[Nginx] 在nginx中实现单位时间内限制访问频率的教程

map $http_x_forwarded_for  $clientRealIp { 
  "" $remote_addr; 
  ~^(?P<firstAddr>[0-9\.]+),?.*$  $firstAddr; 
  } 
  
  ###safe setting to limit the request number per second 
  limit_req_status 599; 
  limit_req_zone $clientRealIp zone=allips:70m rate=5r/s;

limit_req zone=allips burst=5 nodelay;

import threading 
import time,urllib2 
  
  
url = 'http://sf.gg/' 
def worker(): 
  try: 
   response = urllib2.urlopen(url) 
   print response.getcode() 
  except urllib2.HTTPError, e: 
   print e.code 
  
for i in range(2000): 
  t = threading.Thread(target=worker) 
  t.start()