Mysql Setup

Make sure you have all the following lines need to uncomment somewhere in your apache2.conf (or in your conf.d/php.ini) file:

#extension=php_mysql.so

So this becomes

extension=php_mysql.so

The configuration file of mysql is located at: /etc/mysql/my.cnf

By default mysql creates user as root and runs with no password. To change Root Password

mysql> USE mysql;
mysql> UPDATE user SET Password=PASSWORD('new-password') WHERE user='root';
mysql> FLUSH PRIVILEGES;

To Create User

To access the mySQL database from PHP script, you must never use the root password, you need to create a user for that purpose. Alternatively you can add users to mysql database by using a control panel like phpMyAdmin to easily create or assign database permission to users.

To access the web interface type the following in you web browser and enter:

http://ipaddress/phpmyadmin/

When it prompts for username and password enter the database root as username and enter the password (By default there is no password for database root user)

Sources:

http://www.mysql-apache-php.com

http://httpd.apache.org/docs/1.3/misc/security_tips.html

http://www.debianhelp.co.uk/webserver.htm