24.py

#!/usr/bin/python
import os
import time


while 1:
    time.sleep(0.2)
    result = os.popen('netstat -tuna | grep :80 | grep SYN_RECV').read().rsplit('\n')
	try:
		flag = False
		for ip in result:
			if len(ip) is 6:
				flag = True
				text_word = ip[5].rsplit(':')[0]
				print 'banned',text_word
				deny = 'iptables -I INPUT -s %s -j DROP' %text_word # it use iptables to ban users
				os.system(deny)
				deny = 'iptables -A INPUT  -s %s -j DROP' %text_word
				os.system(deny)
				ipsave = open('/root/Banned.txt','a') #save ip banned for me
				ip_add = text_word + '\n'
				ipsave.write(ip_add)
				ipsave.close()
		if flag is True:
			os.system('service iptables-persistent save')
			os.system('service iptables-persistent restart')
	except:
		print 'error'