然后我们需要创建MySQL系统的启动键链接启动MySQL服务器，这样以便于MySQL在系统启动时自动启动

#chkconfig --levels 235 mysqld on

#/etc/init.d/mysqld start

 

为MySQL root帐户设置密码：

mysql_secure_installation

会出现下面的一系列提示：

 root@server1 ~]# 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.

 Set root password？ [Y/n]  //按确定设置mysql密码

 New password： //输入新密码

 Re-enter new password：  //确定新密码

 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] //按去确定，默认是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]   //按去确定，默认是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] //按去确定，默认是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] //按去确定，默认是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！

 [root@server1 ~]#

注：在centos安装mysql时无论是提示什么只需要按确定就行了，应为centos默认的是yes,当然在设置密码时需要输入你自己的密码。