nodejs连接远程mysql常见问题

Error: connect ETIMEDOUT

应该是mariadb默认只允许本地连接，修改 /etc/mysql/mariadb.conf.d/50-server.cnf 文件

然后将 bind-address 127.0.0.1 改成 0.0.0.0 然后重启mysql

Error: ER_HOST_NOT_PRIVILEGED: Host ‘xxx’ is not allowed to connect to this MariaDB server

这种是你登录的用户只允许本地连接

USE mysql;
SELECT user,host FROM user;

// 这样可以看到你的用户和权限，把localhost改成你的ip或者改成 % 允许所有ip登录

GRANT ALL PRIVILEGES ON *.* TO username@'%' IDENTIFIED BY 'passwd' WITH GRANT OPTION;

上面该权限的代码要注意 用户名 不用加单引号，%要加，密码要加

参见 Configuring database connection results in Error: Host ‘xxxxxxx’ is not allowed to connect to this MySQL server – Atlassian Documentation