fangdingjun

#限制单个ip的tcp的并发连接数为30
iptables -A INPUT -p tcp -m connlimit --connlimit-above 30 -j DROP

#限制连接web服务的连接速度, 单个ip在10s内只允许建立10个新连接
iptables -A INPUT -p tcp -m multiport --dport 80,443 -m state --state NEW --set --name web
iptables -A INPUT -p tcp -m multiport --dport 80,443 -m state --state NEW --update --name web \
--hitcount 10 --seconds 10 -j REJECT

fangdingjun

var net=require("net");
var tls = require("tls");

/* listen address and port */
var listen_host = "0.0.0.0";
var listen_port = 8080;

/* the upstream https servers */
var servers = [
    {host: "a.example.com",port:18080},

fangdingjun

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import urllib2
import urllib
import json
import xmlrpclib

class PcsLib(object):
    def __init__(self, access_token, timeout = 10, basepath= "/apps/bypy"):