I would like to disable passwords in sshd
and use just keys.
root@igla:~# cat /etc/debian_version
8.0
root@igla:~# uname -a
Linux igla.gotdns.ch 4.1.19+ #858 Tue Mar 15 15:52:03 GMT 2016 armv6l GNU/Linux
root@igla:~#
How do I do it with my Raspberry Pi?