Python 通过SSH连接到Docker时RemoteDisconnected（远程端关闭连接，无响应）

我的代码在本地网络上运行（使用VBOX），但当我尝试在另一个网络上运行它时，我收到以下错误：

docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))

我的代码是：

import docker
client = docker.DockerClient(base_url ='ssh://george@192.168.56.103')
print(client.images.list())

整个错误消息是：

C:\Users\George\PycharmProjects\docker_project\venv\Scripts\python.exe C:/Users/George/PycharmProjects/docker_project/docker_test.py
Traceback (most recent call last):
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 699, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 445, in _make_request
    six.raise_from(e, None)
  File "<string>", line 3, in raise_from
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 440, in _make_request
    httplib_response = conn.getresponse()
  File "C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py", line 1332, in getresponse
    response.begin()
  File "C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py", line 303, in begin
    version, status, reason = self._read_status()
  File "C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py", line 272, in _read_status
    raise RemoteDisconnected("Remote end closed connection without"
http.client.RemoteDisconnected: Remote end closed connection without response

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\requests\adapters.py", line 439, in send
    resp = conn.urlopen(
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 755, in urlopen
    retries = retries.increment(
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\util\retry.py", line 531, in increment
    raise six.reraise(type(error), error, _stacktrace)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\packages\six.py", line 734, in reraise
    raise value.with_traceback(tb)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 699, in urlopen
    httplib_response = self._make_request(
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 445, in _make_request
    six.raise_from(e, None)
  File "<string>", line 3, in raise_from
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\urllib3\connectionpool.py", line 440, in _make_request
    httplib_response = conn.getresponse()
  File "C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py", line 1332, in getresponse
    response.begin()
  File "C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py", line 303, in begin
    version, status, reason = self._read_status()
  File "C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py", line 272, in _read_status
    raise RemoteDisconnected("Remote end closed connection without"
urllib3.exceptions.ProtocolError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\api\client.py", line 214, in _retrieve_server_version
    return self.version(api_version=False)["ApiVersion"]
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\api\daemon.py", line 181, in version
    return self._result(self._get(url), json=True)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\utils\decorators.py", line 46, in inner
    return f(self, *args, **kwargs)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\api\client.py", line 237, in _get
    return self.get(url, **self._set_request_timeout(kwargs))
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\requests\sessions.py", line 555, in get
    return self.request('GET', url, **kwargs)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\requests\sessions.py", line 542, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\requests\sessions.py", line 655, in send
    r = adapter.send(request, **kwargs)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\requests\adapters.py", line 498, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:/Users/George/PycharmProjects/docker_project/docker_test.py", line 25, in <module>
    client = docker.DockerClient(base_url ='ssh://george@192.168.56.103')
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\client.py", line 45, in __init__
    self.api = APIClient(*args, **kwargs)
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\api\client.py", line 197, in __init__
    self._version = self._retrieve_server_version()
  File "C:\Users\George\PycharmProjects\docker_project\venv\lib\site-packages\docker\api\client.py", line 221, in _retrieve_server_version
    raise DockerException(
docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))

C:\Users\George\PycharmProjects\docker\u project\venv\Scripts\python.exe C:/Users/George/PycharmProjects/docker\u project/docker\u test.py
回溯（最近一次呼叫最后一次）：
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urlib3\connectionpool.py”，第699行，在urlopen中
httplib\u response=self.\u发出请求(
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urllib3\connectionpool.py”，第445行，在请求中
六、从（e，无）中提高
文件“”，第3行，从
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urllib3\connectionpool.py”，第440行，在请求中
httplib_response=conn.getresponse（）
文件“C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py”，第1332行，在getresponse中
response.begin（）
文件“C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py”，第303行，在begin中
版本、状态、原因=self.\u读取\u状态（）
文件“C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py”，第272行，处于读取状态
升起RemoteDisconnected（“远程端关闭连接，不带”
http.client.RemoteDisconnected:远程端关闭连接，无响应
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\requests\adapters.py”，第439行，在send中
resp=conn.urlopen(
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urlib3\connectionpool.py”，第755行，在urlopen中
重试次数=重试次数。增量(
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urlib3\util\retry.py”，第531行，增量
升起六个。重新升起（类型（错误），错误，_stacktrace）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urllib3\packages\six.py”，第734行，在reraise中
通过_回溯（tb）提升值
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urlib3\connectionpool.py”，第699行，在urlopen中
httplib\u response=self.\u发出请求(
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urllib3\connectionpool.py”，第445行，在请求中
六、从（e，无）中提高
文件“”，第3行，从
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\urllib3\connectionpool.py”，第440行，在请求中
httplib_response=conn.getresponse（）
文件“C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py”，第1332行，在getresponse中
response.begin（）
文件“C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py”，第303行，在begin中
版本、状态、原因=self.\u读取\u状态（）
文件“C:\Users\George\AppData\Local\Programs\Python\Python38-32\lib\http\client.py”，第272行，处于读取状态
升起RemoteDisconnected（“远程端关闭连接，不带”
urllib3.exceptions.ProtocolError:（'Connection aborted'，RemoteDisconnected（'Remote end closed Connection With response'））
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\api\client.py”，第214行，在服务器版本中
返回self.version（api_version=False）[“ApiVersion”]
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\api\daemon.py”，第181行，版本
返回self.\u结果（self.\u get（url），json=True）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\utils\decorators.py”，第46行，在内部
返回f（自，*args，**kwargs）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\api\client.py”，第237行，在
返回self.get（url，**self.\u set\u request\u timeout（kwargs））
get中的文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\requests\sessions.py”，第555行
返回self.request（'GET'，url，**kwargs）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\requests\sessions.py”，第542行，在请求中
resp=自我发送（准备，**发送）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\requests\sessions.py”，第655行，在send中
r=适配器.send（请求，**kwargs）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\requests\adapters.py”，第498行，在send中
raise CONNECTIONERR（错误，请求=请求）
requests.exceptions.ConnectionError:（“连接中止”）、RemoteDisconnected（“远程端关闭连接，无响应”））
在处理上述异常期间，发生了另一个异常：
回溯（最近一次呼叫最后一次）：
文件“C:/Users/George/PycharmProjects/docker_project/docker_test.py”，第25行，在
client=docker.DockerClient（base\u url=）ssh://george@192.168.56.103')
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\client.py”，第45行，在\uu init中__
self.api=APIClient（*args，**kwargs）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\api\client.py”，第197行，在u init中__
self.\u version=self.\u检索\u服务器\u版本（）
文件“C:\Users\George\PycharmProjects\docker\u project\venv\lib\site packages\docker\api\client.py”，第221行，在服务器版本中
提高警觉(
docker.errors.DockerException:获取服务器API版本时出错：（'Connection aborted'，RemoteDisconnected（'Remote end closed Connection With response'））

原因可能是什么？

client = docker.from_env()