firewall rules

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

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! :smiley:

Hi lawrencenelson ,

Thanks for your reply.

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