MariaDB 11.8 : SSL/TLS の設定2025/11/24 |
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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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| [1] |
事前に SSL/TLS 証明書を取得 または
自己署名の証明書を作成しておきます。 |
| [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 www:~ # mkdir /var/lib/mysql/pki www:~ # cp /etc/ssl/private/{server.crt,server.key} /var/lib/mysql/pki/
www:~ #
vi /etc/my.cnf # 61行目 : 追記
ssl-cert=/var/lib/mysql/pki/server.crt
ssl-key=/var/lib/mysql/pki/server.key
www:~ #
systemctl restart mariadb
# 設定確認 www:~ # mariadb Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 3 Server version: 11.8.3-MariaDB MariaDB package 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 3.5.0 8 Apr 2025 | +---------------------+-------------------------------+ 10 rows in set (0.001 sec) |
| [3] | 以上で [mariadb] コマンドに暗黙的に [--ssl] オプションが付加され SSL/TLS で接続できます。 |
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www:~ # mariadb Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 4 Server version: 11.8.3-MariaDB MariaDB package 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 (0.000 sec) MariaDB [(none)]> exit Bye # 非暗号化通信の場合 www:~ # mariadb --skip-ssl Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 5 Server version: 11.8.3-MariaDB MariaDB package 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 (0.000 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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www:~ # mariadb Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 6 Server version: 11.8.3-MariaDB MariaDB package 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 leap 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 | | | PUBLIC | | | | | localhost | | | | www.srv.world | | | suse | % | | | sles | % | | | leap | % | ANY | +-------------+---------------+----------+ 9 rows in set (0.001 sec) # 既存ユーザーを SSL/TLS 必須にする MariaDB [(none)]> grant usage on *.* to 'sles'@'%' 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 | | | PUBLIC | | | | | localhost | | | | www.srv.world | | | suse | % | | | sles | % | ANY | | leap | % | ANY | +-------------+---------------+----------+ 9 rows in set (0.001 sec) |
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