Load key myfirstkey ppk invalid format ec2-user 13 235 67 73 Permission denied publickey gssapi-keyex gssapi-with-mic

Question

Hi Guys

I am trying to do ssh in my AWS instance. But I am getting this error.

C:\Users\Akhtar\Downloads>ssh -l ec2-user 13.235.67.73 -i myfirstkey.ppk
The authenticity of host '13.235.67.73 (13.235.67.73)' can't be established.
ECDSA key fingerprint is SHA256:HtO4bkrMd+bieuGVGZ9SKAFxQn4lGQU270cs0hUQjpU.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '13.235.67.73' (ECDSA) to the list of known hosts.
Load key "myfirstkey.ppk": invalid format
ec2-user@13.235.67.73: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

Can anyone tell me why I am getting this error?

Answer 1

Hi@akhtar,

You are trying to do SSH with .ppk key. But .ppk key is used to login using putty. If you want to do SSH from command line, you have to use .pem key.