Clear bad logins

As the root super user, login to the server using ssh and then login to the MySQL server as the root user: (In my case using a newer Linux distribution such as Fedora 21, MySQL has been replaced by the MariaDB MySQL FREE clone!)

~# mysql -p
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 935
Server version: 5.5.40-MariaDB MariaDB Server

Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others.

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

MariaDB [(none)]>

Switch to the database used for the Drupal installation, in my case, I named it drupal:

MariaDB [(none)]> use drupal;
Database changed
MariaDB [drupal]>