2008年7月18日金曜日

CentOS5.2にMySQL5をインストール

バージョンはMySQL5.0.45です。
yum install mysql mysql-server mysql-devel php-mysql
起動
mysqld_safe &
または
/etc/init.d/mysqld start
この時エラーが起きる人は(mysql.hostが無いとか)、一旦yumからmysqlを消し、さらに/usr/bin/mysqlなどが残っていないか調べ、それも消してから再度インストールするとうまく行くようです。ここではまったw 設定
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): #mysql rootのパスワードを入力
#何も設定していなければそのまま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 Y=はい n=いいえ Enter!
New password: #mysql rootユーザのパスワードを設定

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.

#匿名ユーザの削除
Remove anonymous users? [Y/n] Y
ormally, root should only be allowed to connect from 'localhost'.  This
ensures that someone cannot guess at the root password from the network.

#リモートからrootでログインできなくする(通常rootはlocalhostからだけ)
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.

#testデータベースの削除
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.

#privilege(特権?)テーブルの最読み込み
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!

#インストール完了!
実際に使ってみる
mysql -u root -p 
#rootのパスワードを入力
後はユーザの追加とかですね。そのままrootで使うのは避けましょう!

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