mysql grant配置授权

发布时间：2020-03-04 09:22:32

来源：51CTO

阅读：644

作者：wx5be582d51c2c5

栏目：云计算

新建一个用户admin1对所有的库表完全权限，允许从任何地方访问，密码设为123456

Query OK, 0 rows affected, 1 warning (0.00 sec)

语法为

grant 权限列表 on 库名.表名 用户名@“用户地址” identified by " 密码" [ with grant opion ];

mysql> grant all on . to admin2@"%" identified by "123456" with grant option;

Query OK, 0 rows affected, 1 warning (0.00 sec)

all 匹配所有权限

. 匹配所有库和表

” %“ 匹配所有主机

授权用户admin3 允许对192.168.4.0/24网段访问

mysql> grant all on . to admin3@'192.168.4.0/24' identified by "123456" with grant option;

Query OK, 0 rows affected, 1 warning (0.00 sec)

对用户admin4在daydb4.user1仅有查询权限 登录密码为123456

mysql> grant select on daydb4.user1 to admin4@"localhost" identified by "123456" with grant option;

Query OK, 0 rows affected, 1 warning (0.00 sec)

授权admin5 允许本机访问，对daydb4任何表有查询 更改 插入 删除 权限 密码123456

mysql> grant select,update,delete,insert on daydb4.* to admin4@"localhost" identified by "123456" with grant option;

Query OK, 0 rows affected, 1 warning (0.01 sec)

用户查看自己的授权

mysql> show grants;

+---------------------------------------------------------------------+

| Grants for root@localhost |

+---------------------------------------------------------------------+

| GRANT ALL PRIVILEGES ON . TO 'root'@'localhost' WITH GRANT OPTION |

| GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION |

+---------------------------------------------------------------------+

2 rows in set (0.00 sec)

root 查看其他人用户的授权

show grant for 用户名@“客户端地址”;

mysql> show grants for admin4@"localhost" \g;

+----------------------------------------------------------------------------------------------+

| Grants for admin4@localhost |

+----------------------------------------------------------------------------------------------+

| GRANT USAGE ON . TO 'admin4'@'localhost' |

| GRANT SELECT, INSERT, UPDATE, DELETE ON daydb4.* TO 'admin4'@'localhost' WITH GRANT OPTION |

| GRANT SELECT ON daydb4.user1 TO 'admin4'@'localhost' WITH GRANT OPTION |

+----------------------------------------------------------------------------------------------+

3 rows in set (0.00 sec)

用户链接后修改密码

set password=password("新密码");

[root@MySQL50 ~]# mysql -uadmin4 -p654321

[root@MySQL50 ~]# mysql -uadmin4 -p654321

mysql: [Warning] Using a password on the command line interface can be insecure.

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 41

Server version: 5.7.17 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

mysql> set password=password("123456");

Query OK, 0 rows affected, 1 warning (0.00 sec)