By default MariaDB only allows localhost connection,To allow remote access to MariaDB…
sudo nano /etc/mysql/my.cnf
comment out bind-address
sudo service mysql restart
login mariaDB as root user
~$ mysql -uroot -pYourMariaDBrootPassword
grant privileges
MariaDB [(none)]>GRANT ALL PRIVILEGES ON . TO ‘root’@‘%’ IDENTIFIED BY ‘YourMariaDBrootPassword’ WITH GRANT OPTION;
in mysqlbench login as root