reconfigure phpmyadmin

1. sudo dpkg-reconfigure phpmyadmin
2. Connection method for MySQL database for phpmyadmin: unix socket
3. Name of the database's administrative user: root
4. Password of the database's administrative user: mysqlsamplepassword
5. MySQL username for phpmyadmin: root
6. MySQL database name for phpmyadmin: phpmyadmin
7. Web server to reconfigure automatically: apache2
8. ERROR 1045
9. ignore
10. sudo dpkg-reconfigure mysql-server-5.5
11. New password for the MySQL "root" user: mysqlsamplepassword
12. Repeat password for the MySQL "root" user: mysqlsamplepassword
13. After all this run following command on terminal to secure your mysql server. sudo mysql_secure_installation
14. Enter current password for root (enter for none): mysqlsamplepassword
15. Change the root password? [Y/n] n
16. Remove anonymous users? [Y/n] y
17. Disallow root login remotely? [Y/n] y
18. Remove test database and access to it? [Y/n] y
19. Reload privilege tables now? [Y/n] y

Wish it helps!