Sometimes you need to do actions as root to configure things for your AMI. SSH login user Firstly login as as the regular user for your AMI instance. Username: ubuntu or Username: centos No password is used. You should connect to your instance using the public IP address and your public key ssh -i mykey.pem ubuntu@public-ip or ssh -i mykey.pem centos@public-ip Becoming a super user There is no root login … Continue reading Doing things as root