The following hardware configuration is required for the RHN Proxy Server:
Pentium III processor, 1.26GHz, 512K cache or equivalent
512 MB of memory
3 GB storage for base install of Red Hat Enterprise Linux AS
6 GB storage per distribution/channel
The load on the Apache HTTP Server is directly related to the frequency with which client systems connect to the Proxy. If you reduce the default interval of four hours (or 240 minutes) as set in the /etc/sysconfig/rhn/rhnsd configuration file of the client systems, you will increase the load on this component significantly.