What ports need to be open for RHN Proxy if I wish to protect it with a firewall?

Updated -

The up2date clients behind a firewall are configured to communicate via either http or https, so you would need to open internally port 80 and 443 for the up2date clients to connect to the RHN Proxy server. The RHN Proxy will then make outgoing connections to xmlrpc.rhn.redhat.com - so you would need to allow outgoing port 80 and 443 access from the RHN Proxy server t...

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