When performing any installation or update on a Red Hat server, I am getting this error:
Loaded plugins: rhnplugin, security
There was an error communicating with RHN.
Red Hat Satellite or RHN Classic support will be disabled.
Error Message:
Please run rhn_register as root on this client
Error Class Code: 9
Error Class Info: Invalid System Credentials.
Explanation:
An error has occurred while processing your request. If this problem
persists please enter a bug report at bugzilla.redhat.com.
If you choose to submit the bug report, please be sure to include
details of what you were trying to do when this error occurred and
details on how to reproduce this problem.
http://apt.sw.be/redhat/el5/en/x86_64/dag/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-2, 'Name or service not known')>
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: dag. Please verify its path and try again