What is a VPN? How does VPN work?

what is a vpn

More or less everyone is familiar with the word VPN. VPN is the main tool for those who want to keep themselves safe and secure in the internet world. Although many people visit blocked websites with VPN, many people do not know much about VPN. Before using any topic on the internet, you need to have a little idea about it. Otherwise you will fall into the clutches of hackers and lose everything.

So, it is very important to know what VPN actually is and how it works. In today’s article, we will discuss what VPN is and how it works, as well as the answers to many unknown questions in your mind about VPN. However, before using free VPN we must know how safe these are. Although we often need to use a VPN, it should be used with security in mind.

What is a VPN?

VPN stands for Virtual Private Network. It creates a secure connection between you and another network on the Internet. Most people use VPN primarily to access regionally blocked sites, to protect the privacy of information, and to protect themselves from being traced while browsing sensitive content.

VPNs were originally created to securely connect business and commercial private networks.

VPN forwards your network traffic through any other network. Almost all operating systems have built-in VPN support.

How does VPN work?

How does VPN work

When you access the Internet, you create an address called an IP address. This IP address provides your address and the identity of the person using the Internet.

On the other hand, when you are accessing somewhere through the internet, it is going through your ISP. That is, through those from whom you are taking the Internet. The ISP can see your information if you want. For example, they’ll know when you’re accessing a website, and they’ll be able to see your password if it’s not encrypted. However, this work will be seen not only by ISPs but also by many hackers.

Now the question may come what is the way to survive! In a word, the answer is VPN. As I said before, VPN is like a protected tunnel. VPN is a private network. This means that when you enter a website, it will first go to the VPN client. And this client will encrypt it and send it to the ISP.

And last but not least, the VPN server will encrypt it and enter the server of the desired website and the website will show on your computer or mobile browser.

The question may be, what is encrypted? Simply put, encrypting is the process of messing up your data. For example, the password for your Facebook ID is My @ password. Now when it is encrypted, it will be ftrfgygkljfquaej. That is, it will go differently which requires the permission of the VPN server to convert again. And the VPN server will only give permission to Facebook. If any hacker or ISP wants to know or see through the middle, they will not be able to know, will not be able to see.

Another interesting thing is that since VPN enters another network i.e. VPN, the VPN company hides your real IP address and they create a different IP address, so your location is hidden. The ISP or website cannot track your exact location.

As a result, even if the government of a country shuts down a website, it is possible to access that website through a VPN. So through this discussion, we understood two things, VPN is used for 2 purposes. E.g .:

  • Security: For security, your information is securely sent to the desired website. So that no stranger can collect your ebb.
  • Unblock: To unblock a blocked website. Since the VPN hides the IP and hides your identity, no website or IP can understand it. Where are you actually using the internet from? So there are no more barriers to accessing the website.

Now let us know, how it can go down through VPN is encrypted, how it can go. This process of sending data is called VPN n Pratol. There are 5 types of pretzels. E.g .:

  • PPTP: Stands for “Point-to-Point Tunneling Protocol.” PPTP is a networking standard to connect. VPNs are secure networks that can be accessed over the Internet, allowing users to access a network from a remote location.

This protocol was created by Microsoft. This is a very old version so it works well on older computers. It is quite easy and fast to use. However, this protocol is not as effective and secure as VPN.

  • L2TP / IPset: Full Lays2Tunneling Protocol of 2TP. While Microsoft PPTP protocols are not very useful at the present time, they combined PPTP protocols with Cisco’s L3F to create relatively powerful protocols. But it is also currently considered a weak pretzel.
  • SSTP: Secure Socket Tunneling Protocol (SSTP) It provides a mechanism for transporting PPP traffic through SSL / TLS channels.

It is also a protocol made by Microsoft. It creates connections via SSL TLS encryption. SSL and TLS also have built-in Semitic key cryptography. As a result, it does not simply allow a third party to view the data between you and your desired server. This pretzel is quite powerful.

  • IKEv2: IKEv2 (Internet Key Exchange version 2) It handles request and response activities. It makes sure the traffic is secure by establishing and handling the SA (Security Association) attribute within an authentication suite – usually, IPSec since IKEv2 is basically based on it and built into it.

IKEv2 was developed by Microsoft together with Cisco, and it’s the successor to IKEv1.

  • OpenVPN: This is an open-source project. It is a much more secure and powerful protocol.

In the above method, data is transmitted mainly through VPN. And VPN means, by entering another computer different from your computer or mobile, from there you will enter the desired website.

So it takes a VPN client. And this VPN client will get through the use of software.

Finally, if you just think of accessing the block website, a free VPN is enough. But, you have to use paid VPN if you want to find both block and security. But remember one thing, VPN can see your data.

Stay with us to know these kinds of important things. Thanks

Faysal Hossain

I am a freelance article writer on technology. After doing detailed research on various technologies, I am happy to share all the information with everyone online. I am delighted to be associated with Articlesixteen.

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