mysql下载后的初次使用MySQL安全配置向导mysql_secure_installation详解
安装完mysql-server 会提⽰可以运⾏mysql_secure_installation。运⾏mysql_secure_installation会执⾏⼏个设置：
a)为root⽤户设置密码
b)删除匿名账号
c)取消root⽤户远程登录
d)删除test库和对test库的访问权限
e)刷新授权表使修改⽣效
通过这⼏项的设置能够提⾼mysql库的安全。建议⽣产环境中mysql安装这完成后⼀定要运⾏⼀次mysql_secure_installation，详细步骤请参看下⾯的命令:
[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):<–初次运⾏直接回车
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] <– 是否设置root⽤户密码，输⼊y并回车或直接回车
New password: <– 设置root⽤户的密码
Re-enter new password: <– 再输⼊⼀次你设置的密码
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] <– 是否删除匿名⽤户,⽣产环境建议删除，所以直接回车
… 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] <–是否禁⽌root远程登录，根据⾃⼰的需求选择Y/n并回车，建议禁⽌
… 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] <– 是否删除test数据库，直接回车
- 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] <– 是否重新加载权限表，直接回车
… 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 ~]#

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