Python DNS轮询监控脚本
!/usr/bin/python
* coding:utf-8 *
Filename:dns5.py
import dns.resolver
import os
import httplib
iplist=[]
appdomain="www.baidu.com"
def get_iplist(domain):
try:
A = dns.resolver.query(domain,'A')
except Exception,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=""
httplib.socket.setdefaulttimeout(5)
conn=httplib.HTTPConnection(checkurl)
try:
conn.request("GET","/",headers={"Host":appdomain})
r=conn.getresponse()
getcontent=r.read(15)
finally:
if getcontent=="<!DOCTYPE html>":
print ip," [OK]"
else:
print ip," [Error]"
def main():
if get_iplist(appdomain) and len(iplist)>0:
for ip in iplist:
checkip(ip)
else:
print "dns resolver error."
