On 20.07.2019 17:52, John Fawcett via dovecot wrote:
On 18/07/2019 23:24, Reio Remma via dovecot wrote:
Hello!
I'm attempting to get Dovecot working with MySQL user database on
another machine. I can connect to the MySQL (5.7.26) instance with SSL
enabled:
mysql -h db.mrst.ee --ssl-ca=/etc/dovecot/ca.pem
--ssl-cert=/etc/dovecot/client-cert.pem
--ssl-key=/etc/dovecot/client-key.pem --ssl-cipher=DHE-RSA-AES256-SHA
-u vmail -p
However if I use the same values in dovecot-sql.conf.ext, I get the
following error:
Jul 19 00:20:18 turin dovecot: master: Dovecot v2.3.7 (494d20bdc)
starting up for imap, lmtp, sieve (core dumps disabled)
Jul 19 00:20:18 turin dovecot: auth-worker(82996): Error:
mysql(db.mrst.ee): Connect failed to database (vmail): SSL connection
error: protocol version mismatch - waiting for 1 seconds before retry
Jul 19 00:20:18 turin dovecot: auth-worker(82996): Error:
mysql(db.mrst.ee): Connect failed to database (vmail): SSL connection
error: protocol version mismatch - waiting for 1 seconds before retry
Jul 19 00:20:19 turin dovecot: auth-worker(82996): Error:
mysql(db.mrst.ee): Connect failed to database (vmail): Connections
using insecure transport are prohibited while
--require_secure_transport=ON. - waiting for 5 seconds before retry
Jul 19 00:20:19 turin dovecot: auth-worker(82996): Error:
mysql(db.mrst.ee): Connect failed to database (vmail): Connections
using insecure transport are prohibited while
--require_secure_transport=ON. - waiting for 5 seconds before retry
Database connection string:
connect = host=db.mrst.ee dbname=vmail user=vmail password=stuff \
ssl_ca=/etc/dovecot/ca.pem \
ssl_cert=/etc/dovecot/client-cert.pem \
ssl_key=/etc/dovecot/client-key.pem \
ssl_cipher=DHE-RSA-AES256-SHA
If I leave the ssl_cipher unset, I get:
Jul 19 00:23:41 turin dovecot: auth-worker(83069): Error:
mysql(db.mrst.ee): Connect failed to database (vmail): SSL connection
error: Failed to set ciphers to use - waiting for 1 seconds before retry
Any ideas?
Thanks!
Reio
One difference between your testing manually with mysql client and the
same configuration in dovecot is the "ssl_verify_server_cert" parameter.
Dovecot is setting it if it is not specified. So to make the tests the
same you should either specify the --ssl_verify_server_cert parameter to
mysql or set it to no in the dovecot configuration.
John
This works as well:
mysql -h db.mrst.ee --ssl-ca=/etc/dovecot/ca.pem
--ssl-cert=/etc/dovecot/client-cert.pem
--ssl-key=/etc/dovecot/client-key.pem --ssl-cipher=DHE-RSA-AES256-SHA
--ssl-mode=VERIFY_IDENTITY -u vmail -p
Protocol mismatch persists when I set ssl_verify_server_cert=no for
Dovecot MySQL connection.
Thanks,
Reio
