How do I communicate between two computers on the same network

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Hello, I'm pretty new to network programming and I'm trying to communicate between two computers on the same network using sockets in Python.
I've learned about sockets and how to use them but for some reason, I couldn't make this thing work.
I tried doing this on the same computer with two different Python IDEs and it worked, but when I tried to do this on two different computers it didn't.

What I have tried:

Server side

Python

import socket

s = socket.socket()
host, port = socket.gethostname(), 12345
s.bind((host, port))
s.listen(5)
c, addr = s.accept()

c.send("Thank you for connecting to my server")
c.close()

Client side

Python

import socket

s = socket.socket()
host, port = socket.gethostname(), 12345
s.connect((host, port))

print(s.recv(1024)

Please help me to solve this, thanks in advance.

Posted 8-Dec-18 7:40am

Niv Moshe (Dindibo4)

Updated 8-Dec-18 17:38pm

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Richard MacCutchan 9-Dec-18 3:15am

Google for "python socket samples" and you will find what you need.

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Wendelius · Answer 1 · 2018-12-08T17:38:00

Not sure if I understand the question correctly, but it looks like you're using the current python host name for both client and server side. So it seems that you always try to connect to the same computer where the code is running. Instead, you should probably use the name of the host you're trying to connect to and use for example gethostbyname to resolve the address.

Another thing is that the port you use should be open so ensure that a firewall isn't blocking the communication.