时间:2021-07-01 10:21:17 帮助过:7人阅读
* 角色的概念管理数据库访问权限。 根据角色自身的设置不同,一个角色可以看做是一个数据库用户,或者一组数据库用户。 角色可以拥有数据库对象(比如,表)以及可以把这些对象上的权限赋予其它角色, 以控制谁拥有访问哪些对象的权限。另外,我们也可以把一个角色的成员 (membership)权限赋予其它角色,这样就允许成员角色使用它被赋予成员权限的角色之权限。
* MySQL 5.7开始利用 ‘proxy‘ 代理实现类似 ‘rols‘ 角色管理功能。
2. 环境
* MySQL Server
- Server version: 5.7.18 MySQL Community Server (GPL)
- Copyright (c) 2000, 2017, 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> select version();
- +-----------+
- | version() |
- +-----------+
- | 5.7.18 |
- +-----------+
- 1 row in set (0.00 sec)
3. 实现
* 启用代理用户映射
- mysql> SET @@global.check_proxy_users = ON;
- Query OK, 0 rows affected (0.00 sec)
- mysql> SET @@global.mysql_native_password_proxy_users = ON;
- Query OK, 0 rows affected (0.00 sec)
* 创建角色(rols) 用户
- mysql> create user ‘rols_it‘@‘127.0.0.1‘;
- Query OK, 0 rows affected (0.01 sec)
* 创建普通用户tom
- mysql> create user ‘tom‘@‘127.0.0.1‘ identified by ‘123456‘;
- Query OK, 0 rows affected (0.00 sec)
* 通过proxy方式添加tom用户到角色
- mysql> grant proxy on ‘rols_it‘@‘127.0.0.1‘ to ‘tom‘@‘127.0.0.1‘;
- Query OK, 0 rows affected (0.00 sec)
4. 测试
* 创建测试数据库 it
- mysql> create database it;
- Query OK, 1 row affected (0.00 sec)
* 给角色 (rols) 添加数据库 it 的查看权限
- mysql> grant select ON it.* TO ‘rols_it‘@‘127.0.0.1‘;
- Query OK, 0 rows affected (0.00 sec)
* 查看角色权限
- mysql> show grants for ‘rols_it‘@‘127.0.0.1‘;
- +-------------------------------------------------+
- | Grants for rols_it@127.0.0.1 |
- +-------------------------------------------------+
- | GRANT USAGE ON *.* TO ‘rols_it‘@‘127.0.0.1‘ |
- | GRANT SELECT ON `it`.* TO ‘rols_it‘@‘127.0.0.1‘ |
- +-------------------------------------------------+
- 2 rows in set (0.01 sec)
* 查看tom用户权限
- mysql> show grants for ‘tom‘@‘127.0.0.1‘;
- +-----------------------------------------------------------+
- | Grants for tom@127.0.0.1 |
- +-----------------------------------------------------------+
- | GRANT USAGE ON *.* TO ‘tom‘@‘127.0.0.1‘ |
- | GRANT PROXY ON ‘rols_it‘@‘127.0.0.1‘ TO ‘tom‘@‘127.0.0.1‘ |
- +-----------------------------------------------------------+
- 2 rows in set (0.00 sec)
* 通过tom用户登陆连接MySQL
- [root@MySQL mysql_data]# mysql -utom -p123456 -h127.0.0.1
- 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 14
- Server version: 5.7.18-log MySQL Community Server (GPL)
- Copyright (c) 2000, 2017, 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> show databases;
- +--------------------+
- | Database |
- +--------------------+
- | information_schema |
- | it |
- +--------------------+
- 2 rows in set (0.00 sec)
5. 总结
以需求驱动技术,技术本身没有优略之分,只有业务之分。
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MySQL5.7--------proxy实现rols管理
标签:mysql dba 角色管理