how to solve socket.error: [Errno 10061] in python with server and my computer

Question

I want to make the tcp communication with my computer and server(ubuntu).

The server ip is 203.246.114.176 and it's port 30000 is open.

Its okay that server is running the server.py

server.py

import socket

import sys



# Create a TCP/IP socket

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Bind the socket to the port

server_address = ('localhost', 30000)

print >>sys.stderr, 'starting up on %s port %s' % server_address

sock.bind(server_address)



# Listen for incoming connections

sock.listen(1)



while True:

    # Wait for a connection

    print >>sys.stderr, 'waiting for a connection'

    connection, client_address = sock.accept()



    try:

        print >>sys.stderr, 'connection from', client_address



        # Receive the data in small chunks and retransmit it

        while True:

            data = connection.recv(16)

            print >>sys.stderr, 'received "%s"' % data

            if data:

                print >>sys.stderr, 'sending data back to the client'

                connection.sendall(data)

            else:

                print >>sys.stderr, 'no more data from', client_address

                break



    finally:

        # Clean up the connection

        connection.close()

And my computer has client.py

client.py

import socket

import sys



# Create a TCP/IP socket

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)



# Connect the socket to the port where the server is listening

server_address = ('203.246.114.176', 30000)

print >>sys.stderr, 'connecting to %s port %s' % server_address

sock.connect(server_address)



try:



    # Send data

    message = 'This is the message.  It will be repeated.'

    print >>sys.stderr, 'sending "%s"' % message

    sock.sendall(message)



    # Look for the response

    amount_received = 0

    amount_expected = len(message)



    while amount_received < amount_expected:

        data = sock.recv(16)

        amount_received += len(data)

        print >>sys.stderr, 'received "%s"' % data



finally:

    print >>sys.stderr, 'closing socket'

    sock.close()

When I run at server, the output is like this.

starting up on localhost port 30000
waiting for a connection

enter image description here

and the ufw status is like this.

To                         Action      From

--                         ------      ----

22                         ALLOW       Anywhere

5979/tcp                   ALLOW       Anywhere

5901                       ALLOW       Anywhere

8080                       ALLOW       Anywhere

5978/tcp                   ALLOW       Anywhere

5980/tcp                   ALLOW       Anywhere

31415                      ALLOW       Anywhere

5981                       ALLOW       Anywhere

5982                       ALLOW       Anywhere

5983                       ALLOW       Anywhere

5984                       ALLOW       Anywhere

5985                       ALLOW       Anywhere

22/tcp                     ALLOW       Anywhere

2222/tcp                   ALLOW       Anywhere

77/tcp                     ALLOW       Anywhere

21                         ALLOW       Anywhere

3306                       ALLOW       Anywhere

30000/tcp                  ALLOW       Anywhere

30001/tcp                  ALLOW       Anywhere

30002/tcp                  ALLOW       Anywhere

30003/tcp                  ALLOW       Anywhere

30004/tcp                  ALLOW       Anywhere

30005/tcp                  ALLOW       Anywhere

30006/tcp                  ALLOW       Anywhere

30007/tcp                  ALLOW       Anywhere

22 (v6)                    ALLOW       Anywhere (v6)

5979/tcp (v6)              ALLOW       Anywhere (v6)

5901 (v6)                  ALLOW       Anywhere (v6)

8080 (v6)                  ALLOW       Anywhere (v6)

5978/tcp (v6)              ALLOW       Anywhere (v6)

5980/tcp (v6)              ALLOW       Anywhere (v6)

31415 (v6)                 ALLOW       Anywhere (v6)

5981 (v6)                  ALLOW       Anywhere (v6)

5982 (v6)                  ALLOW       Anywhere (v6)

5983 (v6)                  ALLOW       Anywhere (v6)

5984 (v6)                  ALLOW       Anywhere (v6)

5985 (v6)                  ALLOW       Anywhere (v6)

22/tcp (v6)                ALLOW       Anywhere (v6)

2222/tcp (v6)              ALLOW       Anywhere (v6)

77/tcp (v6)                ALLOW       Anywhere (v6)

21 (v6)                    ALLOW       Anywhere (v6)

3306 (v6)                  ALLOW       Anywhere (v6)

30000/tcp (v6)             ALLOW       Anywhere (v6)

30001/tcp (v6)             ALLOW       Anywhere (v6)

30002/tcp (v6)             ALLOW       Anywhere (v6)

30003/tcp (v6)             ALLOW       Anywhere (v6)

30004/tcp (v6)             ALLOW       Anywhere (v6)

30005/tcp (v6)             ALLOW       Anywhere (v6)

30006/tcp (v6)             ALLOW       Anywhere (v6)

30007/tcp (v6)             ALLOW       Anywhere (v6)

enter image description here

But my computer show this output.

C:\Users\user\Documents\notepad>python client.py

Traceback (most recent call last):

  File "client.py", line 7, in <module>

    s.connect((host, port))

  File "C:\Python27\lib\socket.py", line 228, in meth

    return getattr(self._sock,name)(*args)

socket.error: [Errno 10061]

What is the matter ??

And what should I do?

help plz.

Answer 1

You have an error in server in this line:

server_address = ('localhost', 30000)

localhost is usually 127.0.0.1, so You are not binding it to 203.246.114.176 as You think. Try using

server_address = ('203.246.114.176', 30000)

for this exact IP address, or

server_address = ('0.0.0.0', 30000)

to listen on all active interfaces.

how to solve socket.error: [Errno 10061] in python with server and my computer

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