too long Feb 03 14:11:17 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 03 14:11:17 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL

Thx for your support

Le vendredi 3 février 2017 à 11:34:43, vous écriviez :

> Hello, > On 02/03/2017 08:51 AM, Thierry wrote: >> Hello, >> >> Still working with my dsync pb. >> I have done a clone (vmware) of my email server. >> Today I have two strictly identical emails servers (server1 >> (main) and server2 (bck) (except IP, hostname and mail_replica). >> >> The ssl config on my both server: >> >> ssl_protocols = !SSLv2 !SSLv3 >> ssl = required >> verbose_ssl = no >> ssl_key = </etc/ssl/private/private.key >> ssl_cert = </etc/ssl/certs/key.crt >> ssl_ca = </etc/ssl/certs/GandiStandardSSLCA2.pem > I think it should be ssl_client_ca_file = > </etc/ssl/certs/GandiStandardSSLCA2.pem for you. >> This config is working for my email client and my email web >> interface ... >> >> Are they on the right order ? >> >> mail_replica = tcps:server1@domain.ltd and tcps:server2@domain.ltd >> >> There is trafic on my iptables rules on my both servers: >> >> 60 3600 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:4711 >> >> >> >> My error message from server1 (main server): >> >> Feb 03 08:38:08 doveadm(user1@domain.ltd): Error: sync: Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) >> Feb 03 08:42:35 doveadm(user2@domain.ltd): Error: sync: Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) >> Feb 03 08:42:35 doveadm(user3@domain.ltd): Error: sync: Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) >> Feb 03 08:42:35 doveadm(user4@domain.ltd): Error: sync: Couldn't initialize SSL context: Can't verify remote server certs without trusted CAs (ssl_client_ca_* settings) >> >> No logs from server2 >> >> Any ideas ? >> >> Thx for your support >> >>

-- Cordialement, Thierry e-mail : lenaigst@maelenn.org

Bonjour Markus,

Things are working but without SSL. I will have a look and come back to you.

Thx

Le mercredi 8 février 2017 à 00:31:08, vous écriviez :

Dear Thierry,

(I'm omitting the remainder of your post because the below has a separate root cause from what has been assumed.)

...

[...] This morning logs:

Feb 07 05:50:13 doveadm: Error: Corrupted SSL parameters file in state_dir: ssl-parameters.dat - disabling SSL 360 Feb 07 05:50:13 doveadm: Error: Couldn't initialize SSL parameters, disabling SSL [...]

Did I miss these lines before or did the messages change? In either case, have a look at http://wiki.dovecot.org/SSL/DovecotConfiguration#SSL_security_settings which explains how to fix this in detail--if you're lucky, your problems might be gone afterwards.

KR, Markus

-- Cordialement, Thierry e-mail : lenaigst@maelenn.org