Red Hat NETWORK - USER REFERENCE GUIDE 3.0 User Reference Manual page 75

Frequently Asked Questions
Errata Alert
RHN Errata Alert that updated packages based on Red Hat Errata are available for one or more
systems within an organization. There are three types of Errata Alerts: Security Alerts, Bug Fix
Alerts, and Enhancement Alerts.
R
Registered System
A system that is registered with Red Hat Network. Also known as a client system.
Red Hat Network Daemon
The RHN client daemon (rhnsd) that periodically polls Red Hat Network for updates and
notifications.
Red Hat Network Registration Client
The RHN client application (rhn_register) that collects information about the client sys-
tem, creates a System Profile and Digital Certificate , establishes a connection with the Red Hat
Network servers, and registers the system with Red Hat Network.
Red Hat Update Agent
The RHN client application (up2date) that allows users to retreive and install all updated
packages for the client system on which the application is run. Use the Red Hat Update Agent
Configuration Tool to configure its preferences, including whether to install the packages after
they are downloaded.
RPM
A software package manager that was developed by Red Hat. It can be used to build, install,
query, verify, update, and uninstall software packages. All software updates from RHN are
delivered in RPM format.
RPM Database
Each Red Hat Linux system has an RPM database that stores information about all the RPM
packages installed on the system. This information includes the version of the package, which
files were installed with the package, a brief description of the package, the installation date,
and more.
RPM Update
Red Hat Network option to deliver the RPM packages based on the Errata Alert list to a client
system automatically and without user intervention. If this feature is selected, packages are
delivered through the Red Hat Network Daemon running on the client system.
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