MariaDB 10.5 : SSL/TLS の設定2022/03/17 |
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MariaDB で SSL/TLS による暗号化通信の設定を有効にします。
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| [2] | 作成した証明書をコピーして SSL/TLS の設定をします。 |
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# 証明書をコピー [root@www ~]# mkdir /var/lib/mysql/pki [root@www ~]# cp /etc/pki/tls/certs/{server.crt,server.key} /var/lib/mysql/pki/
[root@www ~]#
chown -R mysql. /var/lib/mysql/pki
[root@www ~]#
vi /etc/my.cnf.d/mariadb-server.cnf # [mysqld] セクション内に追記 [mysqld]
ssl-cert=/var/lib/mysql/pki/server.crt
ssl-key=/var/lib/mysql/pki/server.key
[root@www ~]#
systemctl restart mariadb
# 設定確認 [root@www ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 3 Server version: 10.5.13-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. # 以下のように表示されれば OK MariaDB [(none)]> show variables like '%ssl%'; +---------------------+-------------------------------+ | Variable_name | Value | +---------------------+-------------------------------+ | have_openssl | YES | | have_ssl | YES | | ssl_ca | | | 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 3.0.1 14 Dec 2021 | +---------------------+-------------------------------+ 10 rows in set (0.001 sec) |
| [3] | SSL/TLS で接続する場合は [--ssl] オプションを指定して接続します。 |
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[root@www ~]# mysql --ssl Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 4 Server version: 10.5.13-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. # 接続状況確認 MariaDB [(none)]> show status like 'ssl_cipher'; +---------------+------------------------+ | Variable_name | Value | +---------------+------------------------+ | Ssl_cipher | TLS_AES_256_GCM_SHA384 | +---------------+------------------------+ 1 row in set (0.003 sec) MariaDB [(none)]> exit Bye # 非暗号化通信の場合 [root@www ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 5 Server version: 10.5.13-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. # 値はブランク MariaDB [(none)]> show status like 'ssl_cipher'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | Ssl_cipher | | +---------------+-------+ 1 row in set (0.001 sec) |
| [4] | ユーザーに対して SSL/TLS アクセスを必須にする場合は、以下のように設定します。 |
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[root@www ~]# mysql Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 6 Server version: 10.5.13-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. # SSL/TLS 必須ユーザーを新規作成 MariaDB [(none)]> create user redhat identified by 'password' require ssl; Query OK, 0 rows affected (0.00 sec) # SSL/TLS 必須ユーザーは ssl_type が ANY MariaDB [(none)]> select user,host,ssl_type from mysql.user; +-------------+-----------+----------+ | User | Host | ssl_type | +-------------+-----------+----------+ | mariadb.sys | localhost | | | root | localhost | | | mysql | localhost | | | cent | % | | | redhat | % | ANY | +-------------+-----------+----------+ 5 rows in set (0.002 sec) # 既存ユーザーを SSL/TLS 必須にする 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 | +-------------+-----------+----------+ | mariadb.sys | localhost | | | root | localhost | | | mysql | localhost | | | cent | % | ANY | | redhat | % | ANY | +-------------+-----------+----------+ 5 rows in set (0.001 sec) |
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