$ sudo mariadb -u root -p
CREATE DATABASE <db_name>;
DROP DATABASE <db_name>;
CREATE USER '<user>'@'<host_address>' IDENTIFIED BY '<password>';
GRANT ALL PRIVILEGES ON *.* TO '<user>'@'<host_address>' IDENTIFIED BY '<password>';
FLUSH PRIVILEGES;
exit;
$ sudo nano /etc/mysql/mariadb.conf.d/50-server.cnf
bind-address = 0.0.0.0