Solution Red Hat Subscription Manager
Register Red Hat Subscription
subscription-manager register --username admin-example --password secret subscription-manager register --username admin-example --password secret --auto-attach
Remove Red Hat Subscription
subscription-manager remove --all
Regenerating identity certificates
subscription-manager identity --regenerate --force
List all available repos for the system
subscription-manager repos --list subscription-manager repos --enable rhel-6-server-optional-rpms
Disabling the Subscription Manager repository
If you are on a Lab environment and you don't need the RedHat Subscription manager to maintain you packages it is possible to disable it. subscription-manager config --rhsm.manage_repos=0
Using an HTTP proxy
Many times we don't have direct access to the internet and the use of an Proxy server is necessary, to configure the RedHat Subscription Manager through a Proxy execute : subscription-manager config --server.proxy_hostname=proxy.certificationsnotes.com --server.proxy_port=8080 --server.proxy_user=username --server.proxy_password=secret_passwd Read the full article
