As documented:
http://rhl.redhat.com/projects/additional-projects/kudzu/
[paul@uruk src]$ export
CVSROOT=:pserver:anonymous@rhlinux.redhat.com:/usr/local/CVS
[paul@uruk src]$ cvs -z3 login
Logging in to :pserver:anonymous@rhlinux.redhat.com:2401/usr/local/CVS
CVS password:
cvs [login aborted]: connect to rhlinux.redhat.com(66.187.233.241):2401
failed:
Connection timed out
I assume this just isn't setup yet.
Paul