dns轮训python

环境

python3

先安装dnspython模块 httpclient模块 resolver模块

pip install dnspython

pip install hhtpclient

pip install resolver

dns轮训(方法一)

import dns.resolver

import os

import http.client

iplist = []

appdomain = 'www.baidu.com'

def get_iplist(domain=''):

    try:

        A = dns.resolver.query(domain,'A')

    except Exception as e:

        print ("dns resolver error:"+str(e))

        return

    for i in A.response.answer:

        for j in i.items:

            iplist.append(j)

    return True

def checkip(ip):

    checkurl = str(ip) + ':80'

    getcontent=''

    http.client.socket.setdefaulttimeout(20)

	#创建连接对象

    conn = http.client.HTTPConnection(checkurl)

    try:

        conn.request('GET','/',headers = {'Host': appdomain})

        r = conn.getresponse()

        getcontent = r.read(15)

    finally:

        if getcontent == b'<!DOCTYPE html>':

            print (str(ip)+' [ok]')

        else:

            print (str(ip)+' [Error]')

if __name__ == "__main__":

    if get_iplist(appdomain) and len(iplist) > 0:

        for ip in iplist:

            checkip(ip)

    else:

        print('dns resolver error.')

　dns轮训(方法二)

巴特西

dns轮训python

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