Getting http://apache.mirror.rbftpnetworks.com/deltacloud/stable/deltacloud-core-1.1.3.gem to ./deltacloud-core-1.1.3.gem
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0curl: (6) Could not resolve host: apache.mirror.rbftpnetworks.com