VPN(Virtual Private Network) is a current security technique to set up a safe network, and becomes a researching focus for its security, agility and economic.
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- 虚拟专用网(VPN,Virtual Private Network)就是一种常见的建设安全的企业内部网的安全技术,并以其安全性、灵活性和经济性成为了研究的热点。