The Red Hat Network Registration Client helps you connect your system so that you can begin to get updates and perform systems management. There are three ways to connect:
During the Setup Agent — Check the Send hardware information and Send system package list options when prompted.
After the Setup Agent has been completed — From Applications (the main menu on the panel), go to System Tools, then select Package Updater.
After the Setup Agent has been completed — Run rhn_register from the command line as the root user.