The function of virtual private network is to establish a private network on the public network for encrypted communication.

It is widely used in enterprise networks. VPN gateway encrypts the data packet and converts the destination address of the data packet to realize remote access.

There are many ways to classify VPN, mainly by protocol. VPN can be realized in many ways, such as server, hardware and software.

I recently used Yueyou VPn. It feels good. You can use it. Official website has an account available.

Education network and company network are estimated to be limited. You'd better try the effect.