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mysql怎么删除匿名 怎么删除匿名

mysql5.7怎么修改secure-file-priv?

安装完mysql-server ,

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会提示可以运行mysql_secure_installation,运行mysql_secure_installation会执行几个设

置:

为root用户设置密码;

删除匿名账号;

取消root用户远程登录;

删除test库和对test库的访问权限;

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:

[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;

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。

mysql数据库安装过程为什么要删除匿名用户

不熟悉mysql,但是oracle,是必须建立用户后附权限才可以正常登陆的。跟oracle匿名用户scott一点关系没有。

如何消除MySQL账号的安全隐患

比如匿名账号容易带来安全隐患,建议删除,执行如下SQL语句即可删除权限表中所有的匿名账号:

mysqldelete from mysql.user where user='';

mysqldelete from mysql.db where user='';

mysqldelete from mysql.tables_priv where user='';

mysqldelete from mysql.columns_priv where user='';

mysqldelete from mysql.procs_priv where user='';

如何删除mysql匿名用户

因为在默认设置下,这个匿名用户在localhost上几乎拥有和root一样的权限。很可能因为访问者上传一个PHP文件,用这个PHP文件创建一个新用户,并给他一个较高的权限,然后用这个新用户连接到服务器的MySQL,对该服务器的MySQL进行管理。删除命令如下:


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