VPN stands for Virtual Private Network, which basically means it is a private network that is connected securely via the Internet (virtualllyyyyyy). It works via this mode called Tunneling to create the private network. Before you create a VPN, you have to have a NAS (Network Access Server), so that users from the other -places are able to access the internal network of the organization. There are two types of VPN, which is the site to site and remote access.
Site to Site VPN: In Site to Site VPN, users are able to connect to each other even though they are in separate buildings, thanks to the site-to-site connection. Just site to site VPN alone, there are two types, namely the Extranet-based and Intranet-based. The concept is actually very simple - Extranet-based is for connecting two different companies, while intranet-based is for connecting two different departments in the same company. In extranet-based site to site VPN, the two different companies will not be able to access each other's internal network.
The diagram above illustrates how the site-to-site VPN works.
Next, remote access VPN: Imagine you are at home and want to access to your company's internal network, but you cannot really do that since it is the company's Internal network. This is where remote access VPN steps in. Through this VPN, it creates a connection between you and the company's network, so that you will able to access it securely through the Internet.
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The diagram above illustrates how remote-access VPN works.
Yo LUKEEEEEEEEEEEEEEEEEEEEEEEE
ReplyDeleteI am weijie. First, i will like to say TOMORROW GT EXAM T_T kk nvm. so nice post with the two pictures to illustrate the vpn. Nice intro as well. ok then, good luck for the exam tmr and jyjy~~
Hi Luke,
ReplyDeletei've read your post on VPNs & i think it's really comprehensive. you've provided us with adequate explanations as well as the incorporation of diagrams. Moreover, the explanation are straight to the point and in bullets, making it easier to ocmpare the difference.
Well done, :)
aloysiusT
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Hi, luke. Adi here.
ReplyDeleteThis post is very informative. I like that you used pictures to help readers understand the subject better. Your explanations are also simple and easy to understand. Good Work.
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