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CentOS7にmysqlを導入し初期設定までやってみた

CentOS7にmysqlを入れる

  • MariaDBが入っている場合競合を起こす為存在の有無を確認

  • 実行結果

  • アンインストール

mysqlを入れる

初期設定を行う

  • DB初期設定
    • /usr/bin/mysql_secure_installation
# mysql_secure_installation

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

In order to log into MySQL to secure it, we'll need the current
password for the root user.  If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none):   <----- 起動したてでrootパスワードが設定されていないので、そのまま「Enter」。
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MySQL
root user without the proper authorisation.

Set root password? [Y/n] Y  <----- Rootパスワードを設定するので「Y」。
New password:       <----- パスワードを設定
Re-enter new password:  <----- パスワードを再入力
Password updated successfully!
Reloading privilege tables..
 ... Success!


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? [Y/n] Y     <----- 誰でもログインできる状態になっているのでそれをRemoveするので「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? [Y/n] Y   <----- RootでMySQLにリモートログインできるのはセキュリティ的にNGなので「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? [Y/n] Y  <----- testデータベースは不要のため「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? [Y/n] Y    <----- 上記設定による権限の変更等を即時反映したいので「Y」。
 ... Success!

Cleaning up...


All done!  If you've completed all of the above steps, your MySQL
installation should now be secure.

Thanks for using MySQL!
  • mysqlにログインする

    • sudo mysql -p
    • 設定したパスワードを入れる
  • 新規ユーザの追加のと全ての権限の付与

    • 今回はlocal環境での開発だけの用途を想定している為ユーザ作成以外の全ての権限を付与する(local環境以外では絶対にやらないほうがいいと思う)
sudo mysql -p
mysql> GRANT ALL PRIVILEGES ON *.* TO 'vagrant'@'localhost' IDENTIFIED BY 'vagrant';
mysql> FLUSH PRIVILEGES;
+-------------------------------------------------------------------------------------------------------------------------+
| Grants for vagrant@localhost                                                                                            |
+-------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'vagrant'@'localhost' IDENTIFIED BY PASSWORD '*04E6E1273D1783DF7D57DC5479FE01CFFDFD0058' |
+-------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
  • 全ての権限を付与することができたので作ったユーザでログインする

参考元

CentOS7にMySQLをインストール – sawara.me

【MySQL, 開発環境】MySQLのインストールと初期設定 - Qiita