Install MySQL to configure Database Server

root@www:~# aptitude -y install mysql-server-5.5

# set MySQL's root password

  +--------------------+ Configuring mysql-server-5.5 +---------------------+
  | While not mandatory, it is highly recommended that you set a password   |
  | for the MySQL administrative "root" user.                               |
  |                                                                         |
  | If this field is left blank, the password will not be changed.          |
  |                                                                         |
  | New password for the MySQL "root" user:                                 |
  |                                                                         |
  | ************************************___________________________________ |
  |                                                                         |
  |                                 <Ok>                                    |
  |                                                                         |
  +-------------------------------------------------------------------------+

root@www:~# mysql -u root -p

# connect to MySQL

Enter password:

# MySQL root password

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 42
Server version: 5.5.30-1.1 (Debian)

Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

# show user info

mysql>  select user,host,password from mysql.user;

+------------------+-----------+-------------------------------------------+
| user             | host      | password                                  |
+------------------+-----------+-------------------------------------------+
| root             | localhost | *D1EEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| root             | www       | *D1EEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| root             | 127.0.0.1 | *D1EEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| root             | ::1       | *D1EEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
|                  | localhost |                                           |
|                  | www       |                                           |
| debian-sys-maint | localhost | *D1EEXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
+------------------+-----------+-------------------------------------------+
7 rows in set (0.00 sec)

# remove anonymous users

mysql> delete from mysql.user where user='';
Query OK, 2 rows affected (0.00 sec)

mysql> exit

Bye