端口扫描有哪几种方式

#coding=utf-8

import nmap

from queue import Queue

from threading import Thread

def portscan(ip):

    portlist = []

    nm = nmap.PortScannerYield()

    for r in nm.scan(ip,ports='1-10000',arguments='-sS --min-hostgroup'):

        m = r[1]['scan'][ip]['tcp']

        for p in m:

            temp = str(p) + "----" +m[p]['state']

            portlist.append(temp)

    print(portlist)

class Consumer(Thread):

    def __init__(self, q):

        Thread.__init__(self)

        self.q = q

    def run(self):

        while  not self.q.empty():

            ip = self.q.get()

            try:

                portscan(ip)

            except Exception as e:

                print(e)

                continue

def producer(ip_list):

    num = 10

    threads = []

    q = Queue()

    for i in ip_list:

        print(i)

        q.put(i)

    threads = [Consumer(q) for i in range(0,int(num))]

    for t in threads:

        t.start()

    for t in threads:

        t.join()

ip_list =['120.78.207.76', '120.78.207.231', '120.78.207.18', '120.78.207.233', '120.78.207.165', '120.78.207.48',

'120.78.207.112', '120.78.207.27', '120.78.207.51', '120.78.207.8']

producer(ip_list)