Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
#!/usr/bin/env python
# -*- encoding: utf-8 -*-
#__author__ == Tr3jer_CongRong
import re
import sys
import time
import threading
import dns.resolver
class Bypass_CDN:
def __init__(self,domain,dns_dict):
self.domain = domain
self.myResolver = dns.resolver.Resolver()
self.dns_list = set([d.strip() for d in open(dns_dict)])
self.good_dns_list,self.result_ip = set(),set()
def test_dns_server(self,server):
self.myResolver.lifetime = self.myResolver.timeout = 2.0
try:
self.myResolver.nameservers = [server]
sys.stdout.write('[+] Check Dns Server %s \r' % server)
sys.stdout.flush()
answer = self.myResolver.query('google-public-dns-a.google.com')
if answer[0].address == '8.8.8.8':
self.good_dns_list.add(server)
except:
pass
def load_dns_server(self):
print '[+] Load Dns Servers ...'
threads = []
for i in self.dns_list:
threads.append(threading.Thread(target=self.test_dns_server,args=(i,)))
for t in threads:
t.start()
while True:
if len(threading.enumerate()) < len(self.dns_list) / 2:
break
else:
time.sleep(1)
print '\n[+] Release The Thread ...'
for j in threads: j.join()
print '[+] %d Dns Servers Available' % len(self.good_dns_list)
def ip(self,dns_server):
self.myResolver.nameservers = [dns_server]
try:
result = self.myResolver.query(self.domain)
for i in result:
self.result_ip.add(str(i.address))
except:
pass
def run(self):
self.load_dns_server()
print '[+] Dns Servers Test Target Cdn ...'
threads = []
for i in self.good_dns_list:
threads.append(threading.Thread(target=self.ip,args=(i,)))
for t in threads:
t.start()
while True:
if len(threading.enumerate()) < len(self.good_dns_list) / 2:
break
else:
time.sleep(1)
for j in threads: j.join()
for i in self.result_ip: print i
if __name__ == '__main__':
dns_dict = 'foreign_dns_servers.txt'
bypass = Bypass_CDN(sys.argv[1],dns_dict)
bypass.run()
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.