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Wei Yu Kesheng

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Published on August 8, 2017 9:00:08 AM ● Video Link: https://www.youtube.com/watch?v=_lFlQRSHT9Q

Duration: 11:31

1,457 views

3

因为一些人的原因所以做了这个视频。
他们需要进行连接VPN浏览Google、Twitter、Facebook等中国大陆屏蔽的网站。

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什么是VPN呢？
虚拟私人网络（英语：Virtual Private Network，缩写为VPN）是一种常用于连接中、大型企业或团体与团体间的私人网络的通讯方法。虚拟私人网络的讯息透过公用的网络架构（例如：互联网）来传送内联网的网络讯息。它利用已加密的通道协议（Tunneling Protocol）来达到保密、传送端认证、讯息准确性等私人讯息安全效果。这种技术可以用不安全的网路（例如：网际网路）来传送可靠、安全的讯息。需要注意的是，加密讯息与否是可以控制的。没有加密的虚拟私人网路讯息依然有被窃取的危险。

作用呢？
虚拟专用网络的功能是：在公用网络上建立专用网络，进行加密通讯。

由于中国大陆境内对于海外网路的限制及封锁，所以中国大陆兴盛起以采用免费或付费的虚拟私人网路（VPN）进行海外网路连线服务的方法进行翻墙，或许多外商公司欲连线回海外网站也多自行架设VPN或采用付费的VPN服务。2015年1月起，中国开始加强对外国VPN服务的封锁。VPN供应商Astrill通知用户，因防火长城升级，使用IPSec、L2TP/IPSec和PPTP协议的设备无法访问它的服务，受影响的主要是iOS设备。

2017年1月22日，工业和信息化部发布《工业和信息化部关于清理规范互联网网络接入服务市场的通知》，规定未经电信主管部门（各一级行政区通信管理局）批准，不得自行建立或租用VPN、国际专线等其他信道开展跨境经营活动至2018年3月31日。而在境内VPN属于《商用密码管理条例》须经国家密码管理局批准。这也意味着在中国大陆的ISP、IDC或CDN提供商租用或建立VPN或国际专线开展业务，必须取得各一级行政区通信管理局的批准。

什么又是长城防火墙

防火长城（英语：Great Firewall (of China)），常用简称：GFW，中文也称中国国家防火墙，中国大陆民众俗称防火墙等），是对中华人民共和国政府在其互联网边界审查系统（包括相关行政审查系统）的统称。此系统起步于1998年，其英文名称得自于2002年5月17日Charles R. Smith所写的一篇关于中国网络审查的文章《The Great Firewall of China》，取与Great Wall（长城）相谐的效果，简写为Great Firewall，缩写GFW[5]。随着使用的拓广，中文“墙”和英文“GFW”有时也被用作动词，网友所说的“被墙”即指被防火长城所屏蔽，“翻墙”也被引申为浏览境外网站的行为。

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Because of some people reason to do this video.
They need to connect VPN to browse Google, Twitter, Facebook and other mainland China shield site.

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What is a VPN?
Virtual Private Network (VPN) is a communication method commonly used in connecting, large enterprises or private networks between groups and groups. Virtual private network messages send intranet messages through a public network infrastructure (eg, the Internet). It uses the encrypted tunneling protocol to achieve private message security such as confidentiality, sender authentication, and message accuracy. This technology can use an insecure network (eg, the Internet) to deliver reliable, secure messages. It should be noted that the encrypted message is controllable. Virtual private network messages that are not encrypted are still at risk of being stolen.

What about it?
Virtual private network function is: in the public network to establish a dedicated network, encrypted communication.

Due to the restrictions and blockades of overseas networks in mainland China, mainland China has been able to use the free or paid virtual private network (VPN) for overseas network connection to the wall, or many foreign companies want to Online back to overseas sites also set up their own VPN or the use of paid VPN services. Since January 2015, China has stepped up its blockade of foreign VPN services. VPN provider Astrill informs users that the device that uses IPSec, L2TP / IPSec and PPTP can not access its services due to the upgrade of the Great Wall, which is mainly affected by iOS devices.

On January 22, 2017, the Ministry of Industry and Information Technology promulgated the Notice of the Ministry of Industry and Information Technology on the Cleanup of the Internet Access Market, which stipulated that it would not be approved by the Telecommunications Administration (the Administrative Regulatory Authorities of the Primary Administrative Regions) To establish or rent VPN, international green and other channels to carry out cross-border business activities to March 31, 2018. And in the territory of VPN is "commercial password management regulations" subject to the National Password Authority approved. This also means that ISPs, IDCs or CDN providers in mainland China hire or establish VPN or international leased line to carry out business, must obtain the approval of the first level of the District Communications Authority.

What is the Great Wall firewall

(The Great Wall (of China)), commonly known as: GFW, Chinese also known as China National Firewall, the Chinese mainland people commonly known as the firewall, etc.), is the Government of the People's Republic of China in its Internet border review system (including the relevant administrative review System) collectively. The system was launched in 1998 and its English name was derived from the article "The Great Firewall of China" written by Charles R. Smith on May 17, 2002, and the Great Wall (China) Harmonic effect, abbreviated as Great Firewall, abbreviated GFW [5]. With the use of the broaden, the Chinese "wall" and the English "GFW" is sometimes used as a verb, netizens said "wall" that is shielded by the Great Wall of fire, "over the wall" was also extended to browse foreign websites the behavior of.

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