MYSQL: GRANT ACCESS to DATABASE

GRANT ALL PRIVILEGES on db.* to 'username'@'applicationserverhost' IDENTIFIED BY 'password'

..

Install MySQL Server 5 on Ubuntu

Installing MySQL 5 Server on Ubuntu is a quick and easy process.
It almost feels like it should be more difficult.

Open a terminal window, and use the following command:

sudo apt-get install mysql-server

If you are running PHP you will also need to install the php module for mysql 5:

sudo apt-get install php5-mysql

To create a new database, use the mysqladmin command:

mysqladmin create [databasename]

See, really easy!

Source: http://www.howtogeek.com/howto/ubuntu/install-mysql-server-5-on-ubuntu/