I just installed Ruby 2.1 using the instructions for OSX:
https://github.com/postmodern/chruby/wiki/Ruby
Everything is working fine, and I installed some stones without any problems.
However, when installing rails using:
$ sudo gem install rails -V
Installation fails with error:
ERROR: when executing gem ... (Gem :: RemoteFetcher :: UnknownHostError) there is no such name ( https://api.rubygems.org/quick/Marshal.4.8/atomic-1.1.4-java.gemspec.rz )
I can grab the file from this URL using curl or pasting it into the address bar, so it seems like the file exists.
Why does the installation not work?
I am not a proxy and do not use a flag --no-http-proxy.
Before the error, about 100 other files were uploaded:
HEAD https://api.rubygems.org/latest_specs.4.8.gz
302 Moved Temporarily
HEAD https://s3.amazonaws.com/production.s3.rubygems.org/latest_specs.4.8.gz
304 Not Modified
GET https://api.rubygems.org/quick/Marshal.4.8/rails-4.0.2.gemspec.rz
302 Moved Temporarily
GET https://aws-eu-cache01.rubygems.org/quick/Marshal.4.8/rails-4.0.2.gemspec.rz
200 OK
HEAD https://api.rubygems.org/specs.4.8.gz
302 Moved Temporarily
HEAD https://s3.amazonaws.com/production.s3.rubygems.org/specs.4.8.gz
304 Not Modified
GET https://api.rubygems.org/quick/Marshal.4.8/railties-4.0.2.gemspec.rz
302 Moved Temporarily
GET https://aws-eu-cache01.rubygems.org/quick/Marshal.4.8/railties-4.0.2.gemspec.rz
... etc.