debian - Google Cloud Platform: ssh from VM_1 in project_A to VM_2 in project_B -

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i trying connect virtual machine vm_1 in project_a virtual machine vm_2 in project_b. bot on debian linux.

steps did:

on vm_1 project_a

generated private , public keys

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

in browser, metadata page of project_b.

  1. clicked ssh keys show list of project-wide public ssh keys , added public keys created vm_1 project_a

now keys added tried ssh virtual machine vm_1 on project_a vm_2 on project_b

it giving error

permission denied (publickey)

please advise

it seems bug can not apply public key particular vm in project. able connect applying public ssh key whole project.


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