[2] MySQL – SSL/TLS

27 stycznia 2022 Wyłączono przez Adam [zicherka] Nogły

Skonfiguruj ustawienia SSL/TLS dla  bazy MySQL.

[1] Pobierz certyfikaty z Let’s Encrypt lub wygeneruj swoje własne. My wykorzystamy nasze własne wygenerowane.

[2] Skopiuj certyfikaty i skonfiguruj MySQL.

[root@vlsr01 ~]# mkdir /var/lib/mysql/pki
[root@vlsr01 ~]# cp /etc/pki/tls/certs/server.{crt,key} /var/lib/mysql/pki/
[root@vlsr01 ~]# chown -R mysql. /var/lib/mysql/pki
[root@vlsr01 ~]# mcedit /etc/my.cnf.d/mysql-server.cnf
#dodaj w sekcji [mysqld]
[mysqld]
ssl-cert=/var/lib/mysql/pki/server.crt
ssl-key=/var/lib/mysql/pki/server.key

[root@vlsr01 ~]# systemctl restart mysqld

#sprawdź ustawienia
[root@vlsr01 ~]# mysql -u root -p
Enter password: #wpisz hasło
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show variables like '%ssl%';
+-------------------------------------+-------------------------------+
| Variable_name                       | Value                         |
+-------------------------------------+-------------------------------+
| admin_ssl_ca                        |                               |
| admin_ssl_capath                    |                               |
| admin_ssl_cert                      |                               |
| admin_ssl_cipher                    |                               |
| admin_ssl_crl                       |                               |
| admin_ssl_crlpath                   |                               |
| admin_ssl_key                       |                               |
| have_openssl                        | YES                           |
| have_ssl                            | YES                           |
| mysqlx_ssl_ca                       |                               |
| mysqlx_ssl_capath                   |                               |
| mysqlx_ssl_cert                     |                               |
| mysqlx_ssl_cipher                   |                               |
| mysqlx_ssl_crl                      |                               |
| mysqlx_ssl_crlpath                  |                               |
| mysqlx_ssl_key                      |                               |
| performance_schema_show_processlist | OFF                           |
| ssl_ca                              |                               |
| ssl_capath                          |                               |
| ssl_cert                            | /var/lib/mysql/pki/server.crt |
| ssl_cipher                          |                               |
| ssl_crl                             |                               |
| ssl_crlpath                         |                               |
| ssl_fips_mode                       | OFF                           |
| ssl_key                             | /var/lib/mysql/pki/server.key |
+-------------------------------------+-------------------------------+
25 rows in set (0,00 sec)

[3] Aby połączyć się z bazą za pomocą SSL/TLS użyj przełącznika [–ssl-mode].

[root@vlsr01 ~]# mysql -u root -p --ssl-mode=required --protocol=tcp
Enter password: #wpisz hasło
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show status like 'ssl_cipher';
+---------------+------------------------+
| Variable_name | Value                  |
+---------------+------------------------+
| Ssl_cipher    | TLS_AES_256_GCM_SHA384 |
+---------------+------------------------+
1 row in set (0,01 sec)
mysql> exit
Bye

#bez SSL/TLS
[root@vlsr01 ~]# mysql -u root -p
Enter password: #wpisz hasło
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show status like 'ssl_cipher';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| Ssl_cipher    |       |
+---------------+-------+
1 row in set (0,00 sec)

[4] Aby wymusić łączenie się za pomocą SSL/TLS wykonaj.

[root@vlsr01 ~]# mysql -u root -p
Enter password: #wpisz hasło
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 8.0.26 Source distribution
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
#użytkownik bez wymuszonego SSL/TLS
mysql> create user nossluser identified by 'TajneHasło';
Query OK, 0 rows affected (0,00 sec)
#użytkownik z wymuszonym SSL/TLS
mysql> create user ssluser identified by 'TajneHasło' require ssl;
Query OK, 0 rows affected (0,00 sec)
#sprawdź status wymagań SSL/TLS użytkowników
mysql> select user,host,ssl_type from mysql.user;
+------------------+-----------+----------+
| user             | host      | ssl_type |
+------------------+-----------+----------+
| nossluser        | %         |          |
| ssluser          | %         | ANY      |
| mysql.infoschema | localhost |          |
| mysql.session    | localhost |          |
| mysql.sys        | localhost |          |
| root             | localhost |          |
+------------------+-----------+----------+
6 rows in set (0,01 sec)
#ustaw SSL/TLS dla istniejącego użytkownika
mysql> alter user 'nossluser'@'%' require ssl;
Query OK, 0 rows affected (0,00 sec)
mysql> select user,host,ssl_type from mysql.user;
+------------------+-----------+----------+
| user             | host      | ssl_type |
+------------------+-----------+----------+
| nossluser        | %         | ANY      |
| ssluser          | %         | ANY      |
| mysql.infoschema | localhost |          |
| mysql.session    | localhost |          |
| mysql.sys        | localhost |          |
| root             | localhost |          |
+------------------+-----------+----------+
6 rows in set (0,00 sec)