I have installed denyhosts from the ports to stop ssh attacks, but I have discovered a vulnerability, that is new to me. Denyhosts does not seem to notice FTP login attempts, so the cracker can attempt to login via FTP, 1000's of times until he finds a login/password combination. Once he has a login/password combo, he can simple login via ssh, (provided that user has a shell account). Is there anyway to block multiple FTP login attempts?
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