How can I set a proxy server for gem?

Question

I am unable to install SASS through command prompt.

I tried below steps

c:\\gem install sass

I am getting below error:

Answer 1

None of the answers here actually helped my case (proxy + password), instead I found a solution on a Github issue:

https://github.com/rubygems/rubygems/issues/1068

Basically I had to set three variables:

set http_proxy=proxy_ip:port
set http_proxy_user=user
set http_proxy_pass=password