SSH - Authenticity of the host can't be established

After following the guide for setting up SSH and connecting to Start9, I got the above message along with: ED25519 key fingerprint is sha256: xxxxxxx. This key is not known by any other name. Are you sure you want to continue?

Is this something that needs to be fixed? Did I make an error setting it up? I am out of my element. I don’t know much beyond building a computer. This has been the first hiccup thus far, though.


No – ssh keys are not signed by certificate authorities, so they’re all untrusted until you manually mark them as trusted. That’s what ssh is asking – do you want to trust the key?

Say yes, or you won’t be able to connect.

I will add the warning and a blurb to the guide.