An RHN proxy/mirror server can be created by means of
yum utility. The sample instructions can be found here:
- How to mirror RHN behind your firewall
- How To create a local mirror of latest Red Hat Enterprise Linux without using Satellite server
vzrhnproxy utility, formerly shipped with PVC distributive (for versions 3.x/4.0), has been dropped in favor of the native RHEL way of setting up a proxy/mirror server.