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What is a VPN? – Definition, Why Use a VPN? and More

What is a VPN? – Definition, Why Use a VPN? and More

Many times, you will have heard talk about the famous  VPN networks, very fashionable in recent years, especially when it comes to computer security or internet browsing. In this article, we will define and describe what a  VPN network is, in the simplest and most didactic way possible.

Definition VPN

A  VPN is nothing more than a complete virtual private network.  Going a little deeper, it is a network technology that allows a secure extension of a  local LAN-type network, which locates on a public network, such as the Internet. In this way, computers or devices that are connects to the  [VPN] network can send and receive data over the Internet with private or public equipment, as if they were doing it within a private network, with all the security privileges that this entails. Experts from can tell you how it works in more details.

Their operation is simple, they work as completely virtual, hidden point-to-point connections to the public network. To do this, they use dedicated connections, encryption systems, and a combination of both security technologies to offer complete protection for the data that is transmitted within the virtual private network.

Why Use a VPN?

A major problem with the Internet is that it is inherently insecure. In the initial design of the Internet, the priority was to be able to send data packets from source to destination in as reliable a way as possible. Networking across the countryside and the world was relatively new, and the networking nodes often collapsed. Most Internet communication (protocols) have been design to avoid breakdowns rather than to secure data. The priority was to send a message to its destination.

Applications such as messaging, the web, Facebook, YouTube, etc. Are all built on this core of Internet protocol called the application layer. Some standards have developed, but not all Internet applications are secure. This means that most of the applications we use today continue to send their information without any protection.

This is why Internet users are vulnerable to hackers who could steal personal information such as bank or credit card information, etc. Likewise, governments who may want to listen to their citizens and other Internet users who may want to spy on users.

A VPN creates a private tunnel on the open Internet. The idea is that the whole thing you send is encapsulated in this private communication channel and encrypted so that it cant be decrypted, even if the packets are intercepted. VPNs are, therefore, very powerful and important software to protect your data permanently.

How Does a VPN Work?

Here’s how a VPN works for the user. You start the [VPN] software on your preferred device. As soon as you activate the software, your data is encrypted, even before your ISP sees it. The data is then transmits to the [VPN] server at your online destination. The online destination considers your data to come

What are the Limits of a VPN?

When you use a [VPN], trust is again a question you need to ask yourself. When you use a VPN found on the Internet (free or paid). You offer blind trust to the VPN provider, while the encrypted data (by the VPN) between your computer and their VPN server is decrypted on their server! Nothing would prevent him from keeping your data to spy on you.

So I consider that VPNs are not necessarily a reason to do without any other encryption. In absolute terms, VPNs are not necessarily a guarantee that your privacy is protected. They have certain advantages (concealment of your IP, protection of MITM attacks between you and the VPN, circumvention of censorship, and bridling), but however, they will not make you anonymous.

VPN Types

There are several types of  VPN, depending on the type of access you have. These are the following:

  • Remote access [VPN].
  • Point to Point [VPN].
  • Tunneling.
  • [VPN] Overland.

What Devices can Use a VPN?

Are VPNs for iPhones? And do they hide Android devices from hackers spying? In both cases, the answer is “yes”. Every device that connects to the Internet can take advantage of the privacy that VPN provide. Also, it is common for VPN services to offer connections for multiple devices.

However, while computers, tablets, and phones can be individually connected to a VPN, this task is not as easy for other devices that connect to the Internet. In the latter case, it is finest to configure the router with VPN protection. In this way, everything that enters and leaves this main center will protect. Some routers are sold with pre-integrated VPN software.

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