failing to ssh into ec2 instance

Question

I was following these ec2 setup instructions and when I get to the end where I need to use

ssh -i path/to/myapp.pem ubuntu@XXX.compute.amazonaws.com

I get the following error

$ ssh -i ~/keys/scriptishsitekey.pem ec2-blah.compute-1.amazonaws.com
The authenticity of host 'ec2-blah.compute-1.amazonaws.com (1.2.3.4)' can't     be established.
RSA key fingerprint is ..
Are you sure you want to continue connecting (yes/no)? yes 
Warning: Permanently added 'ec2-blah.compute-1.amazonaws.com,1.2.3.4' (RSA) to the list of known hosts.
Permission denied (publickey).

where I've hidden some of the details there, but the info I used should be correct, any idea what could be the problem?

Answer 1

Try to use ec2-user instead of ubuntu.

Your command would then be:

ssh -i path/to/myapp.pem ec2-user@XXX.compute.amazonaws.com