Virtual Private Network Overview

Virtual Private Network (VPN) is an extremely important term for people in the information technology industry. Many people simply know it is a kind of virtual network without understanding deeply and clearly what the nature of the VPN system is. If you are learning about this term, the following article of Mona Media will be a useful document for you!

What is a Virtual Private Network (VPN)?

VPN is an acronym for Virtual Private Network, also known as virtual private network, virtual network. What does VPN do this is a network technology that helps create secure network connections when joining a service provider’s private network or a public internet, intranet network.

Each virtual private network system can connect to many different sites based on geographical area and region. That’s why we see government agencies can allow users to securely connect to government private networks, thanks to VPN virtual private networks.

VPN virtual private network concept.
To connect to a VPN, you need an account with a name and password. At the same time, you will also be granted access through account verification with a pin code. That pin code will usually apply for a certain period of time from 30s – 1 minute.

You can connect the VPN to your computer or phone as if it were on the same local network. All traffic is sent through and securely connected to the VPN. Therefore, you can be assured of the security of internal network resources.

Besides, you can also use the internet as if you were in a VPN location, which is very convenient for using public wifi, accessing geo-restricted or blocked web. To browse the web with a VPN, the computer contacts the web through an encrypted VPN connection. All information, requests and data exchanged between you and the website will be protected in a secure connection.

Functions of VPN
Download files

If you download BitTorrent on a VPN, you will find file download speeds much faster. This will help with the traffic your ISP is interfering with.

Easy access to blocked, geo-restricted websites

VPN helps to remove the hassle of internet censorship procedures, bypass firewalls, giving you faster and easier access even halfway around the world.

Access your home network even when you’re not at home

VPN has a lot of useful functions for users.
You can still easily access your home network even if you are not at home if you set up a VPN virtual private network. This will help you to access Windows remotely over the internet. You can use files shared on the local network, play games on your computer like you are using a LAN.

Remote enterprise network access

VPN is used in business for easy access to business network including local resources, while on the go, travelling, far away,.. All such resources must be in direct contact with the internet to increased security.

Browse the web anonymously

If you use public wifi to browse the web on non-https sites, the data security is not high. Therefore, you need to hide your browsing activity by connecting to a VPN virtual private network. Then, all transmitted information will be encrypted.

Protocols commonly used in VPN

The VPN protocol is essentially a collection of many protocols. Each protocol type has different functions:

Tunneling: A technique for transmitting data over many networks with different protocols. VPN’s basic function is to securely deliver packets from one point to another. To do that, all data packets need to be formatted so that only the client and server can understand. The sender of the data will format them according to Tunnelling so that the receiver can extract the information.

Encryption: Since Tunnelling has no protection, anyone can extract the data. Then you need to encrypt the transmission so that only the receiver can decrypt it.

Session management: A way to maintain sessions so that customers continue to communicate for a certain period of time.

Authentication: Is a way to confirm identity for more secure security.


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