Socket error: connection refused - what am I doing wrong?

Question

I\'ve just started learning the basics of sockets (Linux). I tried my hand at a small example, but it doesn\'t work and I have no idea what\'s wrong.

I get a \"Connectio

Answer 1

Your Answer is: You program is client and it need a server to connect. nc command create server and your program can connect to it.

[root@mg0008 work]# nc -l 127.0.0.1 1234 &
[1] 25380
[root@mg0008 work]# ./socket
Give message: Hello
Hello

Answer 2

According to the man page:

ECONNREFUSED No-one listening on the remote address.

---

In order to provide a simple remote endpoint that accepts your connection and sends back the received data (echo server), you could try something like this python server (or to use netcat):

import socket
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(("localhost", 1234))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr
while 1:
    data = conn.recv(1024)
    if not data: break
    conn.sendall(data)
conn.close()

Answer 3

probably no server listening port 1234 in your local host