title: Cannot install Ruby's sass gem
body: <p>I am trying to install ruby' gem sass. I have run Ruby installation first and:
  gem install sass. But I am getting an error:</p>
  
  <p><strong>C:\Windows\system32>gem install sass
  ERROR:  Could not find a valid gem 'sass' (>= 0) in any repositor</strong>y</p>
  
  <p>Any idea what that might be?</p>
  
  <p>Thanks</p>
  
  <pre><code>Update.
  The connad: gem sources --add https://rubygems.org/ fails:
  C:\Windows\system32&gt;gem sources --add https://rubygems.org/
  Error fetching https://rubygems.org/:
  Errno::ETIMEDOUT: A connection attempt failed because the connected party 
  did not properly respond after a period of time, or established connection failed 
  because connected host has failed to respond. - connect(2) for "api.rubygems.org" 
  port 443 (https://api.rubygems.org/specs.4.8.gz)
  </code></pre>
  
  <p>It must be proxy setting that we use to access Internet. Is it possible to make Ruby to honor these settings?</p>
  
  <p>Update 2.</p>
  
  <pre><code>C:\Windows\system32&gt;gem sources --add http://rubygems.org/
  https://rubygems.org is recommended for security over http://rubygems.org/
  
  Do you want to add this insecure source? [yn]  y
  Error fetching http://rubygems.org/:
          Errno::ETIMEDOUT: A connection attempt failed because the connected part
  y did not properly respond after a period of time, or established connection fai
  led because connected host has failed to respond. - connect(2) for "api.rubygems
  .org" port 80 (http://api.rubygems.org/specs.4.8.gz)
  </code></pre>