3. Registering, Unregistering, and Reregistering a System

Software delivery, support, and other services for Red Hat products are managed through a subscription service. A subscription service, such as the Customer Portal or Subscription Asset Manager, tracks systems and the subscriptions attached to those systems.
A system is recognized to the subscription service by being registered with the service. A subscription is associated or attached to a system.
Systems can be registered with a subscription service during the firstboot process or as part of the kickstart setup (both described in the Installation Guide). Systems can also be registered after they have been configured or removed from the subscription service inventory (unregistered) if they will no longer be managed within that subscription system.

3.1. Registering from the GUI

  1. Launch Subscription Manager. For example:
    [root@server ~]# subscription-manager-gui
  2. If the system is not already registered, then there will be a Register button at the top of the window in the top right corner of the My Installed Products tab.
  3. To identify which subscription server to use for registration, enter the hostname of the service. The default service is Customer Portal Subscription Management, with the hostname subscription.rhn.redhat.com. If a different subscription service, such as Subscription Asset Manager, was configured in step 1, then the hostname of the on-premise server is in the field.
    There are seveal different subscription services which use and recognize certificate-based subscriptions, and a system can be registered with any of them in firstboot:
    • Customer Portal Subscription Management, hosted services from Red Hat (the default)
    • Subscription Asset Manager, an on-premise subscription server which proxies content delivery back to the Customer Portal's services
    • Satellite 6, an on-premise service which handles both subscription services and content delivery
  4. Enter the user credentials for the given subscription service to log in.
    The user credentials to use depend on the subscription service. When registering with the Customer Portal, use the Red Hat Network credentials for the administrator or company account.
    However, for Subscription Asset Manager, the user account to use is created within the on-premise service and probably is not the same as the Customer Portal user account.
  5. Optionally, select the Manually assign subscriptions after registration checkbox.
    By default, the registration process automatically attaches the best-matched subscription to the system. This can be turned off so that the subscriptions can be selected manually, as in Section 4, “Attaching and Removing Subscriptions”.
  6. When registration begins, Subscription Manager scans for organizations and environments (sub-domains within the organization) to which to register the system.
    IT environments that use Customer Portal Subscription Management have only a single organization, so no further configuration is necessary. IT infrastructures that use an on-premise subscription service like Subscription Asset Manager might have multiple organizations configured, and those organizations may have multiple environments configured within them.
    If multiple organizations are detected, Subscription Manager prompts to select the one to join.
  7. With the default setting, subscriptions are automatically selected and attached to the system. Review and confirm the subscriptions to attach to the system.
    1. If prompted, select the service level to use for the discovered subscriptions.
    2. Subscription Manager lists the selected subscription. This subscription selection must be confirmed by clicking the Attach button for the wizard to complete.