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MySQL インストール
2011/05/29
  データベースサーバーに MySQL をインストールします。
[root@www ~]#
yum -y install mysql-server
[root@www ~]#
/etc/rc.d/init.d/mysqld start

Starting mysqld (via systemctl):  Initializing MySQL database:  Installing MySQL system tables...
OK
Filling help tables...
OK

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:

/usr/bin/mysqladmin -u root password 'new-password'
/usr/bin/mysqladmin -u root -h www.srv.world password 'new-password'

Alternatively you can run:
/usr/bin/mysql_secure_installation

which will also give you the option of removing the test
databases and anonymous user created by default.  This is
strongly recommended for production servers.

See the manual for more instructions.

You can start the MySQL daemon with:
cd /usr ; /usr/bin/mysqld_safe &

You can test the MySQL daemon with mysql-test-run.pl
cd /usr/mysql-test ; perl mysql-test-run.pl

Please report any problems with the /usr/bin/mysqlbug script!

[  OK  ]

Starting mysqld:  [  OK  ]
[  OK  ]
[root@www ~]#
chkconfig mysqld on

[root@www ~]#
mysql -u root
# MySQLに接続

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.12 MySQL Community Server (GPL)

Copyright (c) 2000, 2010, 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.

# ユーザ情報表示

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

# rootパスワード設定

mysql>
set password for root@localhost=password('password');

Query OK, 0 rows affected (0.00 sec)
# rootパスワード設定

mysql>
set password for root@'127.0.0.1'=password('password');

Query OK, 0 rows affected (0.00 sec)
# rootパスワード設定

mysql>
set password for root@'www.srv.world'=password('password');

Query OK, 0 rows affected (0.00 sec)
mysql>
select user,host,password from mysql.user;

# IPV6ユーザ削除

mysql>
delete from mysql.user where user='root' and host='::1';

Query OK, 1 rows affected (0.00 sec)
# 匿名ユーザ削除

mysql>
delete from mysql.user where user='';

Query OK, 2 rows affected (0.00 sec)
mysql>
select user,host,password from mysql.user;

mysql>
exit
# 終了

Bye
[root@www ~]#
mysql -u root -p
# rootで接続

Enter password:
# 設定したパスワード入力

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.12 MySQL Community Server (GPL)

Copyright (c) 2000, 2010, 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.

mysql>
exit

Bye
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