title: How to change Repository RHEL
body: <p>So, I'm trying to change my Repositorys in RHEL but I allways get the following message and have NO IDEA what it means.</p>
  
  <pre><code>Loaded plugins: product-id, security, subscription-manager
  This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
  Could not retrieve mirrorlist http://mirrors.elrepo.org/mirrors-elrepo.el6 error was
  12: Timeout on http://mirrors.elrepo.org/mirrors-elrepo.el6: (28, 'connect() timed out!')
  http://elrepo.org/linux/elrepo/el6/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://elrepo.org/linux/elrepo/el6/x86_64/repodata/repomd.xml: (28, 'connect() timed out!')
  Trying other mirror.
  http://mirrors.coreix.net/elrepo/elrepo/el6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 7 - "Failed to connect to 2a01:c0:2:3d::2: Network is unreachable"
  
  [...]
  
  Trying other mirror.
  http://mirror.ventraip.net.au/elrepo/elrepo/el6/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 7 - "Failed to connect to 2400:b800:1:1::15: Network is unreachable"
  Trying other mirror.
  Error: Cannot retrieve repository metadata (repomd.xml) for repository: elrepo. Please verify its path and try again
  </code></pre>