34.2.4. Using Certificate-based Red Hat Network (Recommended)
The recommended process for new Red Hat Enterprise Linux systems is to register with the Red Hat Subscription Service. Even if a system is not registered at firstboot, it can be registered with the Red Hat Subscription Service later using the Red Hat Subscription Manager tools.
34.2.4.1. Entitlement Platform Registration
The login screen requires the information to connect to the Subscription Service. The configuration options are:
a username and password to log into Red Hat Subscription Service; this account must already exist in the Customer Service Portal.
an identifier (usually the hostname or fully qualified domain name) of the machine in order to register the machine to the subscription service.
a checkbox to set whether to automatically subscribe the machine to any matching and available subscriptions. Leave the checkbox unchecked if you plan to subscribe the machine to products manually.
the name of the organization (group) within the Subscription Service to join the system to. This is only used in a multi-organization environment.
When you submit the user credentials, the Subscription Manager automatically scans for any organizations configured for that customer account.
IT environments that use Red Hat's hosted service have only a single organization, so no further configuration is necessary. IT environments that use a local subscription service like Subscription Asset Manager might have multiple organizations configured. If any organizations are detected, Subscription Manager prompts you to select the one to join. Multi-organization environments are described in the Red Hat Enterprise Linux 6 Deployment Guide.
If you do not register the system to the Red Hat Subscription Service during the firstboot process, you can use the Red Hat Subscription Manager GUI or its command-line equivalent, subscription-manager register, to register the system later.
