使用Python向外部计算机打开套接字
我正在使用以下代码在我的计算机上打开套接字。当我在计算机上访问 my_ip:5000 时，程序会做出响应。但是，当我使用另一台计算机时，什么也没有发生。
HOST = 'my_ip' # Symbolic name meaning the local host
PORT = 8000 # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr
while 1:
data = conn.recv(1024)
if not data: break
conn.send(data)
conn.close()
我不确定这是否是防火墙的问题。当我使用 manage.py runserver my_ip:8000 在 django 中启动测试服务器时，我可以从另一台计算机连接到该计算机。我不确定是什么导致我无法使用上面的代码从另一台计算机连接......
I am using the following code to open a socket on my computer. When I go to my_ip:5000 on my computer the program responds. However, when I use another computer, nothing happens.
HOST = 'my_ip' # Symbolic name meaning the local host
PORT = 8000 # Arbitrary non-privileged port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr
while 1:
data = conn.recv(1024)
if not data: break
conn.send(data)
conn.close()
I'm not sure if this is an issue with the firewall or not. When I start up the test server in django using manage.py runserver my_ip:8000 I am able to connect to the machine from a different computer. I'm not sure what is causing me not to be able to connect from another computer using the code above...
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通过将 HOST 设置为
'my_ip'，您可以监听仅解析到您的计算机的私有 IP。最著名的示例是127.0.0.1。相反，传递一个空字符串 (HOST='') 来侦听来自指定端口的任何请求。确保两台计算机上使用相同的端口号，即 5000 或 8000。另外，检查计算机之间（或其中一台计算机上安装的）是否阻止连接。
要测试您的计算机原则上是否可达，请在服务器上没有私有信息的目录中运行 python -m SimpleHTTPServer 并尝试从客户端访问以此启动的 Web 服务器。
By setting HOST to
'my_ip', you may listen to a private IP that only resolves to your computer for your computer. The best-known example is127.0.0.1. Instead, pass an empty string (HOST='') to listen to any requests coming in at the specified port. Make sure to use the same port number, i.e. either 5000 or 8000, on both machines.Also, check whether a firewall between the computers (or installed on one of them) prevents the connection.
To test whether your computer is reachable in principle, run
python -m SimpleHTTPServerin a directory without private information on the server and try to reach the webserver started with that from the client.该代码看起来是正确的，因此您的问题出在其他地方（可能是“my_ip”的防火墙问题或 dns 问题）。
The code looks to be correct, so your problem lies elsewhere (perhaps a firewall issue or dns problem for "my_ip").