What are the basic requirements to set up a free VPN server for Android?

[techbles]

To set up a free VPN server, you’ll need:
A server or computer which has a global IP address (for example, a hosting service like AWS, Google, Oracle with a trial offer).
Programs or application to set up the VPN such as Open VPN or Wire Guard.
The candidate should possess rudimentary understanding of networks and computers, especially servers.
Another is to possess an Android device to connect to the VPN server.

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