Metadata - ssh keys
- If you don't have one yet, create an shh key on your computer
- Compute Engine - Metadata - SSH Keys - Edit
- Paste the public key there
- Try to ssh to the instance from a regular SSH client.
alias xscp='scp -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' alias xssh='ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no'