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Oscar Foley
Asked: 2014-10-02 23:50:27 +0800 CST

How to access unreachable AWS instance?

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I have an AWS instance that suddenly I've lost access both by SSH and to the web server there.

I used to access by a public Elastic IP (54.76.201.91), so I know for sure that Security Groups are ok. Now that IP doesn't respond, ssh port is closed, also port 80.

If I press Get System Log I can see:

Get System Log capture

As I can see IP 169.254.169.254 I think there is a DHCP problem.

You can see full log here

What I have tried unsucessfully?

  • Reattach new Elastic IP
  • Connected by browser Java SSH Client
  • Create AMI (it worked) and start new instance with a new Elastic IP

So my question is

Is there any other way to connect?

ssh

1 Answers

  1. Best Answer

    Assuming this is EBS backed you can stop the instance, mount the EBS as a secondary volume on another functioning EC2 instance, fix whatever you need to fix then assign it back to a separate instance.

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