Linux – Solve “Too many authentication failures for X” error

If you got the “Too many authentication failures for X” error on trying to connect to a server over ssh you can use the -o parameter to set the PubkeyAuthentication option to no.

ssh -o PubkeyAuthentication=no root@host

With that parameter your machine won’t try to send all your public keys any more on ssh connect.

As an alternative you can use the ssh-agent to get rid of this problem (don’t run it as sudo):

$> ssh-add -D

 Attention: This clears all identities!!!

To see how many identities you have, you can use:

$> ssh-add -l

Because most server only accept 5 tries, you have to delete some identities, if the shown list contains more than 5 entries.

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