Python implements the TCP port scan Tool

Tag:python    Scan Tool    

[[email protected] ~]# cat  portscan.py #!/usr/bin/env python# -*-  coding:utf-8 -*-import socket# instantiation of an object S = socket.socket ()   #循环遍历你自定义的端口范围   For port in range (1,65535):   #使用python的异常处理 to determine the behavior after a program error   try:     print  "[+] attempting to connect to 127.0.0.1: "  +  STR (port)      #客户端对服务器端进行连接, the format of the general address is a tuple (hostname,port) and returns a socket.error error if there is an error in the connection.     s.connect ((' 127.0.0.1 ',  port))      #发送tcp数据      s.send (' Fuweichao ')      #接受TCP套接字的数据. The data is returned as a string, bufsize specifies the maximum amount of data to receive     BANNER = S.RECV (1024x768)     if  banner:      print  "[+] port "  + str (Port)  +   " open: \n"  + banner    s.close ()   except: pass 

Python knowledge points used: Socket programming, exception handling, for loop traversal, if judgment.

This article from "Shangwei Super" blog, declined reprint!

Python implements the TCP port scan Tool