1、更改密码限制级别(可跳过)
2、创建远程连接用户
3、修改密码加密方式
4、验证连接
注:以上基于 端口3306已开,mysql 8.0正确安装
1、更改密码限制级别
查询有关密码验证相关参数,
其中length为密码长度,
policy密码检查等级(
0/LOW:只检查长度,
1/MEDIUM:长度、数字、大小写、特殊字符,
扫描二维码关注公众号,回复: 3893635 查看本文章2/STRONG:长度、数字、大小写、特殊字符字典文件
)
mysql> show variables Like 'valida%';
+--------------------------------------+-------+
| 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 (0.00 sec)
修改
mysql> set global validate_password.policy=0;
Query OK, 0 rows affected (0.03 sec)
mysql> set global validate_password.length=4;
Query OK, 0 rows affected (0.01 sec)
修改过后的限制
mysql> show variables Like 'valida%';
+--------------------------------------+-------+
| Variable_name | Value |
+--------------------------------------+-------+
| validate_password.check_user_name | ON |
| validate_password.dictionary_file | |
| validate_password.length | 4 |
| validate_password.mixed_case_count | 1 |
| validate_password.number_count | 1 |
| validate_password.policy | LOW |
| validate_password.special_char_count | 1 |
+--------------------------------------+-------+
7 rows in set (0.00 sec)
2、创建远程连接用户
create user '用户名'@'远程主机ip' identified by '密码';
grant all on *.* to 'denr'@'192.168.1.1';//授权给IP为192.168.1.1的机器用denr用户登录
mysql> create user 'denr'@'192.168.1.1' identified by 'denr';
Query OK, 0 rows affected (0.13 sec)
mysql> grant all on *.* to 'denr'@'192.168.1.1';
Query OK, 0 rows affected (0.02 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
3、修改密码加密方式
alter user '用户名'@'IP地址' identified with mysql_native_password by'密码';
mysql> alter user 'denr'@'192.168.1.1' identified with mysql_native_password by'denr';
Query OK, 0 rows affected (0.12 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
4、验证连接