For Amazon Linux, the username is “ec2-user”, for ubuntu it is simply “ubuntu”. To connect to them you need the key file that was generated when the instance was created, and the public DNS address. Â Use a command like: ssh -i myinstance.pem ec2-user@12.34.56.789 Note: Make sure you have opened up ssh (port 22) access to… Continue reading Usernames for Amazon Linux (AWS) and Ubuntu AMI