I've seen somewere in up2date or rhn configs that there are both "http" and "https" (or "secure" and "non-secure") options, maybe you can try telling rhn to use the http protocol? I haven't found how to tell rhn to do this, but I guess it can be done.
Ori Idan wrote:
RHN uses port 443 (https).I ran nmap on the server and it reports that port 443 is open so this is not the problem.
What else might cause rhn_register not to work?
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