Resolve problems with authorized_keys permissions

Sometimes I had problems to connect to a server via public key authentication. In most cases I could solve them by setting up the right permissions for the file and path of the authorized_keys file. This can be done as shown below: $> chmod 700 $HOME/.ssh $> chmod 600 $HOME/.ssh/authorized_keys $> chmod go-w $HOME $HOME/.ssh […]

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. […]