How to securely copy your SSH key file to a remote host for secure passwordless login on Ubuntu 15.10 wily.

On remote host

Enable passwords authentication in remote host:

/etc/ssh/sshd_config

service ssh restart

 

On local host

ssh-keygen -t rsa -b 4096

ssh-copy-id <username>@<host>

 

Then on remote host disable password authentication and restart ssh

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