Chapter 4. Red Hat Network Website 55• Misc — Links to update System Profiles and preferences for the system set:• System Profile Updates — Clicking Update Hardware Profile, then the Confirm Refreshbutton schedules a hardware profile update. Clicking Update Package Profile, then the ConfirmRefresh button schedules a package profile update.• Reboot Systems — Selecting the appropriate systems and then clicking the Reboot Systemslink sets those systems for reboot. To immediately cancel this action, click the list of systemslink that appears within the confirmation message at the top of the page, select the systems, andclick Unschedule Action.• Lock Systems — Selecting the appropriate systems and then clicking the Lock Systems linkprevents the scheduling of any action through RHN that would affect the systems. This can bereversed by clicking the Unlock Systems link.• Delete Systems — Clicking Delete System Profiles, then the Confirm Deletions button removesthe selected profiles permanently.• Upgrade System Entitlements — Clicking Upgrade to * Entitlement increases the servicelevel for as many selected systems as possible.• System Preferences — Toggling the Yes and No radio buttons and then clicking the ChangePreferences button alters your notification preferences for the selected systems. All of thesepreferences may also be applied to systems individually through the Properties subtab of theSystem Details page. Refer to Section 4.4.2.6 System Details for instructions.• Receive Notifications of Updates/Errata — This setting keeps you abreast of all advisoriespertaining to your systems. Anytime an update is produced and released for a system underyour supervision, a notification is sent via email.• Include system in Daily Summary — This setting includes the selected systems in a dailysummary of system events. (By default, all Management systems are included in the summary.)These are actions affecting packages, such as scheduled Errata Updates, and system rebootsor failures to check in. In addition to including the systems here, you must choose to receiveemail notifications in the Your Preferences page of the Your RHN category. Refer to Section4.3.2 Your Preferences for instructions. Note that RHN will send these summaries only toverified email addresses.• Automatic application of relevant errata — This setting allows you have all Errata Updatesautomatically applied to systems. This means packages associated with Errata will be updatedwithout any user intervention. Customers should note that Red Hat does not recommend theuse of the auto-update feature for production systems because conflicts between packages andenvironments can cause system failures. The Red Hat Network Daemon must be enabled onthe systems for this feature to work.4.4.5. System EntitlementsTo use all of the features of RHN, your systems must be entitled — subscribed to an RHN servicelevel. Use the System Entitlements page to configure which systems are entitled to which serviceofferings. There are three primary types of entitlements:• Update — should be used to manage a single Red Hat Linux system. It includes Errata Alerts,Scheduled Errata Updates, Package Installation, and the Red Hat Update Agent.• Management — should be used to manage multiple systems with multiple system administrators.In addition to the features of the Update offering, it includes system group management, user man-agement, and the System Set Manager interface to quickly perform actions on multiple systems.