54 Chapter 5. Red Hat Network Registration ClientFigure 5-14. Registration Finished5.6. Entitling Your SystemNow that you have registered your system, it must be entitled before you can receive updated pack-ages. In other words, you must subscribe it to a service level offering. Everyone automatically receivesone free Demo entitlement after creating an account by registering a system for RHN or creating aredhat.com account.To entitle a system, go to http://rhn.redhat.com and log in using the same username and password youjust used in the Red Hat Network Registration Client. Click Systems on the top navigation bar andthen Systems Entitlements in the left navigation bar. The System Entitlements page displays thenumber of available entitlements, or subscriptions, at the bottom.If you have one or more subscriptions left, make a selection from the dropdown menu under theEntitlement column beside the name of the system you just registered. Only increases in entitlementlevels are allowed. Systems cannot be re-entitled to a lower entitlement level. For instance, a systementitled to the Update service level can be promoted to the Management level, but this action cannotbe reversed. Then click the Update Entitlements button at the bottom of the page.WarningChanging a system’s entitlement is an irreversible action. You may be unable to change the entitle-ment levels of some systems. For more information, refer to the RHN entitlement policy linked fromthe System Entitlements page.The number of entitlements remaining decreases, and your system becomes ready to use the Red HatUpdate Agent and RHN website. Refer to Chapter 2 Red Hat Update Agent and Chapter 6 Red HatNetwork Website for details on how to use them. If you do not have any entitlements left, click the Buymore system entitlements now link at the top of the System Entitlements page to make additionalpurchases.