Cannot SSH to google cloud Linux machine

Question

When i attempt to SSH from https://console.cloud.google.com/compute/instances?authuser=0&projec

I get the error:

Connection via Cloud Identity-Aware Proxy Failed

Code: 4010

Reason: destination read failed

Please ensure you can make a proper https connection to the IAP for TCP hostname: https://tunnel.cloudproxy.app You may be able to connect without using the Cloud Identity-Aware Proxy.

Though on a seperate machine i am able to login, but Firewall and other settings seem identical ?

What should i do to get in ?

Krgds.

C

Answer 1

This issue is due to the lack of a firewall rule to allow-ingress-from-iap with this IP range 35.235.240.0/20 that needs to be configured when using IAP (Identity-Aware Proxy).

To Allow SSH access to all VM instances in your network, do the following:

1- Open the Firewall Rules page (Navigation menu > VPC network > Firewall) and click Create firewall rule

2- Configure the following settings:

• Name: allow-ingress-from-iap
• Direction of traffic: Ingress
• Target: All instances in the network
• Source filter: IP ranges
• Source IP ranges: 35.235.240.0/20
• Protocols and ports: Select TCP and enter 22 to allow SSH

3- Click Create

Answer 2

My impression is that the root casuse, was the the linux box had run out of hard disk space, causing the issues.

So when i recreated the same machine, with more disk space, the issue was resolved.