What Is a VPN, Is it Really Good for Privacy, How to Get One for Free?

VPN Router Full
Dong Ngo | Dong Knows Tech Many home routers can work as a personal VPN server.

You might have heard of VPNs from some commercials. Hell, you might be even be using one right now and want to brag about how secure your network is. So what is VPN exactly? Is it all that good?

If you have these questions or, on the other hand, haven’t even heard of a VPN at all, you’re reading the right post. You’ll find here all the necessary information on this type of network connection for travelers — with the emphasis on travelers — and how to get one for yourself, for free.

Most importantly, you’ll learn when you want to use a VPN and when not to. A quick hint: VPN is not synonymous with security or privacy, or the lack thereof.

Dong’s note: I first published this post on April 1, 2019, and updated it on August 31, 2020, to add additional relevant and important information on the use of a VPN.

What is a VPN

VPN is short for the virtual private network. It is a method to create a virtual connection within a physical network structure to make a device at one geophysical location be part of a system at another.

Wikipedia A typical VPN connection.

Specifically, you can be thousands of miles away from home (or office), but the device you’re using in front of you, via a VPN, can be part of your home or business network. Thus, in effect, it’s like the device (and, therefore, you) were still at home.

If that sounds odd, that’s because VPN is not normal. It’s for specific needs. So the question is, why do you want to be part of this complicated shenanigans? Well, that brings us to the good things of a VPN, the reasons why we’d want one at all.

Benefits of using a VPN: Being part of a remote network

The main, and possibly only advantage of using a VPN is the fact you can “spoof” your device’s online identity — you can hide it.

Hide from whom you might wonder. Well, from the network the device’s physically part of in real-time, or from other parties on the Internet (like a website, or a streaming service), it’s accessing. To the former, it (kind of) doesn’t exist, and to the latter, it appears to exist somewhere else.

So, for example, you’re now at an airport, and your device, say, a laptop, is connecting to free Wi-Fi. On top of that, it’s also connected to your home (or office) VPN, then the following will be true:

  • Privacy and security: Your device, for the most part, is invisible to the local network at the airport. Specifically, the computer of the guy sitting next to you will not “see” yours, nor will yours his. Whatever you do online is, for the most part, unknown to any parties at the airport.
  • Location masking: To the Internet as a whole, your laptop will appear to be at the location of the VPN server, wherever it is. As a result, among other things, you can access services available to the server’s locale. For example, you can be in Europe, connecting to a VPN server in the U.S, and watch Netflix shows accessible only to the U.S. audience.
  • Working remotely: When traveling, a VPN allows you to access your home/office network as though you were there.

So, in short, using a VPN, a remote device becomes part of the network at the VPN server’s location, no matter the physical distance between them.

Disadvantages of using a VPN: Being part of a remote network

Nope, it wasn’t a typo. The disadvantages of a VPN are exactly where its advantages are. A VPN is a double-edged sword. Having to connect to to a third party before anything else means a couple of things:

  • Slow speed, high latency: Since all Internet traffic goes through a remote server, the connection is now slower and with higher latency. Specifically, the download speed at the remote device will be the upload speed at the server’s end, at best. (It’s commonplace that the upload speed of a broadband connection is much slower than the download one.) In short, your device’s Internet speed and latency with a VPN connection are always worse than they are when without.
  • Privacy risk: The owner of the VPN server has access to all of your VPN-connected device’s Internet traffic, and possibly also the traffic of your local network. Keep this in mind before you opt for a third-party VPN service.
  • Extra work or cost: You have to set up a VPN server and maintain it or pay for a service.
  • Isolation: Depending on the configuration, the device might not be able to access certain local services since it appears to be part of a remote network. For example, if a device is in the U.S but connects to a VPN server in the U.K, it’ll reach the U.K market when you want to use Netflix. The same goes for online stores, etc.

The botoom line of VPN and when you should use it

So as you might have noticed. Using a VPN has nothing to do with security or privacy. It’s just a way to make you look like you’re somewhere else, and all that implies.

Assumptions about a VPN

The privacy and security notion of using a VPN is a big assumption that generally includes:

  1. The local network you’re using is not safe. That’s often true when you use an unknown open free Wi-Fi network, though not always the case.
  2. The remote network (where the VPN server is) is safe. That’s likely true when you VPN into a home (or office) network, though also not always the case.
  3. The owner of a VPN service always means well, which is almost always not true when you use a VPN service.

This assumption is the selling point third-party VPN providers often use to coerce you into thinking that you need to pay for a VPN service.

Well, read those three points above again and, once again, keep this in mind:

The owner of the VPN server has access to all of your device’s traffic. If you get a third-party VPN service, not only that costs you a monthly fee, you’ll also give them access to your online activities.

The business of collecting user information via a VPN connection is so lucrative that many big companies give you VPN for free. That brings us to the next important part: When to use a VPN and when not to.

When to use a VPN

Again, a VPN allows for being part of a remote network, so the only time you need one is when you’re not physically there. Most of the time, that means when you’re traveling or work from home.

In the former, you want to be isolated from the sketchy network you’re using, and in the latter, you want to be able to access your office’s recourses.

Another situation where you might want a VPN is when you need to access a service that’s not available at your locale. For example, if you’re in China and want to access Facebook, then a VPN (located outside of China) will help.

When not to use a VPN

Generally, if you don’t need to hide your identity or access some remote services/resources, there’s no need to use a VPN. Using one in this case only makes things worse.

I’ve seen a lot of folks having a VPN installed on their home computer for “security purposes.” That’s completely necessary. In fact, you are doing so almost certainly at the expense of your privacy, especially when it’s a third-party VPN service.

Extra: Virtual Private Network (VPN) vs. Domain Name System (DNS)

While seemingly unrelated, you can’t set up a VPN server (or any network for that matter) without at least getting DNS involved.

READ NOW:  How to Change Your DNS Server and Have Better Internet

DNS works like a directory service that identifies and points a device to the website you want to access. After that, your device will interact with the site directly, independently from the DNS server.

A VPN, on the other hand, routes all of your device’s traffic through the VPN server at all times. Furthermore, a VPN server also uses a DNS server of its own. So if you use a VPN, you’ll likely use the DNS setting of the VPN’s owner.

That said, a remote device connecting to a VPN network will use the DNS server of that network. As you can imagine, whoever the VPN server can manage all aspects of your online activities.

Again, for this reason, Internet giants like Google, Apple, Cloudflare, and so on, are all in the business of offering free VPN or DNS services. In this case, take free with a grain of salt since information about your connection — even when gleaned anonymously — is quite valuable.

Common ways to get the benefits of VPN

There are a few ways to get a VPN server. You can subscribe to a paid service, use a free one, or you set one up on your own.

Using a paid VPN service

Using a paid service gives you the ease of use as well flexibility — you can use it for both mobile and regular computers. A paid service tends to promise to deliver fast performance, though that depends on many other factors like the actual location of the remote device.

The downside is, well, it’s not free. And, if a VPN service itself is hacked, which has happened, its privacy protection aspect is canceled out. And you only find out about this after the fact. Also, again, keep in mind that you’re giving away your online privacy.

That said, I generally don’t recommend buying a VPN subscription — mostly because you can get one for free. The truth is, you’re already giving away valuable personal information, why should you pay for it?

Using a free VPN service

There are quite a few free ways to get a VPN for mobile users. For example, if you use Google Fi phone service, a VPN is included for free. However, the best free VPN is that from Cloudflare, called WARP.

Touted as the “VPN for those who don’t know what VPN stands for,” WARP is easy to use. All you need is to install the mobile app on your device and choose to turn VPN on, and that is it. WARP was initially introduced back in April 2018, a DNS app, giving users the option to use Cloudflare’s DNS address as their own. A year later, Cloudflare added the VPN function.

Dong Ngo | Dong Knows Tech You can get Cloudflare’s WARP VPN set up on your mobile device via a few taps.

WARP is free to use, and Cloudflare promises that it will not only make your device more secure but can also access the Internet faster. (There’s also a paid version called WARP+ that promises to be even better speed.) In the future, Warp will work on regular desktop computers, but for now, it’s only available to mobile devices.

By the way, Cloudflare promises to respect WARP users’ privacy. Here are what it says in verbatim on this matter:

  • “1. We don’t write user-identifiable log data to disk;
  • 2. We will never sell your browsing data or use it in any way to target you with advertising data;
  • 3. Don’t need to provide any personal information — not your name, phone number, or email address — to use the App with WARP; and
  • 4. We will regularly hire outside auditors to ensure we’re living up to these promises.”

If that’s not reassuring enough, you should consider making your own VPN server.

How to set up a VPN using a supported router

VPN is one of the most common advanced features for home Wi-Fi routers released in the past ten years or so. For example, almost all routers from Asus, Netgear, D-Link, TP-Link, and others have this feature built-in.

Dong Ngo | Dong Knows Tech The VPN interface of an Asus Wi-Fi router.

Generally, to use a router’s VPN, you first need to set up Dynamic DNS, which I detailed in this post.

READ NOW:  What is Dynamic DNS and How to Set Up Yours

After that, using the router’s web interface, turn on the VPN feature, and create accounts for this feature. Depending on the model, a home router can handle three to 30 VPN clients at the same time.

By the way, you’ll see three types of VPN servers: PPTP, OpenVPN, and IPSec VPN. These are different types of VPN protocols, with the PPTP being the most supported — you don’t need to install extra software to use it in most platforms — and, therefore, suitable for home users.

Now at the remote device, set up the VPN connection using the information you’ve created, including the Dynamic DNS address, VPN protocol and username, and password. All platforms — Windows, macOS, iOS, and Android — have a VPN section that supports standard VPN protocols.

Extra: Ubiquiti TelePort VPN

If you happen to use an AmpliFi Wi-Fi router from Ubiquiti, including the AmpliFi HD (make sure you use the latest firmware) or the Alien, you have another option for a personal VPN, called Teleport.

Dong Ngo | Dong Knows Tech Ubiquiti’s Teleport is a sleek and dead easy to use VPN feature for mobile devices.

Teleport only works with mobile devices, and it’s super easy to use. First, you create a Teleport Code using the AmpliFi mobile app. Then, on a mobile device (or up to 10 of them), run the Teleport app, and enter that code. And that’s it, now that device will connect to the Internet using a VPN that links to the AmpliFi router.

The takeaway

Considering how easy it is to have a VPN, it’s a good idea that you use one when traveling. It’s best to use your own VPN server (or one of your office), but when necessary, it’s also OK to use a third-party service. In this case, just don’t use it all the time, but only when applicable.

The rule of thumb is when you use a local network of which the security you’re not sure, like one at an airport or a coffee shop, it’s a good idea to use a VPN. Or when you need to access something that’s not available to your current physical locale.

On the other hand, VPN sure is not necessary when you’re already in a safe zone, like a home or office network. The most important is that VPN is not synonymous with security or privacy, and using one willy-nilly can cause adverse privacy and security effects.

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4 thoughts on “What Is a VPN, Is it Really Good for Privacy, How to Get One for Free?”

  1. In my view, creating your own vpn requires skilled staff to set up, and it has some disadvantages… and you won’t be able to unblock web content as you route traffic through your local IP / all paid providers offers a huge variety of servers from all over the world. So all in all I would prefer going with verified providers.

  2. I can’t scroll on the page… because “content copy disabled” even tho I can copy the content on my non-jailbroken phone using Safari 🤨

    • Thanks for letting me know. I’ll fix that. By the way, you can scroll if you rest your finger on the text part (and not a photo).


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