MySQL 8.0 : SSL/TLS Setting2022/09/28 |
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Configure SSL/TLS Setting on MySQL.
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| [1] | On MySQL server side, mysqld generates self signed certificates by default, so it's possible to connect to mysqld with SSL/TLS session by default. |
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# mysqld generates them root@dlp:~# ll /var/lib/mysql/*.pem -rw------- 1 mysql mysql 1705 Sep 28 01:36 /var/lib/mysql/ca-key.pem -rw-r--r-- 1 mysql mysql 1112 Sep 28 01:36 /var/lib/mysql/ca.pem -rw-r--r-- 1 mysql mysql 1112 Sep 28 01:36 /var/lib/mysql/client-cert.pem -rw------- 1 mysql mysql 1705 Sep 28 01:36 /var/lib/mysql/client-key.pem -rw------- 1 mysql mysql 1705 Sep 28 01:36 /var/lib/mysql/private_key.pem -rw-r--r-- 1 mysql mysql 452 Sep 28 01:36 /var/lib/mysql/public_key.pem -rw-r--r-- 1 mysql mysql 1112 Sep 28 01:36 /var/lib/mysql/server-cert.pem -rw------- 1 mysql mysql 1705 Sep 28 01:36 /var/lib/mysql/server-key.pemroot@dlp:~# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 9 Server version: 8.0.30-0ubuntu0.22.04.1 (Ubuntu) Copyright (c) 2000, 2022, 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. # SSL is enabled 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 | ca.pem | | ssl_capath | | | ssl_cert | server-cert.pem | | ssl_cipher | | | ssl_crl | | | ssl_crlpath | | | ssl_fips_mode | OFF | | ssl_key | server-key.pem | | ssl_session_cache_mode | ON | | ssl_session_cache_timeout | 300 | +-------------------------------------+-----------------+ 27 rows in set (0.00 sec) # certificates mysqld generated are 10 years available mysql> show status like 'Ssl_server_not%'; +-----------------------+--------------------------+ | Variable_name | Value | +-----------------------+--------------------------+ | Ssl_server_not_after | Sep 25 01:36:30 2032 GMT | | Ssl_server_not_before | Sep 28 01:36:30 2022 GMT | +-----------------------+--------------------------+ 2 rows in set (0.00 sec) |
| [2] | To force require users to connect with SSL/TLS, set like follows. |
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root@dlp:~# mysql Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 10 Server version: 8.0.30-0ubuntu0.22.04.1 (Ubuntu) Copyright (c) 2000, 2022, 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. # create a user who is required SSL/TLS mysql> create user debian identified by 'password' require ssl; Query OK, 0 rows affected (0.01 sec) # show status SSL/TLS required users set [ssl_type] [ANY] mysql> select user,host,ssl_type,plugin from mysql.user; +------------------+-----------+----------+-----------------------+ | user | host | ssl_type | plugin | +------------------+-----------+----------+-----------------------+ | debian | % | ANY | caching_sha2_password | | ubuntu | % | | caching_sha2_password | | debian-sys-maint | localhost | | caching_sha2_password | | mysql.infoschema | localhost | | caching_sha2_password | | mysql.session | localhost | | caching_sha2_password | | mysql.sys | localhost | | caching_sha2_password | | root | localhost | | auth_socket | +------------------+-----------+----------+-----------------------+ 7 rows in set (0.00 sec) # set SSL/TLS required to an existing user mysql> alter user 'ubuntu'@'%' require ssl; Query OK, 0 rows affected (0.01 sec) mysql> select user,host,ssl_type,plugin from mysql.user; +------------------+-----------+----------+-----------------------+ | user | host | ssl_type | plugin | +------------------+-----------+----------+-----------------------+ | debian | % | ANY | caching_sha2_password | | ubuntu | % | ANY | caching_sha2_password | | debian-sys-maint | localhost | | caching_sha2_password | | mysql.infoschema | localhost | | caching_sha2_password | | mysql.session | localhost | | caching_sha2_password | | mysql.sys | localhost | | caching_sha2_password | | root | localhost | | auth_socket | +------------------+-----------+----------+-----------------------+ 7 rows in set (0.00 sec) |
| [3] | To connect via TCP, SSL/TLS is enabled automatically. |
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root@dlp:~# mysql -u ubuntu -p --protocol=tcp Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 19 Server version: 8.0.30-0ubuntu0.22.04.1 (Ubuntu) Copyright (c) 2000, 2022, 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. # show status mysql> show status like 'ssl_cipher'; +---------------+------------------------+ | Variable_name | Value | +---------------+------------------------+ | Ssl_cipher | TLS_AES_256_GCM_SHA384 | +---------------+------------------------+ 1 row in set (0.00 sec) mysql> exit Bye # on no SSL/TLS connection root@dlp:~# mysql -u ubuntu -p --ssl-mode=disabled --protocol=tcp Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 44 Server version: 8.0.30-0ubuntu0.22.04.1 (Ubuntu) Copyright (c) 2000, 2022, 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. # value is empty mysql> show status like 'ssl_cipher'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | Ssl_cipher | | +---------------+-------+ 1 row in set (0.00 sec) mysql> exit Bye |
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