I'm having trouble trying to install screen on Red Hat Enterprise Linux Server 6.5.I have tried:sudo yum install screenAlso...sudo yum install screen.x86_64Running...sudo yum list screenyields...Error: No matching Packages to listRunning sudo yum repolist gave me this:Loaded plugins: product-id, refresh-packagekit, security, subscription-managerThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.Repository 'DVD' is missing name in configuration, using idrepo id                   repo name                                       statuspgdg93                    PostgreSQL 9.3 6Server - x86_64                   407rpmforge                  RHEL 6Server - RPMforge.net - dag               4,718rpmforge-extras           RHEL 6Server - RPMforge.net - extras              711repolist: 5,836When I run sudo subscription-manager list, I get:+-------------------------------------------+    Installed Product Status+-------------------------------------------+Product Name:   Red Hat Enterprise Linux ServerProduct ID:     69Version:        6.5Arch:           x86_64Status:         UnknownStatus Details:Starts:Ends:Any ideas on how to achieve this?
How do I install screen on RHEL6.5
software installation;yum
This means that you don't have a Red Hat subscription and are unable to get updates from Red Hat without one.See this answer on ServerFault for more details.If this is a licensed version of Red Hat, then this information on the Red Hat website shows you how to register your subscription.If this is a new server installation you may want to consider switching to CentOS, which is the community supported version of Red Hat Enterprise Linux, or Fedora Server.