Basics of VPN

VPN

VPN stands for Virtual Private Network. It uses the Point-to-Point Tunneling Protocol (PPTP) or Layer Two Tunneling Protocol (L2TP). We use VPN to securely access resources on a network by connecting to a remote access server through the Internet or other network.

The use of both private and public networks to create a network connection is called a virtual private Network. 

Advantages

• The connection over internet is encrypted and secure.
• Keeps you anonymous and prevent spying.
• New authentication and encryption protocols are enforced by the remote access server.
• Sensitive data is hidden from Internet users, but made securely accessible to appropriate users through a VPN.
• Very useful for daily internet users, corporate, small and medium business organizations.
• This is first line of defense.
• A VPN can be set up across any link.
  

Many VPN services available now a days, however the paid service is better than the free one. 

There are basically three types of VPN used in business. 

• Remote Access VPN
• Point to point VPN
• Extranet VPN
  

Remote Access VPN: It allows remote users to securely access the corporate network anytime through a secure login credential.

Some VPN tools present in the market are such as;

• NORD VPN
• Express VPN
• Proton
• Checkpoint IPSec
• Open VPN
• Netmotion

As a common feature, all VPN solutions have primary goal of Access control, User authentication, encryption and secure network connectivity. 

So this is just basic. Feel free to post your suggestions and comments below.

-DR