1.登录mysql(注意:账号密码不包括,-u和-p)
mysql -uroot -proot
2.切换到mysql库:
use mysql;
3.查询root用户的host值:
select user,host from user;
如果host的值是localhost,说明只支持本地连接,不能远程登录。
4.更改host的值为%:
update user set host = '%' where user='root';
5.刷新权限:
flush privileges;
6.重启MySQL:
net stop mysql
net start mysql
7.即可外部连接mysql
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转自:mysql8解决null, message from server: “Host is not allowed to connect to this MySQL server“问题_进击的小陈的博客-CSDN博客