VPN and How it Works

What Is VPN and What does it Mean ?

VPN stands for Virtual Private Network a service that helps you stay private.

It establishes a secure, encrypted connection between your computer and the internet traffic also disguise your online identity.

Providing a private tunnel for your data and communications while you use public networks. This makes it more difficult for third parties to track your activities online and steal data.

How does VPN Work ?

Instead of sending your internet traffic directly to your Internet Service Provider (ISP), a VPN hides your IP address by letting the network redirect it through a specially configured remote server run by provider

A VPN works like a filter that turns all your data into “garbage”. Even if someone were to get their hands on your data, it would be useless.

How does the encryption tunnel work?

Encryption is a method of scramble normal text into an unreadable bunch of code. A decryption key, unscrambles the text and renders it back into readable information.

When you use a VPN, only your device and the provider have the decryption key. Anyone else trying to spying on you would only see a mess of characters.

There are three main types of encryption:

hashing, symmetric cryptography, and asymmetric cryptography. Each type has its own strengths and weaknesses, but they all can scrambling your data so that it is useless in anyone else’s hands.

What are the benefits using VPN connection?

  • Secure encryption:  your online activities are hidden even on public networks. To read the data, you need an encryption key . Without one, it would take millions of years for a computer to decipher the code in the event of a brute force attack .
  • Disguising your whereabouts : VPN servers essentially act as your proxies on the internet. Because the demographic location data comes from a server in another country, your actual location cannot be determined.
  • Access to regional content: Services and websites often contain content that can only be accessed from certain parts of the world. With VPN location spoofing , you can switch to a server to another country and effectively “change” your location.
  • Secure data transfer: VPN services connect to private servers and use encryption methods to reduce the risk of data leakage.

VPN disadvantages

As with benefits, there are also some disadvantages for using a VPN

  • Potentially slower speed: Your web traffic goes through more steps than usual when connected via VPN, so there could be a perceptible slowdown.
  • Quality Of Service challenges: VPN do not yet have a standard in place to gauge and report such measurements. With no metrics to analyze, you need to rely on professional reviews and word-of-mouth to learn what’s most reliable.
  • Blocked: Some companies are beginning to block access from known VPN IP addresses.
  • No cookie protection: While the VPN does its job of keeping you private and encrypted, it’s not possible for a VPN to block cookies, some of which are necessary to make sites work properly.
  • Not total privacy: While a VPN blocks your ISP, governments, hackers, and other snoops, the provider itself can see your internet activity if they want.

Different types of VPN

There are many different types of VPNs, but these are the three main types:

  • SSL

is usually implemented via a corresponding hardware box. The prerequisite is usually an HTML-5-capable browser. HTML-5 capable browsers are available for virtually any operating system. Access is guarded with a username and password.

  • Site-to-site

site-to-site is essentially a private network designed to hide private intranets and allow users of these secure networks to access each other’s resources.

site-to-site is useful if you have multiple locations in your company, each with its own local area network (LAN) connected to the WAN (Wide Area Network).

  • Client-to-Server

Connecting via a Client-to-Server can be imagined as if you were connecting your home PC to the company with an extension cable. Employees can dial into the company network from their home office via the secure connection and act as if they were sitting in the office.

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