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VPN stands for virtual private network, which is a secure tunnel that extends between your device and the internet. VPN technology is quite old, but it has been made very convenient by various providers of VPN services, making it accessible even to regular users who want to increase their privacy and security on the internet, circumvent geographic restrictions, and avoid snooping.

Virtual private networks use many different security mechanisms, including Internet Protocol Security (IPsec), Transport Layer Security (SSL/TLS), Datagram Transport Layer Security (DTLS), Microsoft Point-to-Point Encryption (MPPE), Microsoft Secure Socket Tunneling Protocol (SSTP), Multi-Path Virtual Private Network (MPVPN), and Secure Shell (SSH) VPN. Unless you want to create your own VPN server, you don’t need to worry about tunneling protocols and encryption techniques since modern VPN apps take care of everything for you.

You can create a VPN with OpenVPN, open-source commercial software that implements virtual private network techniques. The process itself is fairly complicated, and you should have at least a basic understanding of networking and related topics. You will need a computer with OpenVPN, a public IP address, and a security certificate to keep your data encrypted while in transit. Alternatively, you can connect to an existing VPN server and save yourself a lot of time and effort. There are many free and paid VPN servers alike that you can choose from depending on your needs and budget. Some of the most popular options include NordVPN, ExpressVPN, HideMyAss, and Windscripe, just to give you a few examples.