You need to enable the SSH Server to be able to login remotely without password. In my configuration, I want to be able to shutdown EFW remotely.

1. run ssh-keygen on apollo
2. copy the id_rsa.pub file to a USB stick, then attach the stick to avernus (vm)
3. copy apollo's id_rsa.pub file to /root/.ssh/authorized_keys
4. in avernus' web interface, set Allow public key based authentication only in SSH access in Menu System