一、首先要mysql授权

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)

mysql>FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

说明:【想要root用户使用密码123456从任何主机连接到mysql服务器】

mysql> select host,user from user;
+-------------------------+------+
| host                    | user |
+-------------------------+------+
| %                       | root |
| 127.0.0.1               | root |
| iz2ze3hkpeilimy9kn68tvz |      |
| iz2ze3hkpeilimy9kn68tvz | root |
| localhost               |      |
| localhost               | root |
+-------------------------+------+
6 rows in set (0.00 sec)

说明:【修改权限后查询user表】

二、Navicat远程连接阿里云ECS数据库

1、首先常规设置

2、进行SSH设置

SSH密码就是你连接服务器密码