宝石-对等重置连接-SSL_connect

Question

我正在尝试在机器上安装Ruby on Rails。

每次我跑步：

 sudo gem install rails

终端返回

ERROR:  Could not find a valid gem 'rails' (>= 0), here is why:
      Unable to download data from https://rubygems.org/ -         
Errno::ECONNRESET: Connection reset by peer - SSL_connect 
(https://api.rubygems.org/specs.4.8.gz)

我该如何解决？