- How do I configure my system so that up2date, yum, or satellite-sync can access RHN channels through a firewall or proxy?
- What URLs and ports do I need to configure in my proxy server to access RHN?
- Network error when registering a system with rhn_register or rhnreg_ks.
- When trying to update system with yum, receiving the error:
There was an error communicating with RHN. RHN channel support will be disabled. Error communicating with server. The message was: Unable to connect to the host and port specified