Question

我正在尝试撤销给定用户的权限，比如mysqluser1。我以root身份revoke all privileges, grant option for mysqluser1@localhost;尝试，然后我flush privileges。当我检查授权时，我发现mysquser1仍然拥有特权。我究竟做错了什么？

以下是有问题的摘录：

mysql> show grants for mysqluser1@localhost;
+---------------------------------------------------------------------------------------------------------------------+
| Grants for mysqluser1@localhost                                                                                   |
+---------------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'mysqluser1'@'localhost' IDENTIFIED BY PASSWORD '*ALPHANUMSTRINGHERE' |
+---------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> revoke all privileges, grant option from mysqluser1@localhost;
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> show grants for mysqluser1@localhost;
+---------------------------------------------------------------------------------------------------------------------+
| Grants for mysqluser1@localhost                                                                                   |
+---------------------------------------------------------------------------------------------------------------------+
| GRANT USAGE ON *.* TO 'mysqluser1'@'localhost' IDENTIFIED BY PASSWORD '*ALPHANUMSTRINGHERE' |
+---------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql>

Answer 1

@spencer更快，但我也会问，如果你想要摆脱所有特权，那你为什么需要用户？

要完全删除用户帐户，请使用DELETE。从MySQL 4.1.1开始，您还可以使用DROP USER删除用户

Answer 2

USAGE权限说明符代表＆＃34;没有权限。＆＃34;它在GRANT的全局级别用于修改帐户属性，例如资源限制或SSL特性，而不会影响现有帐户权限。

http://dev.mysql.com/doc/refman/5.5/en/privileges-provided.html

撤销所有权限，授予选项无效？

2 个答案: