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content/20240324102510 MySQL MariaDBのインストール.md
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# 20240324102510 MySQL MariaDBのインストール
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#raspi #mysql #server #MariaDB
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MariaDBはMySQLのforkで、互換性もあり性能も向上しているとのこと。現状(20240324)ではMariaDBを使用した方がよいかもしれない。そもそもraspberry pi OS には`mysql-server`のパッケージが存在していない。
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```
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$ sudo apt install mariadb-server
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$ sudo mysql_secure_installation
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```
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```
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$ sudo mysql_secure_installation
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NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
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SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
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In order to log into MariaDB to secure it, we'll need the current
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password for the root user. If you've just installed MariaDB, and
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haven't set the root password yet, you should just press enter here.
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Enter current password for root (enter for none):[Enter]
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OK, successfully used password, moving on...
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Setting the root password or using the unix_socket ensures that nobody
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can log into the MariaDB root user without the proper authorisation.
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You already have your root account protected, so you can safely answer 'n'.
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Switch to unix_socket authentication [Y/n] n
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... skipping.
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You already have your root account protected, so you can safely answer 'n'.
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Change the root password? [Y/n] [Enter]
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New password:[パスワード入力]
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Re-enter new password:[パスワード入力]
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Password updated successfully!
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Reloading privilege tables..
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... Success!
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By default, a MariaDB installation has an anonymous user, allowing anyone
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to log into MariaDB without having to have a user account created for
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them. This is intended only for testing, and to make the installation
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go a bit smoother. You should remove them before moving into a
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production environment.
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Remove anonymous users? [Y/n] [Enter]
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... Success!
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Normally, root should only be allowed to connect from 'localhost'. This
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ensures that someone cannot guess at the root password from the network.
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Disallow root login remotely? [Y/n] [n]
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... skipping.
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By default, MariaDB comes with a database named 'test' that anyone can
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access. This is also intended only for testing, and should be removed
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before moving into a production environment.
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Remove test database and access to it? [Y/n] [Enter]
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- Dropping test database...
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... Success!
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- Removing privileges on test database...
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... Success!
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Reloading the privilege tables will ensure that all changes made so far
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will take effect immediately.
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Reload privilege tables now? [Y/n] [Enter]
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... Success!
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Cleaning up...
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All done! If you've completed all of the above steps, your MariaDB
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installation should now be secure.
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Thanks for using MariaDB!
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```
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(設定は特に変更せず)
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```
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$ grant all privileges on *.* to root@"%" identified by '****' with grant option;
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$ sudo systemctl restart mysql
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```
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# Ref.
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- [MariaDB Foundation - MariaDB.org](https://mariadb.org/)
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- [Raspberry PiへのMariaDB セットアップ 2022年版 #MySQL - Qiita](https://qiita.com/airpocket/items/f1dd8e0d32be6075b7de) typo多め注意
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