title: Requests lib works in Window and times out in Linux
body: <p>I have a simple python script to make a POST operation using requests lib. In windows, it works fine with no problem. In <strong>Linux</strong>, it's <strong>not</strong> working <strong><em>even though I can ping</em></strong>. The script gives me in Linux:</p>
  
  <pre><code>Traceback (most recent call last):
    File "temp.py", line 55, in &lt;module&gt;
      r = requests.post(urlPOST, json=payLoad, auth=('admin', 'pass'), verify=False)
    File "/opt/ute/python/lib/python2.7/site-packages/requests/api.py", line 109, in post
      return request('post', url, data=data, json=json, **kwargs)
    File "/opt/ute/python/lib/python2.7/site-packages/requests/api.py", line 50, in request
      response = session.request(method=method, url=url, **kwargs)
    File "/opt/ute/python/lib/python2.7/site-packages/requests/sessions.py", line 465, in request
      resp = self.send(prep, **send_kwargs)
    File "/opt/ute/python/lib/python2.7/site-packages/requests/sessions.py", line 573, in send
      r = adapter.send(request, **kwargs)
    File "/opt/ute/python/lib/python2.7/site-packages/requests/adapters.py", line 415, in send
      raise ConnectionError(err, request=request)
  requests.exceptions.ConnectionError: ('Connection aborted.', error(110, 'Connection timed out'))
  </code></pre>
  
  <p>Again, <strong><em>I can ping</em></strong> the site <em>with no problems</em> in Linux. </p>
  
  <p><strong><em>Questions:</em></strong> <strong>1- What my be wrong?</strong>
  <strong>2- Is there another way to check connection rather than ping?</strong> I mean if it was a proxy problem, then I wouldn't be able to ping as well, right?</p>