十年网站开发经验 + 多家企业客户 + 靠谱的建站团队
量身定制 + 运营维护+专业推广+无忧售后,网站问题一站解决
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)
另外有需要云服务器可以了解下创新互联cdcxhl.cn,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。