Hmm, for me has necessary one more thing:
Find this:
Change for this:
Change YOURSERVERIP for the your server IP. Save and quit:
Restart the MySQL:
Remember: the port 3306 needs to be open at firewall.
Code:
sudo vim /etc/mysql/my.cnf
Code:
bind-address=127.0.0.1
Code:
bind-address=YOURSERVERIP
Code:
:x
Code:
sudo service mysql restart