Free download Address What is a VPN? VPN is the English name "Virtual Private Network", translation is a "virtual private network." As the name suggests, a virtual private network we can understand it as a virtual enterprise from the green. It can be encrypted through a special communication protocol in the Internet connection is located at different places on two or more enterprises to build a proprietary network between the lines of communication is set up like a line like, but it does not the need for the laying of fiber optic cable to a real physical type of line. This is like an application to telephone lines, but not to the cost of laying lines, there was no need to buy routers and other hardware equipment. VPN router technology was one of the important technologies, the current in the switches, firewall devices or software such as Windows 2000 also support the VPN function, a word, VPN is the core of public networks in the use of virtual private network.
Popular tell: VPV is through software or hardware will be different locations, different regions on the public network can connect the computer into the form of local area network. VPN ago to do a lot of people to buy Lead, is now mainly used to break our national firewall to prohibit access to some GFW visit some websites. For example, and so on Blogger.com Youtube.com.
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