爲什麼通過IP訪問是好的，但域失敗？

我有公網IP的服務器上啓動一個新的Django應用程序，然後使用命令來運行它：
爲什麼通過IP訪問是好的，但域失敗？

python manage.py runserver publicip:port

後來我發現，當我與http://publicip:port訪問它，它工作正常。但是當我使用該域名（其中被解析到這個IP），它失敗了，並給出了打擊錯誤:(https://dpaste.de/FIrk）

0 errors found 
October 10, 2013 - 10:31:13 
Django version 1.5.1, using settings 'testsite.settings' 
Development server is running at http://*.*.*.*:8709/ 
Quit the server with CONTROL-C. 

Traceback (most recent call last): 
    File "/usr/lib/python2.7/wsgiref/handlers.py", line 86, in run 
    self.finish_response() 
    File "/usr/lib/python2.7/wsgiref/handlers.py", line 127, in finish_response 
    self.write(data) 
    File "/usr/lib/python2.7/wsgiref/handlers.py", line 210, in write 
    self.send_headers() 
    File "/usr/lib/python2.7/wsgiref/handlers.py", line 268, in send_headers 
    self.send_preamble() 
    File "/usr/lib/python2.7/wsgiref/handlers.py", line 189, in send_preamble 
    self._write('HTTP/%s %s\r\n' % (self.http_version,self.status)) 
    File "/usr/lib/python2.7/wsgiref/handlers.py", line 389, in _write 
    self.stdout.write(data) 
    File "/usr/lib/python2.7/socket.py", line 324, in write 
    self.flush() 
    File "/usr/lib/python2.7/socket.py", line 303, in flush 
    self._sock.sendall(view[write_offset:write_offset+buffer_size]) 
    error: [Errno 104] Connection reset by peer 
---------------------------------------- 
Exception happened during processing of request from ('58.33.144.118', 53268) 
Traceback (most recent call last): 
    File "/usr/lib/python2.7/SocketServer.py", line 582, in process_request_thread 
    self.finish_request(request, client_address) 
    File "/usr/lib/python2.7/SocketServer.py", line 323, in finish_request 
    self.RequestHandlerClass(request, client_address, self) 
    File "/usr/local/lib/python2.7/dist-packages/django/core/servers/basehttp.py", line  150, in __init__ 
    super(WSGIRequestHandler, self).__init__(*args, **kwargs) 
    File "/usr/lib/python2.7/SocketServer.py", line 640, in __init__ 
    self.finish() 
    File "/usr/lib/python2.7/SocketServer.py", line 693, in finish 
    self.wfile.flush() 
    File "/usr/lib/python2.7/socket.py", line 303, in flush 
    self._sock.sendall(view[write_offset:write_offset+buffer_size]) 
error: [Errno 32] Broken pipe 
----------------------------------------

任何人都可以給一些建議，找出爲什麼訪問，THX很多。

來源

2013-10-10 Tiany Wang