ssh-keygen -t dsa -f $HOME/.ssh/id_dsa -P '' cat $HOME/.ssh/id_dsa.pub | ssh <USER>@<HOSTNAME> "cat >> <USERHOME>/.ssh/authorized_keys" or/and cat $HOME/.ssh/id_dsa.pub | ssh <USER>@<HOSTNAME> "cat >> <USERHOME>/.ssh/authorized_keys2"