MySQLをインストールしてみた。 - MySQL 5.6

本投稿では、「MySQL 5.6」のインストール方法を紹介します。

はじめに

作業環境

- さくらのVPS/2G 
- CentOS 7 or 6.6

Yumリポジトリを追加

Yumリポジトリを追加します。

▼CentOS 6

# rpm -Uvh http://repo.mysql.com/mysql-community-release-el6.rpm

▼CentOS 7

# rpm -Uvh http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

普段は、標準レポジトリを利用するように「enabled」の値を1 → 0へ変更する

# sed -i '/^enabled/d' /etc/yum.repos.d/mysql-community.repo
# sed -i 's/\]$/\]\nenabled=0/g' /etc/yum.repos.d/mysql-community.repo

MySQLをインストール

インストール

MySQL 5.6を追加したYUMリポジトリを指定してインストールする

# yum --enablerepo=mysql56-community install -y mysql-server

起動

MySQLを起動させて、自動起動設定へ登録する

▼CentOS 6

# service mysqld start
# chkconfig mysqld on

▼CentOS 7

# systemctl start mysqld
# systemctl enable mysqld

セットアップスクリプト

MySQLには、セットアップスクリプトが用意されています。

セットアップスクリプトで、rootユーザパスワードの設定、不要なユーザとデータベースの削除を行いましょう。

# 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):  ←　空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]   ←　空Enter
New password:              ←  任意のパスワードを入力
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]  ←　空Enter
 ... 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]  ←　空Enter
 ... 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]  ←　空Enter
 - Dropping test database...
ERROR 1008 (HY000) at line 1: Can't drop database 'test'; database doesn't exist
 ... Failed!  Not critical, keep moving...
 - 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]  ←　空Enter
 ... Success!




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

Thanks for using MySQL!


Cleaning up...

動作確認

rootユーザでログインできることを確認します。

# mysql -u root -p

ログインできれば、インストールは完了です。