Layer 2 Tunneling Protocol, IPsec, OpenVPN, Secure Socket Tunneling Protocol, and Internet Key Exchange version 2 are all common virtual private network protocols. Software-based virtual private networks establish a secure connection between a virtual private network server and a software client on a user's device.
The term "virtual private network" refers to a service that allows you to remain anonymous online. While using public networks, a VPN establishes a secure, encrypted connection between your computer and the internet, creating a private tunnel for your data and communications.
The data between the connections is encrypted using the Point-to-Point Protocol (PPP). PPTP is one of the most extensively used VPN protocols, having been around since Windows' early days. Apart from Windows, PPTP is also utilised on Mac and Linux.
A virtual private network (VPN) achieves the same thing, but over the internet. It makes your connection unavailable to other internet users by encrypting data and using specific servers. It's like a wire linking those two computers, only the second one connects to the entire internet. Although the scale is larger, the level of security remains the same.
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