在mysql用户管理中主要讲述到了关于mysql用户增加,删除,设置密码,删除及权限的设置,各位有需要了解的朋友不防进入参考.
添加用户:本机访问权限:
- mysql> GRANT ALL PRIVILEGES ON *.* TO 'username
-
- '@'localhost'
- -> IDENTIFIED BY 'password' WITH GRANT OPTION;
远程访问权限:
- mysql> GRANT ALL PRIVILEGES ON *.* TO 'username'@'%'
-
- -> IDENTIFIED BY 'password' WITH GRANT OPTION;
另外还有一种方法是直接Insert INTO user,注意这种方法之后需要 FLUSH PRIVILEGES 让服务器重读授权表,删除用户.
DROP USER user;限制用户资源
- mysql> GRANT ALL ON customer.* TO 'francis'@'localhost'
- -> IDENTIFIED BY 'frank'
- -> WITH MAX_QUERIES_PER_HOUR 20
- -> MAX_UPDATES_PER_HOUR 10
- -> MAX_CONNECTIONS_PER_HOUR 5
- -> MAX_USER_CONNECTIONS 2;
设置用户密码:
命令行:shell> mysqladmin -u user_name -h host_name password "newpwd"或执行语句:mysql> SET PASSWORD FOR 'username'@'%'= PASSWORD('password');
如果只是更改自己的密码,则直接:mysql> SET PASSWORD = PASSWORD(‘password’);
在全局级别使用GRANT USAGE语句(在*.*)来指定某个账户的密码:mysql> GRANT USAGE ON *.* TO 'username'@'%'
IDENTIFIED BY 'password';
或直接修改MySQL库表:
- mysql> UPDATE user SET Password = PASSWORD('bagel')
-
- -> WHERE Host = '%' AND User = 'francis';
-
- mysql> FLUSH PRIVILEGES;
关于加密:
- mysql> select PASSWORD('password');
- +
- | PASSWORD('password') |
- +
- | *2470C0C06DEE42FD1618BB99005ADCA2EC9D1E19 |
- +
- 1 row in set (0.00 sec)
- mysql> select MD5('hello');
- +
- | MD5('hello') |
- +
- | 5d41402abc4b2a76b9719d911017c592 |
- +
- 1 row in set (0.00 sec)
- mysql> select SHA1('abc');
- -> 'a9993e364706816aba3e25717850c26c9cd0d89d'
SHA1()是为字符串算出一个 SHA1 160比特检查和,如RFC 3174,安全散列算法,中所述. |