firewall rules

[margabs]

hello all,

since yesterday, I have an SSH issue. I am not able to connect to my instance.

I have this message:

I have changed nothing on firewall rules.

Can you help me?

Thanks in advance

[lawrencenelson]

Hi @margabs,

Please try following the steps provided in the official documentation, Failed to connect to backend:

The following errors might occur when you connect to your VM from the Google Cloud console or the gcloud CLI:

• The Google Cloud console:

  -- Connection via Cloud Identity-Aware Proxy Failed
  
  -- Code: 4003
  
  -- Reason: failed to connect to backend
  

• The gcloud CLI:

  ERROR: (gcloud.compute.start-iap-tunnel) Error while connecting [4003: 'failed to connect to backend'].
  

These errors occur when you try to use SSH to connect to a VM that doesn't have a public IP address and for which you haven't configured Identity-Aware Proxy on port 22.

To resolve this issue Create a firewall rule on port 22 that allows ingress traffic from Identity-Aware Proxy.

Please let me know if that was helpful. Thank you! 😃

[margabs]

Hi lawrencenelson ,

Thanks for your reply.

I have resolved this issue by stopping/starting the VM.
It is all fine now....