Question

I wrote a simple python script using the SocketServer, it works well on Windows, but when I execute it on a remote Linux machine(Ubuntu), it doesn’t work at all..
The script is like below:

#-*-coding:utf-8-*- 
import SocketServer

class MyHandler(SocketServer.BaseRequestHandler):

    def handle(self):
        data_rcv = self.request.recv(1024).strip()
        print data_rcv

myServer = SocketServer.ThreadingTCPServer(('127.0.0.1', 7777), MyHandler)   
myServer.serve_forever()

I upload it to the remote machine by SSH, and then run the command python server.py on the remote machine, and try to access to xxx.xxx.xxx.xxx:7777/test with my browser, but nothing is printed on the remote machine’s teminal…any ideas?

UPDATE: Problem solved, it’s a firewall issue, thanks you all.

Answer 1

You are binding the server to 127.0.0.1, the IP address for localhost. This means the server will only accept connections originating from the same machine; it won’t recognize ones coming from another machine.

You need to either bind to your external IP address, or bind to a wildcard address (i.e. don’t bind to any particular IP address, just a port). Try:

myServer = SocketServer.ThreadingTCPServer(('0.0.0.0', 7777), MyHandler)