Quote:
To brute-force my root account 506938 times they will need 253469 IP's cause they get permanently banned after 2 failed login attempts, but even if they did, my password is over 30 randomly generated characters long including upper + lower case letters, numbers, symbols and brackets.
This kind of paranoid security can be used against you in a pretty effective denial-of-service. If someone wants to lock you out of your machine, failing two logins can do it.