拒絕連接RubyGems

Question

我正在嘗試安裝寶石gem install micromidi。每當我從終端運行它，我收到此錯誤：

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) 

我不是在代理後面，我有互聯網連接。我以前安裝過寶石，並且從未遇到過問題。怎麼了，我該如何解決這個問題？

Answer 1

還有的是關於SSL和提「快速度」提交的最近的一些合併，該搜索回購的，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

我推薦手動更新到RubyGems的v2.6.6 - 2016年6月22日，通過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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資源

如果上述不能解決問題，這裏有一些額外的資源：

• [Comcast ISP]問題：https://github.com/rubygems/rubygems/issues/1001
• [OS X]有用的堆棧溢出問題："gem install rails" fails with DNS error
• [視窗] 上紅寶石解決方法RubyGems的SSL錯誤的Windows（RubyInstaller），通過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 .