mysql远程连接问题

1，远程连接工具密码加密问题

解决Navicat for MySQL 连接 Mysql 8.0.11 出现1251- Client does not support authentication protocol 错误，如下更改密码加密方式，进入cmd

cd C:Program FilesMySQLMySQL Server 8.0in  //找到sql安装文件目录
mysql -u root -p ///打开mysql
ALTER USER 'root'@'localhost' IDENTIFIED BY '123456' PASSWORD EXPIRE NEVER;   //修改加密方式
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456'; //重置密码
FLUSH PRIVILEGES;  //刷线权限

2，远程连接账号权限

Navicat for MySQl访问远程mysql数据库，出现报错，显示“1130 - Host'xxx.xxx.xxx.xxx' is not allowed to connect to this MySQL server“。解决办法如下

use mysql;   //进入数据库
select host,user from user;  //查询表
update user set host = '%' where user = 'root';  //更改root权字段
flush privileges; //刷新权限