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:
复制代码
代码如下:
[[email protected] ~]#
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!