拒绝连接RubyGems

Question

我正在尝试安装宝石gem install micromidi。每当我从终端运行它，我收到此错误：

ERROR: Could not find a valid gem 'micromidi' (>= 0), here is why: 
      Unable to download data from https://rubygems.org/ - Errno::ECONNREFUSED: Connection refused - connect(2) for "rubygems.global.ssl.fastly.net" port 443 (https://api.rubygems.org/latest_specs.4.8.gz) 

我不是在代理后面，我有互联网连接。我以前安装过宝石，并且从未遇到过问题。怎么了，我该如何解决这个问题？

Answer 1

还有的是关于SSL和提“快速度”提交的最近的一些合并，该搜索回购的，如：https://github.com/rubygems/rubygems/search?o=desc&q=fastly&s=created&type=Issues

此外，2.6.3/2016-04-05 […] New fastly cert. Pull request #1548 by David Radcliffe看到：https://github.com/rubygems/rubygems/blob/ccb9c3300c063f5b5656669972d24a10ef8afbf5/History.txt#L63

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ANSWER

我推荐手动更新到RubyGems的v2.6.6 - 2016年6月22日，通过https://rubygems.org/pages/download：

If you don't have any RubyGems installed, there is still the pre-gem approach to getting software, doing it manually:

1. Download from above
2. Unpack into a directory and cd there
3. Install with: ruby setup.rb (you may need admin/root privilege)

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资源

如果上述不能解决问题，这里有一些额外的资源：

• [Comcast ISP]问题：https://github.com/rubygems/rubygems/issues/1001
• [OS X]有用的堆栈溢出问题："gem install rails" fails with DNS error
• [视窗] 上红宝石解决方法RubyGems的SSL错误的Windows（RubyInstaller），通过https://gist.github.com/luislavena/f064211759ee0f806c88#manual-solution-to-ssl-issue：

Step 1: Obtain the new trust certificate

[…]

We need to download AddTrustExternalCARoot-2048.pem[ https://raw.githubusercontent.com/rubygems/rubygems/master/lib/rubygems/ssl_certs/AddTrustExternalCARoot-2048.pem ]

Use the above link and place/save this file somewhere you can later find easily (eg. your Desktop).

IMPORTANT: File must have .pem as extension. Browsers like Chrome will try to save it as plain text file. Ensure you change the filename to have .pem in it after you have downloaded it.

Step 2: Locate RubyGems certificate directory in your installation

In order for us copy this file, we need to know where to put it.

Depending on where you installed Ruby, the directory will be different.

Take for example the default installation of Ruby 2.1.5, placed in C:\Ruby21

Open a Command Prompt and type in:

C:\>gem which ruby gems 
C:/Ruby21/lib/ruby/2.1.0/rubygems.rb 

Now, let's locate that directory. From within the same window, enter the path part up to the file extension, but using backslashes instead:

C:\>start C:\Ruby21\lib\ruby\2.1.0\rubygems 

This will open a Explorer window inside the directory we indicated.

Step 3: Copy new trust certificate

Now, locate ssl_certs directory and copy the .pem file we obtained from previous step inside.

It will be listed with other files like GeoTrustGlobalCA.pem .