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MySQL インストール
2015/12/03
 
MySQL をインストールして、データベースサーバーを構築します。
[1] MySQL をインストールして起動します。
www:~ #
zypper -n install mysql
www:~ #
vi /etc/my.cnf
# 12行目:追記

[mysqld]
character-set-server=utf8
www:~ #
/etc/init.d/mysql start

www:~ #
chkconfig mysql on

[2] MySQL の初期設定です。
www:~ #
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):
OK, successfully used password, moving on...

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

# root パスワードを設定

Set root password? [Y/n]
y

New password:
Re-enter new password:
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.
# 匿名ユーザーは削除

Remove anonymous users? [Y/n]
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.

# root のリモートログインは無効

Disallow root login remotely? [Y/n]
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.

# テストデータベースは削除

Remove test database and access to it? [Y/n]
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.

# 特権情報リロード

Reload privilege tables now? [Y/n]
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 root ユーザーで接続

www:~ #
mysql -u root -p

Enter password:    
# 設定したパスワードで認証

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.5.45 SUSE MySQL package

Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# ユーザー情報一覧表示

mysql>
select user,host,password from mysql.user;

+------+-----------+-------------------------------------------+
| user | host      | password                                  |
+------+-----------+-------------------------------------------+
| root | localhost | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
| root | 127.0.0.1 | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
| root | ::1       | *xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
+------+-----------+-------------------------------------------+
3 rows in set (0.00 sec)

# データベース一覧表示

mysql>
show databases;

+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)

mysql>
exit

Bye
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