I you install MySql on Ubuntu, you might have faced issues connecting to the MySql server from another machine.

By default MySql is configured to listen only on localhost, it needs to be configured to listen on all adapters. To do so edit the /etc/mysql/my.cnf file, set the following value bind-address = 0.0.0.0 and bounce the server. It should be accessible now.

Also make sure to check your firewall config as well.