Here's a very handy way to easily set up a system to register against katello or
headpin (or CFSE and SAM too!):
yum -y install
http://FQDNSAM/pub/candlepin-cert-consumer-FQDNSAM-1.0-1.noarch.rpm
Find out more in the Client Configuration section here
http://docs.redhat.com/docs/en-US/CloudForms/1.0/html/Release_Notes/chap-...