Error downloading files from repository (.zip, .tar.gz, .tar.bz2, etc)
There are errors while downloading files from both "ftp" and "cache" repositories
(http://ftp.ruby-lang.org/pub/ruby/2.1/ and http://cache.ruby-lang.org/pub/ruby/2.1/),
the connection is closed from server side when there are few kB to complete download.
I got this error using different download tools (wget, curl, Firefox "Download" feature, and Firefox "DownThemAll" plugin).
That is happening for different files (.zip, .tar.gz, .tar.bz2, etc) from repositories above.