【python扫描端口号】python扫描端口程序例子

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1、python单线程扫描端口，代码如下：

#!/usr/bin/env python
#coding:utf8
import socket
 
ip = "www.111cn.net
for port in range(1,1024,1):
    sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sk.settimeout(2)
    print "正在扫描端口: %d" % port
    try:
        sk.connect((ip,port))
        print "Server %s port %d OK" % (ip,port)
    except Exception:
        print "Server %s port %d is not connected!" % (ip,port)
 
sk.close()

2、python多进程扫描端口，代码如下：

#!/usr/bin/env python
#coding:utf8
import socket
import sys
import multiprocessing
import time
 
def test(port):
    ip = "www.chlinux.net"
    port = int(port)
    print port
    sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sk.settimeout(0.5)
    print "正在扫描端口: %d" % port
    try:
        sk.connect((ip,port))
        print "Server %s port %d OK" % (ip,port)
    except Exception:
        print "Server %s port %d is not connected!" % (ip,port)
    sk.close()
 
if __name__ == "__main__":
    pool = multiprocessing.Pool(processes=20)
    for port in xrange(1,65535):
        port = int(port)
        pool.apply_async(test,(port, ))
    pool.close()
    pool.join()
    print "Sub-process(es) done."

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