Linux11.3 MySQL用户管理

　　创建用户

mysql> grant all on *.* to 'user1'@‘127.0.0.1’ identified by '123qwe';
Query OK, 0 rows affected (0.00 sec)

第一个*，表示库名，所有的库
第二个*，表示表，所有的表
@后面为该用户所登录的IP，%为所有IP
identified by 后面为密码

　　针对具体的权限授权

grant SELECT,UPDATE,INSERT on db1.* to 'user2'@'192.168.133.1' identified by '123qwe';

　　如果授权一个用户的IP需要修改，可以在不知道其密码情况下修改

mysql> grant SELECT,INSERT on db1.* to 'user2'@'192.168.212.130' identified by '123qwe';
Query OK, 0 rows affected (0.00 sec)

mysql> show grants for user2@'192.168.212.130';
+--------------------------------------------------------------------------------------------------------------------+
| Grants for user2@192.168.212.130                                                                                   |
+--------------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'user2'@'192.168.212.130' IDENTIFIED BY PASSWORD '*050376F3855A67F5E2C6514FD3130B31006C1276' |
| GRANT SELECT, INSERT ON `db1`.* TO 'user2'@'192.168.212.130'                                                       |
+--------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.00 sec)

mysql> GRANT USAGE ON *.* TO 'user2'@'192.168.212.130' IDENTIFIED BY PASSWORD '*050376F3855A67F5E2C6514FD3130B31006C1276';
Query OK, 0 rows affected (0.00 sec)

mysql>  GRANT SELECT, INSERT ON `db1`.* TO 'user2'@'192.168.212.131';
Query OK, 0 rows affected (0.00 sec)

　　查看用户权限

show grants; 默认ROOT用户

show grants for user2@192.168.133.1;