- Open a Terminal Window

Click on the Foot -> System tools -> Terminal



- Do the following rpms: 
    
rpm -i http://rhn.nacs.uci.edu/pub/rhns-ca-cert-1.0-1.noarch.rpm
    
rpm -e --nodeps  up2date up2date-gnome
    
rpm -ivh http://rhn.nacs.uci.edu/pub/up2date-4.3.14-1.i386.rpm
    
rpm -ivh http://rhn.nacs.uci.edu/pub/up2date-gnome-4.3.14-1.i386.rpm


- Edit /etc/sysconfig/rhn/up2date:
    Change sslCACert=/usr/share/rhn/RHNS-CA-CERT
    to     sslCACert=/usr/share/rhn/RHNS-CORP-CA-CERT

    Change serverURL=http://xmlrpc.rhn.redhat.com/XMLRPC
    to     serverURL=http://rhn.nacs.uci.edu/XMLRPC

    Change serverURL=https://xmlrpc.rhn.redhat.com/XMLRPC
    to     serverURL=https://rhn.nacs.uci.edu/XMLRPC
										    
- Run: service rhnsd restart

- Run: /usr/sbin/rhnreg_ks --activationkey=

- Run: up2date --nox --update --force (forces kernel update, which is normally skipped)

- Reboot