title: Python requests [Errno 111] Connection refused when running on server, but not on local PC
body: <p>I have a web scraper script which runs fine on my (Windows) PC, but I'm trying to get it to run from a (Linux) web server. I have a number of other scripts which run fine on the server (connecting to different websites than this one), but when I run this script, I get a <code>[Errno 111] Connection refused</code> error.</p>
  
  <p>Here is a minimal version of the script to demonstrate the problem:</p>
  
  <pre><code>import time
  import requests
  import urllib.request
  from bs4 import BeautifulSoup
  
  s = requests.Session()
  
  target = "http://taxsearch.co.grayson.tx.us:8443/"
  headers = {"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
             "Accept-Encoding": "gzip, deflate",
             "Accept-Language": "en",
             "Cache-Control": "no-cache",
             "Connection": "keep-alive",
             "Host": "taxsearch.co.grayson.tx.us:8443",
             "Pragma": "no-cache",
             "Upgrade-Insecure-Requests": "1",
             "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36"
  }
  
  
  time.sleep(1)
  response = s.get(target, headers=headers)
  
  if response.status_code == requests.codes.ok:
      results = BeautifulSoup(response.text, 'html.parser')
  
      # Do something with output
  else:
      response.raise_for_status()
  </code></pre>
  
  <p>This runs fine on my PC, but when running on the server, I get the following error:</p>
  
  <pre><code>Traceback (most recent call last):
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/connection.py", line 159, in _new_conn
      (self._dns_host, self.port), self.timeout, **extra_kw)
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/util/connection.py", line 80, in create_connection
      raise err
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/util/connection.py", line 70, in create_connection
      sock.connect(sa)
  ConnectionRefusedError: [Errno 111] Connection refused
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
      chunked=chunked)
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 354, in _make_request
      conn.request(method, url, **httplib_request_kw)
    File "/opt/alt/python36/lib64/python3.6/http/client.py", line 1239, in request
      self._send_request(method, url, body, headers, encode_chunked)
    File "/opt/alt/python36/lib64/python3.6/http/client.py", line 1285, in _send_request
      self.endheaders(body, encode_chunked=encode_chunked)
    File "/opt/alt/python36/lib64/python3.6/http/client.py", line 1234, in endheaders
      self._send_output(message_body, encode_chunked=encode_chunked)
    File "/opt/alt/python36/lib64/python3.6/http/client.py", line 1026, in _send_output
      self.send(msg)
    File "/opt/alt/python36/lib64/python3.6/http/client.py", line 964, in send
      self.connect()
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/connection.py", line 181, in connect
      conn = self._new_conn()
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/connection.py", line 168, in _new_conn
      self, "Failed to establish a new connection: %s" % e)
  urllib3.exceptions.NewConnectionError: &lt;urllib3.connection.HTTPConnection object at 0x2af700598c18&gt;: Failed to establish a new connection: [Errno 111] Connection refused
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/requests/adapters.py", line 449, in send
      timeout=timeout
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/connectionpool.py", line 638, in urlopen
      _stacktrace=sys.exc_info()[2])
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/urllib3/util/retry.py", line 398, in increment
      raise MaxRetryError(_pool, url, error or ResponseError(cause))
  urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='taxsearch.co.grayson.tx.us', port=8443): Max retries exceeded with url: / (Caused by NewConnectionError('&lt;urllib3.connection.HTTPConnection object at 0x2af700598c18&gt;: Failed to establish a new connection: [Errno 111] Connection refused',))
  
  During handling of the above exception, another exception occurred:
  
  Traceback (most recent call last):
    File "../python/grayson-2year.py", line 22, in &lt;module&gt;
      response = s.get(target, headers=headers)
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/requests/sessions.py", line 546, in get
      return self.request('GET', url, **kwargs)
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
      resp = self.send(prep, **send_kwargs)
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
      r = adapter.send(request, **kwargs)
    File "/home/jken/virtualenv/web-scraper/3.6/lib/python3.6/site-packages/requests/adapters.py", line 516, in send
      raise ConnectionError(e, request=request)
  requests.exceptions.ConnectionError: HTTPConnectionPool(host='taxsearch.co.grayson.tx.us', port=8443): Max retries exceeded with url: / (Caused by NewConnectionError('&lt;urllib3.connection.HTTPConnection object at 0x2af700598c18&gt;: Failed to establish a new connection: [Errno 111] Connection refused',))
  </code></pre>
  
  <p>My guess would be that the issue here is down to some firewall issue on the webserver or something, but I'm really not sure. Is there something I'm missing?</p>