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SSH Connection problem via Cloud Identity-Aware Proxy failed 4003

Posted on 08-04-2023 04:43 AM
SametSuzuki
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Reply posted on --/--/---- --:-- AM

Hiya guys, I created a VM yesterday until tomorrow today at morning I tried to access the SSH login and got an error saying:

 

Connection via Cloud Identity-Aware Proxy failed
Code: 4003 Reason: failed to connect to backend Please ensure that: - your user account has iap.tunnelInstances.accessViaIAP permission - VM has a firewall rule that allows TCP ingress traffic from the IP range 35.235.240.0/20, port: 22 – you can make a proper https connection to the IAP for TCP hostname: tunnel cloudproxy app You may be able to connect without using the Cloud Identity-Aware Proxy.
 
I tried to follow this FAQ of firewall rules and added port 22 and RDP 3389. Still not working.
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