| contract AbstractVault { | |
| address[] public authorizedUsers; | |
| address public owner; | |
| address public withdrawObserver; | |
| address public additionalAuthorizedContract; | |
| address public proposedAAA; | |
| uint public lastUpdated; | |
| bool[] public votes; | |
| address [] public observerHistory; | |
| modifier onlyAuthorized() { |
| package com.dpmedeiros.androidtestsupportlibrary; | |
| import android.os.Handler; | |
| import android.os.Looper; | |
| import org.mockito.invocation.InvocationOnMock; | |
| import org.mockito.stubbing.Answer; | |
| import org.powermock.api.mockito.PowerMockito; | |
| import java.util.concurrent.Executors; |
由于路由管控系统的建立，实时动态黑洞路由已成为最有效的封锁手段，TCP连接重置和DNS污染成为次要手段，利用漏洞的穿墙方法已不再具有普遍意义。对此应对方法是多样化协议的VPN来抵抗识别。这里介绍一种太简单、有时很朴素的“穷人VPN”。
朴素VPN只需要一次内核配置（Linux内核），即可永久稳定运行，不需要任何用户态守护进程。所有流量转换和加密全部由内核完成，原生性能，开销几乎没有。静态配置，避免动态握手和参数协商产生指纹特征导致被识别。并且支持NAT，移动的内网用户可以使用此方法。支持广泛，基于L2TPv3标准，Linux内核3.2+都有支持，其他操作系统原则上也能支持。但有两个局限：需要root权限；一个隧道只支持一个用户。
朴素VPN利用UDP封装的静态L2TP隧道实现VPN，内核XFRM实现静态IPsec。实际上IP-in-IP隧道即可实现VPN，但是这种协议无法穿越NAT，因此必须利用UDP封装。内核3.18将支持Foo-over-UDP，在UDP里面直接封装IP，与静态的L2TP-over-UDP很类似。
| require 'uri' | |
| require 'net/http' | |
| require 'timeout' | |
| def check_server(ip) | |
| uri = URI('http://ip.mangege.com/') | |
| Timeout::timeout(3) do | |
| Net::HTTP.start(ip, 80) do |http| | |
| request = Net::HTTP::Get.new uri |
##路径截断与合并##
PathRemoveArgs 去除路径的参数
PathRemoveBackslash 去除路径最后的反斜杠 ""
PathAddBackslash 在路径最后加上反斜杠 ""
PathRemoveBlanks 去除路径前后的空格
| #!/usr/bin/env python3.2 | |
| # Benjamin James Wright <[email protected]> | |
| # Maximum Subarray | |
| def max_subarray(L): | |
| current_sum = 0 | |
| current_index = -1 | |
| best_sum = 0 | |
| best_start_index = -1 | |
| best_end_index = -1 |
| package main | |
| import ( | |
| "net/http" | |
| "net/url" | |
| "log" | |
| "io/ioutil" | |
| "regexp" | |
| "fmt" | |
| //"net/http/httputil" |
| #!/bin/bash | |
| ##################################### | |
| #Author: Leon Lee # | |
| #email: [email protected] # | |
| #QQ: 730395591 # | |
| #Version: 1.0 # | |
| #Note: If you have some good ideas # | |
| # or advice, please mail me^^ # | |
| ##################################### |
