The only way to be safe online is by establishing a secure connection. The most secure form of this is a tunnel, which can be incredibly selective about what traffic goes through it. But what is a VPN tunnel, and how does it work?
In this article, we will answer both questions so you won’t need to wonder anymore.
A VPN tunnel is an encrypted connection between you and an external source. To access data from the tunnel, you need to access the cipher (an algorithm that encrypts the data) or the sender. In a VPN tunnel, even the receiver doesn’t get the original data in its pure form.
Think of a literal train tunnel. The train tunnel isn’t built to handle anything that isn’t a train. So if you put a car in it, that wouldn’t make sense. Hackers (like the car) would get crushed in an attempt to get the data, often wasting time and resources. But with (typically) less messy results.
Even if you have the right train to carry the data, there are only one or two ways to enter the tunnel. If a train were to try and come through the wall, the damage would be catastrophic. There’s no way this could happen in a data sense; tunnels don’t usually have intersections.
This is your train’s private route to whatever part of the internet you want. So in a sense, having a VPN is like having a private train lead you to whatever part of the internet you wish.
As with many VPN tunnels, your VPN client is the source of your tunnel creation. So it works through these steps:
In this case, it is best to think of your tunnel as having back and forth continuous traffic. This traffic represents a series of requests and responses. However, the series of sedans that represent your traffic might be disguised as a military convoy. This represents encryption.
Encryption is when the data from your VPN tunnel is behind a cipher. As mentioned earlier, this is an algorithm that blends your data into a random set of gibberish. It is unrecognizable but meant to be translated (somewhat) once it reaches the other side.
Encryption lets you expose only the necessary data. So instead of people seeing the bumper stickers on your original sedans that inexplicably tell people where you live, they see a fake version of that. Sharing unnecessary data is no longer a problem, thanks to encryption.
Of course, encryption isn’t as helpful if you have to log in and create an account. Imagine this to be a checkpoint using our traffic analogy. The difference is that some of these checkpoints are less invasive. You can enter an email not connected to your data with these logins. These checkpoints might ask, “what are you doing here?”
Other checkpoints are not so nice, but you can also provide false information to them. Providing fake information online is typically less risky. However, you might run into complications with this phony information if you have to make an online payment. I don’t have a tunnel-based analogy for this one.
To find out more about encryption, you need to know more about protocols.
To test your VPN tunnel, you must ping your IP address. To do this, you have a few different options:
VPN protocols have combined suites of information on how a tunnel is made and what encryption is used. These protocols provide information to help VPN clients establish secure connections. Here’s a quick roundup of each protocol:
While the tunnel analogy is somewhat lost here, you get the idea. Some tunnels (protocols) are better than others. Going with the most trusted options is often your best bet.
However, if you need to get on less established tracks, you can be a trailblazer in your group. WireGuard, for example, makes some security-conscious people nervous. However, it has been proven in several tests.
Split tunneling is a unique VPN feature that allows you to localize specific apps or programs. For example, if you’d like Netflix to be in Europe while all of your other apps are in the Netherlands, you can do that.
Going back to our tunnel-based analogy, think of a train switching station. In a switching station, a train stops to be directed to different locations. The data (train) leads to the correct area with this station.
Not all tunnels lead to the same destination, meaning your VPN client sorts out what tunnel goes where. Split tunneling gives you two options, where the “switch” is simultaneous.
So, for example, if you were to use both the website and the app separately but split tunnel for an app, you would have two tunnels leading to the same destination. However, if your web browser was elsewhere, this is two tunnels to two different spots from the same source.
Split tunneling still relies on the same VPN protocol you have by default. This is because encryption still occurs to make the destination believe that you come from where they are at. So despite having a train coming from the UAE, your train might be disguised for that local European location.
Your VPN tunneling protocol is the last line of defense between you and the other side. Picking the best tunnel is paramount to remain secure. So your VPN tunnel has good encryption, ensure you get The Fast VPN. The Fast VPN has military-grade encryption that can secure your connections.
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