Too many authentication failures

If at connecting an error is displayed via SSH "Too many authentication failures", this means that there are more than three failed authentication attempts. The reason may be that the SSH client iterates over and offers the server all the SSH keys available to it, thereby exhausting all authentication attempts.

To fix the situation, try adding the argument to the connection command -o IdentitiesOnly=yeswhich will indicate ssh use only identification data specified in the command line or in the configuration file ssh:

ssh -o IdentitiesOnly=yes example@example.ftp.tools