http://www.dnspython.org/kits/1.9.4/
python setup.py install
A记录查询
import dns.resolver
domain = raw_input(‘Please input an domain: ‘)
A = dns.resolver.query(domain, ‘A‘)
for i in A.response.answer:
for j in i.items:
print j.address
MX记录
#!/usr/bin/env python
import dns.resolver
domain = raw_input(‘Please input an domain: ‘)
MX = dns.resolver.query(domain, ‘MX‘)
for i in MX:
print ‘MX preference =‘, i.preference, ‘mail exchanger =‘, i.exchange
Please input an domain: zte.com
MX preference = 0 mail exchanger = mx.zte.com.
NS记录
#!/usr/bin/env python
import dns.resolver
domain = raw_input(‘Please input an domain: ‘)
ns = dns.resolver.query(domain, ‘NS‘)
for i in ns.response.answer:
for j in i.items:
print j.to_text()
CNAME记录
#!/usr/bin/env python
import dns.resolver
domain = raw_input(‘Please 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/bin/python import dns.resolver import os import httplib iplist=[] #定义域名IP列表变量 appdomain="www.google.com.hk" #定义业务域名 def get_iplist(domain=""): #域名解析函数,解析成功IP将追加到iplist try: A = dns.resolver.query(domain, ‘A‘) #解析A记录类型 except Exception,e: print "dns resolver error:"+str(e) return for i in A.response.answer: for j in i.items: iplist.append(j.address) #追加到iplist return True def checkip(ip): checkurl=ip+":80" getcontent="" httplib.socket.setdefaulttimeout(5) #定义http连接超时时间(5秒) conn=httplib.HTTPConnection(checkurl) #创建http连接对象 try: conn.request("GET", "/",headers = {"Host": appdomain}) #发起URL请求,添加host主机头 r=conn.getresponse() getcontent =r.read(15) #获取URL页面前15个字符,以便做可用性校验 finally: if getcontent=="<!doctype html>": #监控URL页的内容一般是事先定义好,比如“HTTP200”等 print ip+" [OK]" else: print ip+" [Error]" #此处可放告警程序,可以是邮件、短信通知 if __name__=="__main__": if get_iplist(appdomain) and len(iplist)>0: #条件:域名解析正确且至少要返回一个IP for ip in iplist: checkip(ip) else: print "dns resolver error."