Unable to access rabbitmq management website via guest/guest as rabbitmq hosted on ec2

reference: https://geekforum.wordpress.com/2014/05/02/install-run-and-configure-rabbitmq-on-aws-ec2/

#add admin user for RabbitMQ
sudo rabbitmqctl add_user admin admin

#Set pemission for admin user
sudo rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"

#make admin as user administrator
sudo rabbitmqctl set_user_tags admin administrator

Use admin for login now