Python implements a method of super simple port forwarding

This article illustrates an example of how python implements a super simple port forwarding. Share with you for your reference. The details are as follows:

The code is very simple and implements a simple port data forwarding function, which needs to be modified for real-world use.

#tcp server 

import socket 

host = '127.0.0.1'          #Local Server IP 

host2 = '127.0.0.1'   #Real Server IP 

port = 6001 #Local Server Port 

port2 = 7001 #Real Server Port 

def ProcData(data): 

    return data 

    #add more code.... 

print "Map Server start from " + host + ":" + str(port) +" to " + host2 + ":" + str(port2) +"rn" 

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

server.bind(('127.0.0.1',port)) 

print "127.0.0.1 Server start at "+ str(port) +"rn" 

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

client.connect((host2,port2)) 

print host +" Client connect to " + host2 + ":"+str(port2)+"n" 

server.listen(5) 

ss, addr = server.accept() 

print 'got connected from',addr 

while 1: 

    msg = ss.recv(20480) 

    print "Get:"+repr(msg)+"rn" 

    client.send(msg) 

    #print "Client send data %s to "%repr(msg) 

    buf=client.recv(20480) 

    #print "Client recv data %s from "%repr(buf) 

    ss.send(buf) 

    print "Send:"+repr(buf)+"rn"

I hope this article has helped you with your Python programming.