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I am trying to connect virtual machine VM_1 in project_A to virtual machine VM_2 in project_B. Bot are on Debian Linux.

Steps I did:

On VM_1 Project_A

Generated private and public keys

ssh-keygen -t rsa -f ~/.ssh/my-ssh-key -C example-user $ chmod 400 ~/.ssh/my-ssh-key

In a browser, Metadata page of project_B. Clicked SSH Keys to show a list of project-wide public SSH keys and added public keys that I created from VM_1 Project_A Now the keys are added I tried ssh from virtual machine VM_1 on Project_A to Vm_2 on Project_B

it is giving below error

Permission denied (publickey)

Please advise

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It seems a bug that I can not apply public key to a particular VM in a project. I was able to connect it by applying public ssh key to whole project.

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  • There are Google Daemons running on the instance responsible for propagating the user accounts and ssh keys from metadata to the instance. With that said, have you added the ssh-keys to the instance metadata they will not be propagated to other instances in the same project. You can refer to this link for more information on how to setup ssh for GCE instance. Commented Apr 21, 2016 at 18:01

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