MariaDB 외부접속 허용

1. use mysql

2. insert into user(Host, User, Password) values(''%', 'root', password('[비번]');

3. grant all privileges on busapp.* to 'root'@'%' identified by '[비번]';

4. flush privileges;

* CentOS에서 3306포트 접근권한 풀기

1. sudo firewall-cmd -add-port=3306/tcp

2. sudo firewall-cnml --permanent -add-port=3306/tcp