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mariadb 10.6.4 SSL access with mysql-workbench

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hello -

i am trying to use google-workbench to connect to a MariaDB server.

i have a 10.5.12 server running on the google-cloud, and i am indeed very successful to access the server no problem using mysql-workbench, but i am unable to use mysql-workbench connect to a 10.6.4 running locally on a virtualbox vm.

here are my 10.5.2 settings on the google-cloud:

[mariadb-10.5]
ssl_cert = /etc/my.cnf.d/certificates/server-cert.pem
ssl_key = /etc/my.cnf.d/certificates/server-key.pem
ssl_ca = /etc/my.cnf.d/certificates/ca.pem

SHOW GLOBAL  VARIABLES LIKE '%Ssl%';
+---------------------+--------------------------------------------+
| Variable_name       | Value                                      |
+---------------------+--------------------------------------------+
| have_openssl        | YES                                        |
| have_ssl            | YES                                        |
| ssl_ca              | /etc/my.cnf.d/certificates/ca.pem          |
| ssl_capath          |                                            |
| ssl_cert            | /etc/my.cnf.d/certificates/server-cert.pem |
| ssl_cipher          |                                            |
| ssl_crl             |                                            |
| ssl_crlpath         |                                            |
| ssl_key             | /etc/my.cnf.d/certificates/server-key.pem  |
| version_ssl_library | OpenSSL 1.1.1g FIPS  21 Apr 2020           |
+---------------------+--------------------------------------------+
10 rows in set (0.001 sec)

status
--------------
mariadb  Ver 15.1 Distrib 10.5.12-MariaDB, for Linux (x86_64) using readline 5.1

Connection id:          23
Current database:
Current user:           root@localhost
SSL:                    Not in use
Current pager:          stdout
Using outfile:          ''
Using delimiter:        ;
Server:                 MariaDB
Server version:         10.5.12-MariaDB MariaDB Server
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    latin1
Db     characterset:    latin1
Client characterset:    utf8
Conn.  characterset:    utf8
UNIX socket:            /var/lib/mysql/mysql.sock
Uptime:                 1 hour 57 min 24 sec

Threads: 3  Questions: 118  Slow queries: 0  Opens: 20  Open tables: 13  Queries per second avg: 0.016
--------------

however, when i try this on 10.6.4 using near-identical my.cnf.d file, i get this message below (and also on mysql-workbench) (notice have_ssl keeps showing as 'disabled')

 mariadb  --ssl-verify-server-cert ;
ERROR 2026 (HY000): SSL connection error: SSL is required, but the server does not support it

here are my settings:

[mariadb-10.6]
ssl_cert = /etc/my.cnf.d/certificates/server-cert.pem
ssl_key = /etc/my.cnf.d/certificates/server-key.pem
ssl_ca = /etc/my.cnf.d/certificates/ca.pem

SHOW VARIABLES LIKE '%ssl%';
+---------------------+--------------------------------------------+
| Variable_name       | Value                                      |
+---------------------+--------------------------------------------+
| have_openssl        | YES                                        |
| have_ssl            | DISABLED                                   |
| ssl_ca              | /etc/my.cnf.d/certificates/ca.pem          |
| ssl_capath          |                                            |
| ssl_cert            | /etc/my.cnf.d/certificates/server-cert.pem |
| ssl_cipher          | AES128+EECDH:AES128+EDH                    |
| ssl_crl             |                                            |
| ssl_crlpath         |                                            |
| ssl_key             | /etc/my.cnf.d/certificates/server-key.pem  |
| version_ssl_library | OpenSSL 1.1.1g FIPS  21 Apr 2020           |
+---------------------+--------

MariaDB [(none)]> status
--------------
mariadb  Ver 15.1 Distrib 10.6.4-MariaDB, for Linux (x86_64) using readline 5.1

Connection id:          6
Current database:
Current user:           root@localhost
SSL:                    Not in use
Current pager:          stdout
Using outfile:          ''
Using delimiter:        ;
Server:                 MariaDB
Server version:         10.6.4-MariaDB MariaDB Server
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    latin1
Db     characterset:    latin1
Client characterset:    utf8mb3
Conn.  characterset:    utf8mb3
UNIX socket:            /var/lib/mysql/mysql.sock
Uptime:                 8 min 34 sec

Threads: 1  Questions: 12  Slow queries: 0  Opens: 18  Open tables: 11  Queries per second avg: 0.023
--------------

oddly enough, on 10.5 i get this message:

mariadb  --ssl-verify-server-cert
ERROR 2026 (HY000): SSL connection error: self signed certificate in certificate chain

but at least mysql-workbench is working!!

any suggestions?

EDIT: i am also seeing these error messages:

systemctl status mariadb.service ;
Nov 08 16:56:19 localhost.localdomain mariadbd[13322]: 2021-11-08 16:56:19 7 [Warning] Aborted connection 7 to db: 'unconnected' user: 'unauthenticated' host: '192.168.123.190' (This connection closed normally without authentication)

i am VERY tempted to install 10.5 on my Virtualbox and 10.6 on the google-cloud vm & see if the problem follows the Mariadb version or the platform.

EDIT 2: i installed 10.5 on Virtualbox & it works fine. i created an install script on Github and ran identically as both 10.5 and 10.6 - and definitely its something in 10.6, or at least another requirement that i missed.

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