ruby:来自http.rb的ECONNREFUSED

Question

我正在尝试用Ruby解析rss提要。这是我的(工作)代码，以及实际的提要url：

include 'rss'

myfeed = RSS::Parser.parse('http://allmusicnews.altervista.org/blog/feed/', false)

如果我在我的开发计算机(MacOS10.9)上运行它，一切都可以正常工作。如果我在我的服务器(Debian 7)上运行它，我得到的结果是：

/home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/net/http.rb:879:in `initialize': Connection refused - connect(2) for "allmusicnews.altervista.org" port 80 (Errno::ECONNREFUSED)
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/net/http.rb:879:in `open'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/net/http.rb:879:in `block in connect'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/timeout.rb:74:in `timeout'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/net/http.rb:878:in `connect'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/net/http.rb:863:in `do_start'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/net/http.rb:852:in `start'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:318:in `open_http'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:736:in `buffer_open'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:211:in `block in open_loop'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:209:in `catch'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:209:in `open_loop'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:150:in `open_uri'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:716:in `open'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/open-uri.rb:724:in `read'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/rss/parser.rb:103:in `normalize_rss'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/rss/parser.rb:89:in `initialize'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/rss/parser.rb:76:in `new'
from /home/daniele/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/rss/parser.rb:76:in `parse'

其他rss提要不会发生这种情况。示例:Feeds.blogo.it/soundsblog/它似乎在两个平台上都工作得很好。

我使用的是相同的Ruby版本(2.2.0)，两台计算机上都安装了RVM。同样的宝石也是。

有什么线索吗，至少关于要找什么？

ps:这看起来可能与连接超时有关，但当我运行我的脚本时，突然看到上面的错误消息，没有空闲的等待时间...

Answer 1

请忽略我的问题。我射错了目标。

实际上，我担心我的生产机器会出现一些黑话问题。我无法以任何方式(lynx，telnet)连接到altervista.org服务器，我一直收到“连接被拒绝的错误”，所以这与我的Ruby代码无关……