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Ubuntu Server 22.04.1 LTS でMysSQL8.0セットアップ

2022/10/09に公開約2,300字

MySQLをインストール

sudo apt install mysql-server mysql-client

rootユーザーのパスワードを設定

sudo mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password by '{rootパスワード}';
quit

mysql_secure_installation を実行

sudo mysql_secure_installation

選択肢は以下のように進めた

Securing the MySQL server deployment.

Enter password for user root: 

VALIDATE PASSWORD COMPONENT can be used to test passwords
and improve security. It checks the strength of password
and allows the users to set only those passwords which are
secure enough. Would you like to setup VALIDATE PASSWORD component?

Press y|Y for Yes, any other key for No: n
Using existing password for root.
Change the password for root ? ((Press y|Y for Yes, any other key for No) : n

 ... skipping.
By default, a MySQL installation has an anonymous user,
allowing anyone to log into MySQL without having to have
a user account created for them. This is intended only for
testing, and to make the installation go a bit smoother.
You should remove them before moving into a production
environment.

Remove anonymous users? (Press y|Y for Yes, any other key for No) : y
Success.


Normally, root should only be allowed to connect from
'localhost'. This ensures that someone cannot guess at
the root password from the network.

Disallow root login remotely? (Press y|Y for Yes, any other key for No) : y
Success.

By default, MySQL comes with a database named 'test' that
anyone can access. This is also intended only for testing,
and should be removed before moving into a production
environment.


Remove test database and access to it? (Press y|Y for Yes, any other key for No) : y
 - Dropping test database...
Success.

 - Removing privileges on test database...
Success.

Reloading the privilege tables will ensure that all changes
made so far will take effect immediately.

Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y
Success.

All done! 

データベース作成

mysql -u root -p
CREATE DATABASE {データベース名};
CREATE USER ohnishi@'%' IDENTIFIED BY '{ユーザーパスワード}';
GRANT ALL PRIVILEGES ON kabu.* TO ohnishi@'%';
FLUSH PRIVILEGES;
quit

外部から接続できるように設定
sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

# bind-address          = 127.0.0.1
# mysqlx-bind-address   = 127.0.0.1

設定反映

sudo systemctl restart mysql

Discussion

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