two different remote server communication using python

Question

this is a server code that i am running on remote server.

serv.py

import time, socket, sys
print('Setup Server...')
time.sleep(1)
#Get the hostname, IP Address from socket and set Port
soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host_name = socket.gethostname()
ip = socket.gethostbyname(host_name)
port = 1234
soc.bind((host_name, port))
print(host_name, '({})'.format(ip))
name = input('Enter name: ')
soc.listen(1) #Try to locate using socket
print('Waiting for incoming connections...')
connection, addr = soc.accept()
print("Received connection from ", addr[0], "(", addr[1], ")\n")
print('Connection Established. Connected From: {}, ({})'.format(addr[0], addr[0]))
#get a connection from client side
client_name = connection.recv(1024)
client_name = client_name.decode()
print(client_name + ' has connected.')
print('Press [bye] to leave the chat room')
connection.send(name.encode())
while True:
   message = input('Me > ')
   if message == 'bye':
      message = 'Good Night...'
      connection.send(message.encode())
      print("\n")
      break
   connection.send(message.encode())
   message = connection.recv(1024)
   message = message.decode()
   print(client_name, '>', message)

This is client code that i am running on local system.

clie.py

import time, socket, sys
print('Client Server...')
time.sleep(1)
#Get the hostname, IP Address from socket and set Port
soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
shost = socket.gethostname()
ip = socket.gethostbyname(shost)
#get information to connect with the server
print(shost, '({})'.format(ip))
server_host = input('Enter server\'s IP address:')
name = input('Enter Client\'s name: ')
port = 1234
print('Trying to connect to the server: {}, ({})'.format(server_host, port))
time.sleep(1)
soc.connect((server_host, port))
print("Connected...\n")
soc.send(name.encode())
server_name = soc.recv(1024)
server_name = server_name.decode()
print('{} has joined...'.format(server_name))
print('Enter [bye] to exit.')
while True:
   message = soc.recv(1024)
   message = message.decode()
   print(server_name, ">", message)
   message = input(str("Me > "))
   if message == "bye":
      message = "Leaving the Chat room"
      soc.send(message.encode())
      print("\n")
      break
   soc.send(message.encode())

Now if the host server is different the connection is not established. but if the host is same then it's working properly and sending texts properly. i want run this code in different server how to do please help me anyone.

Answer 1

In the server script, you use :

host_name = socket.gethostname()

This will probably give you "127.0.0.1".

What you need is for the server to listen to "0.0.0.0" to accept connections from everywhere.

So this will probably do :

host_name = "0.0.0.0"