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I created a TCP server program (see server.py) to access the terminal of another computer (see client.py). When I use the client and server locally (only on my computer) everything is fine, however when the client is sending a request from a different computer, I receive this message on the client side : 

Traceback (most recent call last): File "client.py", line 11, in <module> client.connect((serverIP, serverPort)) File "/usr/lib/python2.7/socket.py", line 228, in meth return getattr(self._sock,name)(*args) socket.error: [Errno 111] Connection refused

Note : the server is the computer which is being accessed by the client.

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  • can you ping your server from your remote client? Commented Aug 26, 2015 at 21:31
  • No, I am unable to ping my server. Commented Aug 26, 2015 at 21:38
  • 2
    You'll need to figure that out first. What ip? Is a local intranet ip (e.g 10.10 or 192.168....) you can do an ifconfig on your server to determine the correct IP to use in your client Commented Aug 26, 2015 at 21:41
  • Can you check if the firewall is blocking any external connections on the server? Commented Aug 26, 2015 at 22:02
  • Possible duplicate of Why am I getting the error "connection refused" in Python? (Sockets) Commented Mar 2, 2017 at 10:21

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'Connection refused' means there was nothing listening at the IP:port you tried to connect to.

It comes from the target system, which means that the connection request got there and the refusal came back, so it isn't a firewall issue.

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Solved it. I had to use the IP given to in when running ifconfig (192.168.1.***). I was binding to localhost, and thus I could not connect to the server remotely.

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That wouldn't cause 'connection refused', unless the bind you refer to was at the server, not the client.