I get several of these messages in event viewer on our SQL Server. They happen every second sometimes. Is someone trying to hack our server? I am using Windows 2003 Server.
Login failed for user 'root'. Reason: Could not find a login matching the name provided. [CLIENT: x.x.x.x]
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp
The event ID is 18456