Linux+Apache+MySQL+PHP5的安装配置

5、安装MySQL

检查是否安装mysql，使用YUM 自动安装：

[root@server ~]# rpm –qa |grep mysql

[root@server ~]# yum -y install mysql mysql-server  #是否要安装，输入Y即可自动安装,直到安装完成

启动MySQL

[root@server ~]# service mysqld start

[确定]

正在启动 mysqld： [确定]

设为开机启动

[root@server ~]# chkconfig mysqld on

[root@server ~]# cp /etc/my.cnf /etc/my.cnfbak

[root@server ~]# cp /usr/share/mysql/my-medium.cnf /etc/my.cnf

cp：是否覆盖"/etc/my.cnf"？ y   #拷贝配置文件（注意：如果/etc目录下面默认有一个my.cnf，直接覆盖即可）

为root账户设置密码

[root@server ~]# 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):   #按回车键

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      #输入y

New password:               #输入新密码

Re-enter new password:        #重输入新密码

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    #输入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    #输入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    #输入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    #输入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!    #最后出现：Thanks for using MySQL!

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