What is a VPN and why do I need it?

A virtual private network (VPN) allows you to have a secure connection between your local device and an external server. It creates a private network from a public Internet connection, hiding your IP address. With a VPN, all your browsing data is sent through a secure, encrypted channel that protects you from snooping.

Although not a magic wand, a VPN is currently the best way to protect your device from hacking, DNS / IP address leaks, and Internet provider surveillance. Indeed, some governments condemn the use of VPNs, but if you buy a high-quality VPN service with traffic encryption and zero knowledge of DNS, you will be ahead of them!

VPN History

The first mention of VPN was in 1996 when a Microsoft employee, Gurdip Singh-Pall, used PPTP (Point-to-Point Tunneling Protocol) to connect to a remote server. PPTP is the simplest VPN protocol, uses 128-bit encryption and is easily accessible for all VPN providers. For some reason, Microsoft decided not to patent this technology.

In early and mid-August, VPNs were initially used by corporations to securely connect to remote offices. Following the WikiLeaks scandal, consumer interest in personal VPN services is growing. Regardless of whether you are on a computer, tablet or smartphone, when using a VPN you will get more privacy than before.

Over the years, several new VPN protocols have been developed, including L2TP / IPSec, S2TP, and OpenVPN. Of these, OpenVPN and S2TP provide more security and speed than others. In fact, the most successful VPN providers have begun to discontinue L2TP and PPTP.

Starting in 2019, the new VPN protocol, WireGuard, has earned rave reviews about its modern cryptography. It may be available to all leading VPN providers by the end of this year.

How VPN works

A VPN follows a client-server architecture, except that client identification, cannot be decrypted. Imagine the Internet as a cloud. When you log in from the computer, the VPN creates a secure tunnel to the cloud, and one of its global servers replaces your device. Other people and your ISP cannot keep track of what you are doing, as the data seems completely normal to them.

If you connect to a smartphone, your VPN service will provide you with an Android or iOS app. Most good VPNs come with a “kill switch,” which allows you to disconnect without revealing your IP address.

As a VPN consumer, you don’t need to worry about technical details. However, it’s good to know that 256-bit encryption is better than 128-bit, and there should be no DNS leaks. If your real server and IP address are found at any point on the route, this means that your VPN is not working properly. in protecting your personality.

Why use a VPN

For privacy lovers, a VPN is the best shield from government and Internet service surveillance programs. In addition, you can use the Tor browser and virtual machines for added security. One of the VPN applications uses it to access a deep and dark network.

If you live in another country, a VPN is the fastest way to unblock geo-restricted content on Netflix, Hulu, and other video services. When traveling, you may encounter restrictions when trying to access banking and credit card services in your home. In this situation, the VPN can be very convenient, since you only need to select the appropriate server. No matter where you are, you can install the VPN client on any device, for example, in an Internet cafe, and delete it later. A good VPN allows at least three concurrent connections.


If you use a VPN and delete your browser history at the same time, you can be sure that no one will ever know anything about what you did on the Internet. Once you start using the VPN service, you will never want to browse the Internet without it.

Do you feel safer when using a VPN? Please share your personal experiences in the comments below.

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