You should never be brute forced....
I would take steps to secure your own boxes. To protect against brute force on a server level, if you're running *nix... I recommend R-fx Network's free:
http://www.rfxn.com/projects/
APF (Advanced Policy Firewall)
BFD (Brute Force Detection)
Installs in minutes with good install files to help you get it done
Anyone with basic *nix skills can do this in a matter of minutes.