How does a VPN work for dummies?

A popular service, many VPNs offer you data storage.

As it takes time and cost to keep track of it and this is where a VPN server could be a blessing. The service is offered from their own servers or with third party. If you choose to trust them to protect your sensitive information on the online and offline then, it could be a hassle. A VPN works by tunneling or 'encapsulating' traffic across public and private network connections. This makes it more difficult for someone intercepting your Internet connection to capture and decode your activity, since their ability to do so would be reduced to the weakest link in the line of connection. If you would like to find a VPN, then you should start with how does vpn work and this article will guide you through the procedure.

What is a VPN? The best way to look at the process of a VPN is to simply understand how encryption work on the Internet. If you want to access an online resource, then you could ask the browser to make sure that it uses secure HTTP to get to the website. The main thing to note here is that HTTPS is encryption at work. It is the encryption part where you should focus on. However, when you access a different site, you cannot access its content without first agreeing to the terms of usage or license agreement. The reason is that the service of the publisher has to decrypt your request. When you receive data after a long period of time, an anti-virus system can detect anomalies in this process and mark it as malware, but if you use VPN, then it would bypass your security software and you would receive data without further obstacles.

VPN stands for virtual private network. When a VPN works, this allows users to access the network as if they are on a trusted network on another part of the world. Many internet connections use a firewall to prevent unauthorized persons from accessing the connection. A firewall is set up by internet providers as a form of security check to protect against attacks aimed at breaching connections. You may also be offered a chance to share your computer's Internet connection through other Internet users around the world or you could be connected to another region with high Internet speed. The latter is used for surfing and download of large files, which the bandwidth offered by ISPs often comes short, whereas most home internet connections are not powerful.

Can someone know if I use VPN?

Do they show me as different address on phone or computer?

I used vpn at work but never at home.

First of all, I wouldn't recommend using a VPN while working at your workplace because you can easily be tracked on the internet even without their knowledge. So you'll have to make up your own mind.

If you want to access your VPS privately while at work or at your friend's house or if you want to secure your private traffic (eg from online banking etc.) then a VPN is the solution. It provides you with an extra layer of security which increases the trust in your online activities.

This way even when a hacker steals your data (via a network attack) or sniffs your traffic while sending data through your internet connection, it will be encrypted and there will be no way to decrypt it or read the data you sent over the internet. When working at home, your network is much more trusted and less likely to be snooped or intercepted. I don't think your ISP will see a difference if you connect to your network using VPN or directly. So I think it's all up to your need.

Can anyone see your VPN?

It's a fact.

More than a quarter of all global internet traffic travels through one of the estimated 3,000-plus private networks known as Virtual Private Network or VPNs. These systems allow users to browse the web anonymously, evade firewalls, and otherwise conduct business while on the move.

Of course, they can also be used by law enforcement to spy on someone. As a result, VPNs are in high demand.

But it's not always clear who is using which VPN or how that person can be tracked back. In our latest feature for Network World: Online Security, we're trying to answer some of these questions with a tool called the Onion Scope. The application works by sniffing your data as it passes through your VPN. If you're using a free or cheap service, it can identify your true IP address which is the Internet Protocol address from which you connect to the web as well as the IP address of the VPN provider.

For a more premium service, you can see what your computer looks like to the operator of the VPN you're using. The Onion Scope comes from the team at security vendor Volexity, which has also developed a tool to do the same thing, called vpnScope. Both can do most of this tracking while a VPN is running, though they work in different ways.

VpnScope, in particular, can monitor whether a VPN connection is being used, and it can track what traffic is passing through it. You don't have to be logged in to the VPN, and it can even tell when you're on Wi-Fi and when you're connected to the internet. It uses this information to provide you with a visual map showing where you are and what country you're in.

Onion Scope is based on the work of the same people, but it does the job in a different way. When it's turned on, your traffic passes through an artificial VPN, which makes your true IP address appear as the IP address of a network connected to the VPN provider. This doesn't necessarily provide the location of the VPN server you're using, but it's a good starting point for a much deeper analysis.