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I'm trying to connect to my EC2 instance with terminal:

ssh -i server.cer ubuntu@ec2-**-**-***-**.us-west-2.compute.amazonaws.com

but have

The authenticity of host 'ec2----.us-west-2.compute.amazonaws.com (...)' can't be established.

ECDSA key fingerprint is SHA256:*************************.

Are you sure you want to continue connecting (yes/no/[fingerprint])?

Host key verification failed

I couldn't connect to it with EC2 Instance Connect (browser-based SSH connection), but can do this with Filezilla.

If this matters I've deleted known_hosts file and made a new one.

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    Did you try to answer "yes" to the question Are you sure you want to continue connecting (yes/no/[fingerprint])? ?
    – Soren A
    Commented Jan 21, 2020 at 12:37
  • @SorenA, yes, it solves, thanks. I've been pressing enter before Commented Jan 21, 2020 at 12:38
  • Great, please acknowledge my answer below then.
    – Soren A
    Commented Jan 21, 2020 at 12:41

1 Answer 1

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You will have to answer "yes" to the question Are you sure you want to continue connecting (yes/no/[fingerprint])? that ssh asks.

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