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VPN是英文Virtual Private Network缩写,中文译为虚拟专网。对于VPN的定义有很多,但都是基于这样一种思想,那就是VPN利用公共网络基础设施,通过一定的技术手段达到类似私有专网的数据安全传输。从定义上看,VPN首先是虚拟的,也就是说VPN并不是某个公司专有的封闭线路或者是租用某个网络服务商提供的封闭线路。但同时
VPN is English abbreviation of Virtual Private Network, Chinese translated as virtual private network. There are many definitions of VPNs, but all are based on the idea that VPNs use public network infrastructures to achieve data-secure transmission similar to private private networks through certain technical means. By definition, VPNs are first and foremost virtual, meaning that VPNs are not proprietary closures of a company or are leased by closed circuits from a network service provider. But at the same time