Ubuntu or Debian, in content to MariaDB database.
For other OS need to check right path location.
Once you edit file, you can search
bind-address = 127.0.0.1
and replace it with
bind-address = 0.0.0.0
Once change done, restart mysql
service mysql restart
As restart completed, you can follow below statement to create new remote user.
Login to mysql via mysql command than fire below SQL statements
CREATE USER ‘dmo’@’%’ IDENTIFIED BY ‘mypass’;
after create new user, grand permission
GRANT ALL ON *.* TO ‘dmo’@’%’;
Once above command fired, below command very necessary to reflect changes.
Once above flush done, its all affect in system wide and new remote user able to login.