Python利用socket模块开发简单的端口扫描工具的实现

#!/user/bin/
# -*- coding:UTF-8 -*-
# Author:Master_sir
# Version:python2.7

import socket,sys

dk = []
for i in range(0,65536):
  dk.append(i)
ports = dk
def IsOpen(ip,port):
  try:
    s = socket.socket()
    s.settimeout(1)
    s.connect((ip,port))
    return True
  except:
    return False
  pass
def PortScan(ip):
  for p in ports:
    if IsOpen(ip,p):
      sys.stderr.write('%s:%s is open\n' % (ip,p))
      
PortScan('xxx.xxx.xxx.xxx')
#要扫描的ip