MariaDB 10.3 : SSL/TLS Setting2021/03/15

	Configure SSL/TLS Setting on MariaDB.
[1]	Get SSL/TLS certificate or Create self signed certificate first. It uses self signed certificate on this example.
[2]	Configure MariaDB.

# copy certificates created in [1]

[root@www ~]#

mkdir /var/lib/mysql/pki

[root@www ~]#

cp /etc/pki/tls/certs/{server.crt,server.key,ca-bundle.crt} /var/lib/mysql/pki/

[root@www ~]#

chown -R mysql. /var/lib/mysql/pki

[root@www ~]#

vi /etc/my.cnf.d/mariadb-server.cnf

# add settings under the [mysqld] section

[mysqld]

ssl-ca=/var/lib/mysql/pki/ca-bundle.crt
ssl-cert=/var/lib/mysql/pki/server.crt
ssl-key=/var/lib/mysql/pki/server.key

[root@www ~]#

systemctl restart mariadb

# verify settings

[root@www ~]#

mysql -u root -p

Enter password:

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 8
Server version: 10.3.27-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# OK if status is like follows
MariaDB [(none)]> show variables like '%ssl%'; 
+---------------------+----------------------------------+
| Variable_name       | Value                            |
+---------------------+----------------------------------+
| have_openssl        | YES                              |
| have_ssl            | YES                              |
| ssl_ca              | /var/lib/mysql/pki/ca-bundle.crt |
| ssl_capath          |                                  |
| ssl_cert            | /var/lib/mysql/pki/server.crt    |
| ssl_cipher          |                                  |
| ssl_crl             |                                  |
| ssl_crlpath         |                                  |
| ssl_key             | /var/lib/mysql/pki/server.key    |
| version_ssl_library | OpenSSL 1.1.1g FIPS  21 Apr 2020 |
+---------------------+----------------------------------+
10 rows in set (0.001 sec)

[3]	To connect with SSL/TLS from Clients, connect with specifying [--ssl] option.

[root@www ~]#

mysql -u root -p --ssl

Enter password:

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 9
Server version: 10.3.27-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# show status
MariaDB [(none)]> show status like 'ssl_cipher'; 
+---------------+------------------------+
| Variable_name | Value                  |
+---------------+------------------------+
| Ssl_cipher    | TLS_AES_256_GCM_SHA384 |
+---------------+------------------------+
1 row in set (0.001 sec)

MariaDB [(none)]> exit 
Bye

# for no SSL/TLS connection

[root@www ~]#

mysql -u root -p

Enter password:

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 10
Server version: 10.3.27-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# value is empty
MariaDB [(none)]> show status like 'ssl_cipher'; 
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| Ssl_cipher    |       |
+---------------+-------+
1 row in set (0.001 sec)

[4]	To force require users to connect with SSL/TLS, set like follows.

[root@www ~]#

mysql -u root -p

Enter password:

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.3.27-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# create a user who is required SSL/TLS
MariaDB [(none)]> create user redhat identified by 'password' require ssl; 
Query OK, 0 rows affected (0.00 sec)

# SSL/TLS required users are set [ssl_type] = [ANY]
MariaDB [(none)]> select user,host,ssl_type from mysql.user; 
+-----------+-----------+----------+
| user      | host      | ssl_type |
+-----------+-----------+----------+
| root      | localhost |          |
| root      | 127.0.0.1 |          |
| root      | ::1       |          |
| cent      | %         |          |
| redhat    | %         | ANY      |
+-----------+-----------+----------+
5 rows in set (0.001 sec)

# set SSL/TLS required to an existing user
MariaDB [(none)]> grant usage on *.* to 'cent'@'%' require ssl; 
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> select user,host,ssl_type from mysql.user; 
+-----------+-----------+----------+
| user      | host      | ssl_type |
+-----------+-----------+----------+
| root      | localhost |          |
| root      | 127.0.0.1 |          |
| root      | ::1       |          |
| cent      | %         | ANY      |
| redhat    | %         | ANY      |
+-----------+-----------+----------+
5 rows in set (0.000 sec)

Matched Content