ELI5: vpn

medium confidence

March 28, 2026

// explanation

// eli5A VPN is like a secret tunnel for your internet. When you use the internet normally, it's like sending postcards through the mail—anyone handling them can read what's written on them. A VPN wraps your internet activity in an invisible locked box before it travels, so no one can see what you're doing [1]. It also hides your home address (IP address) and shows a different one instead [3][5].

// sources

[1]Why is a VPN "safer" on public networks? No really...why - Reddit

Jun 10, 2024 ... Using VPN you can define strong encryption for the connection and because TLS will move inside the tunnel, the weak ciphers won't matter as much ...

[2]Configure pfSense as a VPN Concentrator? - Netgate Forum

Jan 16, 2018 ... Yes pfsense can be a vpn server for road warriors, or a client to different vpn services. Or sure you can setup site to site vpn services between your ...

[3]So many sites now detect a vpn and refuse to function - Reddit

Nov 28, 2024 ... It's true that using a known VPN server can be an easy way to get flagged. Your IP address is a dead giveaway. But even setting up your own private VPN might ...

[4]How does Facebook know my location when I'm using a VPN?

Jan 25, 2025 ... A VPN only hides the location of your ISP and local server, by inserting their server between you and the site. A VPN does nothing about Geolocation.

[5]if i use a VPN at work, can the IT dept see what im doing? - Reddit

Aug 5, 2018 ... Yes, they can see you are connected to only one specific IP. He can figure out that you are using a VPN. But he can't see what you are doing. That beats the ...

[6]What Is a VPN and How Does It Work? (Explained for Beginners – 2026 Guide)video

Video by vpnMentor

[7]Should you use a VPN? | VPN explainedvideo

Video by Cybernews

[8]What is a VPN? Explained in 90 seconds | ExpressVPNvideo

Video by ExpressVPN

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