Glossary 113SSecurity AlertAn Errata Alert that pertains to system security.Service LevelA Red Hat Network subscription service. Different service levels offer different features of RHN.There are three paid service levels currently available: RHN Update, RHN Management, andRHN Provisioning.Software ManagerThe name of the first Service Level offering for Red Hat Network. Software Manager is nowknown as RHN Update .System DirectoryThe System Directory section of Red Hat Network allows an organization to divide its clientsystems into system groups. Only members of the Organization Administrator group can addsystems to the organization.System IDA unique string of characters and numbers that identifies a registered system. It is stored in thesystem’s Digital Certificate .System ProfileHardware and software information about the client system. It is created during the registrationprocess. The software information is a list of RPM packages and their versions installed on theclient system. The System Profile is used to determine every Errata Alert relevant to each clientsystem.System Set ManagerInterface that allows users to perform actions on multiple systems. Actions include applyingErrata Updates, upgrading packages, and adding/removing systems to/from system groups.UUpdateOne of the RHN service level offerings. Update was formerly called Basic. Update offers thesame services as the Basic subscription did, plus more new features.