Python模块域名dnspython解析

wget https://www.dnspython.org/kits/1.16.0/dnspython-1.16.0.tar.gz

tar -zxvf dnspython-1.16.0.tar.gz

cd dnspython-1.16.0
python setup.py install

query(self, qname, rdtype = 1, rdclass = 1, tcp = False, source = None, raise_on_no_answer = True, source_port = 0)

#!/usr/local/bin/python38
# -*- coding: utf-8 -*-
import dns.resolver

domain = input('Please input an domain: ')  #输入域名地址
A = dns.resolver.query(domain, 'A')  #查询记录为A记录
for i in A.response.answer:
	for j in i.items:
		if j.rdtype == 1: #加判断，不然会出现AttributeError: 'CNAME' object has no attribute 'address'

			print(j.address)

#!/usr/local/bin/python38
# -*- coding: utf-8 -*-

import dns.resolver
domain = input('Input an domain : ')
MX = dns.resolver.query(domain, 'MX')   # 指定解析类型为MX记录
for i in MX:                            # 遍历回应结果
	print('MX preference =', i.preference, 'mail exchanger =', i.exchange)

#!/usr/local/bin/python38

import dns.resolver
domain = input('Input an domain : ')
NS = dns.resolver.query(domain, 'NS')
for i in NS.response.answer:
	for j in i.items:
		print(j.to_text())

#!/usr/local/bin/python38

import dns.resolver
domain = input('Input an domain: ')
CNAME = dns.resolver.query(domain,'CNAME')
for i in CNAME.response.answer:
	for j in i.items:
		print(j.to_text())

#!/usr/local/bin/python38

import dns.resolver
import httplib2

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:
            if j.rdtype == 1:
                iplist.append(j.address)
    return True

def checkip(ip):
    checkurl = 'http://' + ip + ":80"
    getcontent = ""
    httplib2.Socket.setdefaulttimeout(5)
    conn = httplib2.Http()

    try:
        resp,getcontent=conn.request(checkurl)
    finally:
        if  resp['status']== "200":
            print(ip+"[OK]")
        else:
            print(ip+"[Error]")


if __name__ == "__main__":
    if get_iplist(appdomain) and len(iplist) > 0:
        for ip in iplist:
            checkip(ip)