Linux, API, Python, ufw

pytanie zadane 21 maja 2022 w Systemy operacyjne, programy przez thesolitaryofchoice Początkujący (490 p.)

Cześć,
Korzystam z Kubuntu 21.04 i ufw. Chwilowo Internet pobieram po kablu usb z tabletu. Jako przenośny modem. Tablet pobiera Internet przez wi-fi. Mam pytanie, bo chciałem sobie napisać jakieś proste API w Pythonie np. pogodowe. Tylko, że nawet jak dodam regułę allow dla danego portu. To i tak mi pokazuje, że port jest przeciążony. Ktoś wie coś w czym rzecz, czy może słabo opisałem temat? z góry dziękuję za wszelką pomoc.

komentarz 21 maja 2022 przez j23 Mędrzec (194,920 p.)

Może podaj pełną treść błędu.

komentarz 21 maja 2022 przez thesolitaryofchoice Początkujący (490 p.)

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 159, in _new_conn
    conn = connection.create_connection(
  File "/usr/lib/python3/dist-packages/urllib3/util/connection.py", line 84, in create_connection
    raise err
  File "/usr/lib/python3/dist-packages/urllib3/util/connection.py", line 74, 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 "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 665, in urlopen
    httplib_response = self._make_request(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 387, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/lib/python3.8/http/client.py", line 1256, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/lib/python3.8/http/client.py", line 1302, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.8/http/client.py", line 1251, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.8/http/client.py", line 1011, in _send_output
    self.send(msg)
  File "/usr/lib/python3.8/http/client.py", line 951, in send
    self.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 187, in connect
    conn = self._new_conn()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 171, in _new_conn
    raise NewConnectionError(
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7fca5be6a580>: 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 "/usr/lib/python3/dist-packages/requests/adapters.py", line 439, in send
    resp = conn.urlopen(
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 719, in urlopen
    retries = retries.increment(
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 436, in increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=8822): Max retries exceeded with url: /helloworld (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fca5be6a580>: 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/mateusz/Project/VSC_Project/python_code/flask/test.py", line 6, in <module>
    response = requests.get(BASE + "/helloworld")
  File "/usr/lib/python3/dist-packages/requests/api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 533, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 646, in send
    r = adapter.send(request, **kwargs)
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=8822): Max retries exceeded with url: /helloworld (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fca5be6a580>: Failed to establish a new connection: [Errno 111] Connection refused'))

Podejrzewam, że winne jest pobieranie Internetu po wi-fi kablem z tabletu na komputer.

komentarz 21 maja 2022 przez thesolitaryofchoice Początkujący (490 p.)

Nie wiem może jeszcze, coś z kodem:

import requests

BASE = 'http://127.0.0.1:8822'

try:
    response = requests.get(BASE + "/helloworld")
except ConnectionError as e:
    print(e)

print(response.json())

komentarz 22 maja 2022 przez thesolitaryofchoice Początkujący (490 p.)

Dodam jeszcze, że np. dziś przeinstalowałem system na Linux Mint 5 LMDE, no i niestety musi to, być problem z tym połączeniem, bo np. nie widzi żadnych urządzeń w Warpinatorze.