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The Ultimate Guide To Know What Is VPN And How VPN Works?

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You come to the right place to know what is VPN and how VPN works. VPN (virtual private network) encrypts device’s Internet access through a secure server and it’s a private network that encrypts your receiving and sending data over the Internet. It is a tunnel between you and the Internet that allows you to connect securely anywhere and browse websites privately.


There are many more factors to use VPN. Factors like, VPN gives you more privacy on the internet, it gives you access to the websites that have been banned by your government and some websites give limited time to use paid features and at the end of the trial period, they will force you to use paid features. So VPN is one solution for all problems. Now there are many more questions on your mind, let’s analyze one by one.

What is VPN (Virtual Private Network)?

The acronym VPN stands for Virtual Private Network, As the name implies, it is a private network that encrypts your reception and sending of data over the Internet. It is a tunnel between you and the Internet that allows you to connect safely anywhere and browse websites privately and bypass censorship blocks. You can use VPN on any device like desktop or laptop computers, iPhones or Android phones.

What does a VPN do?

  1. Hides your IP address.
  2. Protect your identity on the internet.
  3. Encrypts your online data.
  4. Bypass censorship laws, unblock restricted websites.
  5. Protects you on public WIFI.
  6. Protects you from Hackers and Snoopers.
  7. Watch any content privately.

How VPN works?

A VPN works by directing your devices web association through your picked VPN’s private worker as opposed to your web access supplier (ISP) so when your information is sent to the web, it originates from the VPN instead of your device.

DNS Request
Secret Keys
Secure Tunnel
Data Encryption

The first step is it sends a DNS request to get an IP address of a VPN server.

In the second step, it generates a secret key for encryption.

VPN creates a private “tunnel” from your device to the web for and hides your crucial information using those secret keys.

Different types of the protocol used to encrypt your data.

How VPN service process?

  1. When you turned on VPN and connect to the internet, you will be connected by VPN provider’s servers not your ISP.
  2. The VPN service provider will provide you with an IP address to identifies your device instead of your own IP address.
  3. VPN also encrypted your data into code for your security and unauthorised access.
  4. Now VPN will hide your IP address which helps you to prevent tracking your device and browser.
  5. After successful connection, No Government, No ISP,  No hackers, No snoopers can read or steal your data. Now you are safe and can surf the web securely.

What are VPN protocols?

A VPN protocol is a set of rules and regulations that are used between the VPN server and the VPN client, by the help of this technology VPNs safely send your data through the internet. But your safety depends on which type of protocols you are using and different protocols depends on user’s needs like, some user focus on prioritizing speed, while others focus on security and privacy. Let’s check most used protocols one by one.

  • OpenVPN
  • IKEv2
  • L2TP/IPSec
  • PPTP

OpenVPN, it is an open-source protocol, it is recommended for all platforms. It’s the highest performance and security. Encryption uses AES – 256-bit and 2048-bit SSL/TLS Handshake encryption.


  • Very fast and secure.
  • Easily configurable.
  • Gets past on most ISP restrictions.
  • It is very secure when used with a strong cypher keys.


  • It requires third-party software for installation.
  • Not supported by some mobile devices.

IKEv2 short for Internet Key Exchange version 2. It is the newest VPN protocol and it is based on IPSec tunneling protocol. Encryption uses AES – 256-bit.


  • Very secure.
  • Fastest VPN protocol.
  • Very stable.
  • Easy to setup.
  • It is very popular among mobile users.


  • Not supported on very old platforms.

L2TP/IPsec, the Layer 2 Tunnel Protocol is used on all modern platforms like  Windows, iOS, Mac, and Android. Its speed is a little bit slower than the other protocols.


  • Easy to setup.
  • Supports all modern platform devices.
  • It's easier to configure than Open VPN. 


  • Slower speed than other protocols.
  • Some networks restrictive firewalls block L2TP/IPsec packets.

PPTP stands for Point-to-Point Tunneling Protocol. It's a very fast connection. PPTP security is outdated but if you use this  protocol to secure your online data is very risky. It uses very basic encryption method.


  • Good speeds.
  • Easy to setup.
  • Supports a large number of devices.


  • Very basic encryption method.
  • A lower level of security.

Are VPNs secure?

Yes, it is but if your VPN service provider uses AES 256-bit encryption method only then your VPN connection is secure. Always choose right VPN otherwise they will see everything that goes through their servers and you have to read that Privacy Policy before choosing any VPN.

If your VPN service provider claims that they have “no logging” policy, it means, they don’t keep your activity logs.

Are VPNs legal to use?

The short answer is yes, VPNs are 100% legal to use but not for all countries. In past VPNs were originally used for big organizations to secure their network. But now these days VPNs are using for illegal activities.

Countries where VPNs are legal and illegal to use

Is this possible to trace anyone while using VPN?

Practically speaking, Your VPN service provider may know who you are. But remember always use incognito mode of your browser or we recommend to use Tor browser before connecting to any VPN because your browsing history or cache file can be traceable by Google once you disconnect from that VPN.

Are VPNs free to use?

Yes, it’s free to use but not all VPNs are free. Free VPN service provider uses different ways to make money.

  1. Advertising — Free VPN service provider uses an advertising method to make money. But be aware of pop-ups, don’t install any pop-ups.
  2. Weak protocols — Free VPN service provider uses weak protocols like PPTP ( Point to Point Tunneling Protocol) which is obsolete.
  3. Small Download limits — Free VPN service provider gives you very small download limits due to low-efficiency servers.

Can you use VPN on multiple devices?

Yes, you can use VPN on multiple devices. If you want to know how to use VPN on multiple devices click below links.

How To Use VPN on iPhone For Free

Now you are going to use VPN on your iPhone. Wow, it sounds crazy...Let's start to setting up a VPN on your iPhone for free in 2020

Click Here

How To Use VPN on Android For Free

Now you are going to use VPN on your Android. Let's start to setting up a VPN on your Android for free in 2020

Click Here
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