SSH
SSH certificiate authentication
Referenced from https://allthingscloud.eu/2020/01/05/ssh-certificate-based-authentication-a-quick-guide/ as of 2021-10-28
- https://smallstep.com/docs/tutorials/ssh-certificate-login
- https://smallstep.com/blog/use-ssh-certificates/
Certificate Authority (CA) Server Create HOST CA signing keys
$ ssh-keygen -t rsa -N '' -C HOST-CA -b 4096 -f host-ca