MySQL is going to be the back end database for the server.  It’s a fairly good RDBMS (Relational database management system) there are several others to choose from, for my Needs MySql is the database that I’m going to use.

To install MySQL it really couldn’t be much simpler.

log into your linux, using the username and password that you setup with installing.

issue the command

SU
Then enter your root password.  This will give you SuperUser access.

now issue the command

apt-get install mysql-server mysql-client

you will be prompted to enter a password for the MySql root user. note: this is not the Operating Systems root user, the MySql root user will only be able to access the database in god mode.
After the files complete the copying process, you are done.  MySql is installed and running.