CloudShark Enterprise installation requires access to the "epel-release" repository managed by the Fedora project.
You can learn more about EPEL at its homepage.
Prior versions of CloudShark required access to the following outside locations. If you have upgraded to 3.9.x, you should remove any security exceptions you had in places for the following:
- lounge.cloudshark.org (retired)
- nginx.org (no longer using nginx repo)