Do you know what a VPN is? The definition of VPN is an attempt to extend a private network over a public network and allow users to send and receive data over a public network as my computing devices were no risk directly connect connected to the private network.
Or according to its abbreviation VPN or Virtual Private Network is a virtual or virtual private connection network.
So, we can conclude that a VPN is a virtual connection on a particular network and there is no encrypted real connection.
The technology was developed with the aim of enabling users who are not wired and branch offices to access applications and other resources.
Private network connections are established using a multi-layered encrypted Tunnelling protocol as well as authentication methods such as entering passwords or certificates to ensure their security.
In addition, the function of a VPN is for internet users who want to secure their personal identity in order to remain anonymous on the internet.
As we know there are some websites that cannot be opened like Reddit in India. However, users can still open it through the VPN.
A VPN is created by establishing a virtual point-to-point connection through the use of a dedicated circuit with a Tunnelling protocol on an existing network. VPN itself has its own types. Here are the types of VPN.
VPN Is (Types of VPN)
Basically, a VPN can be characterized by remote access by connecting a computer to a network.
VPNs can also be used to interconnect the same two networks over a different network. For example: 2 IPv6 networks over an IPv4 network.
VPN systems can be classified by:
Tunnelling protocol used to penetrate traffic.
The location of the tunnel termination point, for example: on the subscriber edge to the network-provide edge.
Connection topology types such as site-to-site or network-to-network.
The level of security provided.
The OSI layer they assign to connected networks is like Layer 2 or Layer 3 circuit network connectivity.
Multiple concurrent connections.
In addition, there are some general VPN functions, the following are the functions:
VPN Is (VPN Functions)
As we mentioned earlier that a VPN has a function, one of which is to access a website that is closed in a country, for example: Reddit in Indonesia. VPN also has other functions, among others.
1. Maintain Data Confidentiality (Confidentially)
One of the uses of a VPN is to maintain the confidentiality of data and information so that it is not misused by others.
With the development of internet technology, users should be more vigilant because using public networks such as in cafes or in crowded places has the potential for danger, especially for you business people who have important documents. Therefore, the use of a VPN can secure the entry and exit of data by using encryption methods.
2. Data Integrity (Data Integrity)
In addition to maintaining data confidentiality, another function of a VPN is to save internet user data from irresponsible people.
The VPN application will guarantee that the data transmission process is received in accordance with the user's request without any data manipulation.
3. Source Authentication
The last function of a VPN is being able to authenticate the source of the data that will be received. The VPN application will ensure that incoming data is correct from the source.
In addition, the VPN application also has the use of preventing viruses by checking the source of the data received.
A VPN Is (How a VPN Works)
After you know what a VPN is or the function of a VPN, maybe some of you are wondering why a VPN application can prevent data misuse, in this chapter we will discuss how a VPN works
Basically, a VPN creates a network within a network which is also known as tunnelling. This Tunnelling has the aim of creating a private connection path that utilizes other networks.
Then when accessing a website, all data traffic requested by the website will be accessed through the ISP (Internet Service Provider) server. Well, here the VPN is in charge of encrypting data so that the VPN server is able to find out user data traffic.
Conclusion
It can be concluded that using a VPN can protect your data from irresponsible people. Especially for those of you who often use Wi-Fi cafes that you don't know who is in the café.
However, behind all its uses, VPNs are also often misused. Many people use VPN to access prohibited content and also to use VPN we need more attention in setting security system.
So this LETSMODAPPS official article about VPN is. How? May be useful!
