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Basics

What is DNS (Domain Name System) and what does a DNS server do?

Who remembers phone books made of paper? They are mostly obsolete now but you used it to find a phone number of a name. DNS or Domain Name System does basically the same thing. The heavy lifting is one by the so-called DNS servers. How does DNS work? Why IP addresses are important and why…

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Basics

What is an IP address and why is it important for VPN?

Let’s start the explanation with an analogy. You must live somewhere and have an address. If you order a brand-new Raspberry Pi (to build a VPN router for example) the package can be delivered according to your address. In a computer network like the Internet, data packets are delivered. In order for the server, service…

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Basics

What Is A VPN Kill Switch? Why Do I Need It? To protect your privacy!

Have you ever read that VPN providers advertise they have a kill switch? Have you wondered what that is? A kill switch is indeed some sort of emergency stop switch and it protects your privacy and strengthens your security. A kill switch cuts your Internet connection if necessary Let’s explain this simple: If the VPN…

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Basics

What is the cheapest VPN? That’s the wrong question …

If you ask yourself: What is the cheapest VPN? — stop, think and ask again. Because that is the wrong question! The right question however must be: What is the cheapest VPN that is trustworthy! Surfshark – cheapest, trustworthy VPN!* If you are very picky you could actually start an argument about cheap and affordable.…

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Basics

What is a VPN protocol? – OpenVPN, WireGuard, SSTP, PPTP, IPsec, L2TP, IKEv2

I have already explained to you what a VPN is and how it can protect you from data hijackers, snoopers, prying eyes and other cyberthreats from the Internet. Even geoblocking and censorship can be handled. We also know that a VPN is a logical connection between two devices. So-called VPN protocols such as OpenVPN are…

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Basics

VPN or Virtual Private Network: What is it and why do I need one?

A VPN or Virtual Private Network is a direct connection between two networks via a public connection such as the Internet. In order for me to explain to you exactly how a VPN works, a few short and simple basics are necessary. Don’t worry, I will keep it understandable. How do I connect to the…