SSH to Amazon EC2 instance using Putty in windows

Question

I am a newbie to Amazon web services, was trying to launch an Amazon instance and ssh to it using putty from windows. These are the steps I followed,

• Created a key pair.
• Created a security group with the rule for SSH and HTTP.
• Launched an instance of EC2 using the above key pair and security group.
• Using puttygen converted the *.pem file to *.ppk
• Using putty tried connecting to the public DNS of the instance and provided the *.ppk file.

I logged in using 'root' and 'ec2-user', and created the ppk file using SSH1 and SSH2, for all these attempts I get the following error in putty,

"Server refused our key"

Can you guys please help, any suggestions would be greatly appreciated.

Answer 1

Use ubuntu as the username. AWS has changed the username from ec2-user to ubuntu long back. So this should work!

If this doesn't work make sure that:

• your port number is 22
• you are using your public IP address rather than the DNS.