The Meaning Of VPN (virtual private network)

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The Meaning Of VPN (virtual private network)

VPN - is a way to make a network "private" and secure by using public networks such as the internet. VPN can send data between two computers that pass through a public network so as if it is connected point to point. The data is encapsulated (wrapped) with a header containing routing information to get a point to point connection so that the data can pass through the public network and can reach the end destination. Simply put, VPN connects smartphones, tablets, PCs to other computers (commonly called VPN Servers) in a place that is connected to the internet, and allows you to surf the internet using a computer internet network. So if the computer (server) is in a different country, it will be the country that you use when the internet tries to hit you through that connection and you can access something that you cannot access from your country by VPN.

Definition Of VPN

What is VPN (Virtual Private Network)? Understanding VPN is a connection between one network with another network in private (private) through a public network (internet). The following explains the meaning of each word on the Virtual Private Network :

  • Virtual: things that are not real or pseudo, in cyberspace/internet
  • Private: things that are private, not accessible to just anyone. To maintain the confidentiality of the public network all data will be encrypted
  • Network: the network of interconnected connections So, from the explanation above it can be concluded that the understanding of VPN is a connection or connection that occurs virtually on a particular network without any real encrypted connection.

In the old days, VPN (Virtual Private Network) was created to securely connect networks between office buildings and using office networks from home or other places. Whereas at the moment, VPN Online is already widely used by internet users around the world.The purpose? Of course to get a connection to the internet safely, privately (private), and can access a network remotely. Meanwhile, to get a private connection, the data sent must be encrypted first to maintain confidentiality so that packets caught when passing through the public network are not readable because they have to go through the decryption process. The process of data encapsulation is often called "tunnelling". You can access the office server through a VPN anywhere, whether it is at home or on the road safely even though you use internet network infrastructure in its use.

In the user's view, a VPN connection is a point to point connection between the user computer and the corporate server and data is sent over a "dedicated" network, even though this is not the case. Criteria that VPN must meet :

  • User Authentication VPNs must be able to clarify the identity of clients and limit user access rights according to their authority. VPNs are also required to be able to monitor client activities regarding the time, when, where and how long a client accesses the network and the types of resources it accesses.
  • Address Management VPNs must be able to list client addresses on the intranet and ensure that addresses remain confidential.
  • Data Encryption Data that passes through the network must be made so that it cannot be read by unauthorized parties or clients.
  • Key Management VPN must be able to create and update encryption keys for servers and clients.
  • Multiprotocol Support VPN must be able to handle various protocols in public networks such as IP, IPX and so on

VPN History

VPN was developed to build a network with wide reach through the internet network.Intranet has become an important component in a company today. Intranet in the company will develop following the development of the company. In other words, the larger a company is, the greater the intranet required. This problem will be more complex if the company has many branch offices spread across various cities with long distances. Whereas on the other hand all of these offices need a method to always be in touch, for example, to transfer and synchronize data they need a Free VPN. Initially, the intranet system was developed using a dedicated line system. This system offers high data transfer speeds but requires expensive investment. This system is not effective for middle to lower class companies and companies that are spread out in different areas.

The rapid development of intranets offers solutions for building an intranet using a public network (internet). On the other hand, the strength of industry also develops and demands the fulfilment of five needs on an intranet, namely :

  • Confidentiality, with the ability to scramble or encode messages along with insecure networks.
  • Access control, determine who is given access to a system or network, as what information and how much someone can receive.
  • Authentication, which is testing the identity of two companies that conduct transactions
  • Integrity, guarantee that files or messages do not change on the way.
  • Non-repudiation, which is to prevent two companies denying each other that they have sent or received files. This need is fully supported by the internet which is designed as an open network where users find it easy to transfer and share information.

Benefits Of Using VPN

The solution to this challenge is VPN (Virtual Private Network) technology. VPN utilizes internet network as an intranet media so that its coverage area becomes broad without a large investment. VPN Private brings technology that secures all virtual network traffic on the internet so that it provides a sense of security for all network users.

  • Security
  • Remote Control
  • Sharing Files
  • Online Anonymity
  • Unblock Sites
  • Change the IP address
  • Better performance
  • Reducing costs

    • After the VPN network was created, maintenance costs were very low. Moreover, if you choose a service provider, network settings and surveillance are no longer a problem.

    Risks If Not Using VPN

    The use of a VPN that is not wise, such as too often opening social networks, browsing, or surfing in cyberspace can cause internet addiction. It is true that by communicating through cyberspace, we can erase distance, so we can communicate with fellow internet users who are in very far away locations. The term is closer. There are several risks if you do not use VPN while surfing the internet. But don't let the internet make us communicate too often in cyberspace, to neglect communication in the real world, with people around us. Do not let the use of the internet be closer to the far, and keep them close.

    • Internet addiction
    • Pornography
    • Cruelty and sadism
    • Gambling
    • Fraud
    • Abduction
    • Hacking
    • Carding
    • Money laundry
    • Theft of personal data
    • Excess Information
    • Provocation / Defamation
    • Bullying
    • Bad for bodily health
    • Individualists
    • Wasteful
    • Lazy

      • Examples of Real Cases / Events Need for VPN

      Theft Of Password Files Or Customer Data

      In the case of VPN, there is a way to get an ID belonging to someone else, not infrequently a cracker tries to steal a password file from a system, then analyzes it. More than that, crackers in private or in a syndicate, try to steal confidential data of a company to be sold to opposing companies.

      Trap Program

      Trojan Horse (Trojan horse) is already known as one of the cracker techniques that is very effective and is often used in crimes on the Internet and therefore you need to use VPN. Cracker provides a free program, which has good features (many useful program functions) and is easy to use and user-friendly, but in the program, the cracker implants other programs that are not visible to the user. For example, programs for ID and password theft, theft of certain files and others.