The RHN Update service is ideal for a user with one Red Hat Enterprise Linux system or a small number of Red Hat Enterprise Linux systems to keep updated. Subscription to Update can be purchased at http://rhn.redhat.com/purchase_info.pxt.
With each Update subscription, you receive the essential functionality provided to Demo users, plus:
Easy ISOs — For customers who have purchased subscriptions to Red Hat Network, ISO images are available for immediate download. Beat the rush to the FTP servers by downloading directly from Red Hat Network.
Priority Access during periods of high load — When Red Hat releases a large errata, users with Priority Access can be guaranteed that they will be able to access the updated packages immediately.
RHN Support Access — All paying customers of Red Hat Network receive web based support for their RHN questions.
Errata Notification, Multiple Systems — Subscriptions for multiple systems means Errata notification for Errata to all of those systems. Note that only one email is distributed per each Errata, regardless of the number of systems affected.
Errata Updates, Multiple Systems — Get quick updates for multiple systems with an easy button click for each system.