CentOS 7 安装 Mysql 8.0 教程

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通用安装参考

(4条消息) CentOS 7 安装 Mysql 8.0 教程_danykk的博客-CSDN博客_centos安装mysql8.0

修复问题

Fix – MySQL ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
原因：账号密码安全等级的问题，可以修改安装登记，默认安装的账号安全等级是中等：即需要大小写，数字，符号的；
Fix - MySQL ERROR 1819 (HY000): Your password does not satisfy the current policy requirements - OSTechNix
irst we need to find the current password policy level. To do so, run the following command to show Password Validation Plugin system variables:

查看安全等级

mysql> SHOW VARIABLES LIKE 'validate_password%';
Sample output:

+--------------------------------------+--------+
| Variable_name | Value |
+--------------------------------------+--------+
| validate_password.check_user_name | ON |
| validate_password.dictionary_file | |
| validate_password.length | 8 |
| validate_password.mixed_case_count | 1 |
| validate_password.number_count | 1 |
| validate_password.policy | MEDIUM |
| validate_password.special_char_count | 1 |
+--------------------------------------+--------+
7 rows in set (0.09 sec)

修改安全等级

Change password validation policy
You can also solve the "ERROR 1819 (HY000)..." by setting up a lower level password policy.

To do so, run the following command from the mysql prompt:

mysql> SET GLOBAL validate_password.policy = 0;
Or,

mysql> SET GLOBAL validate_password.policy=LOW;

Now you can create a user with a weak password like below:

mysql> create user 'senthil'@'localhost' identified by 'password';

腾讯云服务器默认拦截3306的请求，需要腾讯云管理后台修改

Mysql 解决1251 client does not support ...问题

mysql客户端版本太低的问题
4、更改加密方式：

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER;
5、更改密码：该例子中 123为新密码

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123';
6、刷新：

mysql> FLUSH PRIVILEGES;
这步完成后我已经成功解决了问题。

参考：

Fix - MySQL ERROR 1819 (HY000): Your password does not satisfy the current policy requirements - OSTechNix

(4条消息) Navicat连接mysql8.0.1版本出现1251--Client does not support authentication protocol requested by server的解决_若水2018的博客-CSDN博客

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