Najib Dahech

Najib Dahech is the founder, sole author and editor of encapsulated.network. He is a communication specialist and independent privacy researcher based in Tunisia, with a National Bachelor's Degree in Communication from IPSI Manouba. He writes about VPN protocols, encryption and online privacy, working from primary sources: protocol specifications, audit reports, legal texts and research papers. How his articles are researched, checked and updated is set out in the Editorial Policy: https://encapsulated.network/editorial-policy/

What Is the Difference Between a VPN and Tor Browser

by
Two amber shields on a dark navy background with VS between them. The left shield contains a white onion cross-section icon representing Tor; the right shield contains a white closed padlock representing VPN

Last updated: September 22, 2026 · 23 min read A VPN removes your ISP’s visibility into where you are going. Your destinations are encrypted inside the tunnel, and the websites you visit see the VPN server’s IP instead of yours. But the VPN provider sits at the junction of both pieces of information: they know … Read more

WebRTC Leak: What It Is and How to Stop It

by
Coral shield with a white open padlock and a warning badge, representing a WebRTC IP leak bypassing VPN protection.

Last updated: June 1, 2026 · 36 min read You connected your VPN. The green light is on, your IP address has changed, and a quick check confirms the VPN server’s address is showing instead of yours. Then you run a WebRTC leak test and see your real, ISP-assigned IP address sitting in the results. … Read more

OpenVPN Explained: How the 25-Year-Old Protocol Still Wins

by
Electric Blue shield icon with a TLS security certificate overlapping its right side, on a dark navy background — featured image for the OpenVPN Explained article on encapsulated.network.

Last updated: July 10, 2026 · 35 min read OpenVPN has been in production since 2001 — longer than WireGuard has existed and longer than most of today’s internet infrastructure. Most guides treat it as the slow fallback you switch to when something else fails. This one explains how it actually works. TL;DR OpenVPN is … Read more

WireGuard Explained: How the Modern VPN Protocol Works

by
WireGuard VPN protocol featured image showing a coral shield with a padlock and two Curve25519 key icons representing WireGuard's public key pair authentication model on a dark navy background.

Last updated: July 10, 2026 · 31 min read WireGuard is a VPN protocol — a set of cryptographic rules that governs how two computers build an authenticated, encrypted tunnel between them — implemented as a kernel module in Linux and as native apps on Windows, macOS, iOS, and Android. Every VPN review says the … Read more

What Is IKEv2/IPsec? The Protocol Built for Mobile

by
Flat illustration of a teal shield with a white padlock on a dark navy background, with a Wi-Fi symbol and cellular tower icon overlapping the lower-right corner of the shield, representing IKEv2's MOBIKE feature keeping a VPN connected across network transitions.

Last updated: October 20, 2026 · 22 min read You opened your VPN app, went into settings, and found a list of protocols — WireGuard, OpenVPN, IKEv2. Maybe you picked one without quite knowing what it meant. Maybe your app picked it for you. Either way, IKEv2 is quietly handling more mobile VPN connections than … Read more

What Is a VPN? Meaning, Uses, and What It Can’t Do

by
Dark navy featured image for the article "What Is a VPN?" showing a globe with Electric Blue grid lines representing the internet, overlapped by a solid Electric Blue shield with a white padlock icon, representing VPN protection of internet traffic.

Last updated: September 13, 2026 · 26 min read A VPN, or virtual private network, is a service that encrypts your device’s internet traffic and routes it through a server operated by the VPN provider before that traffic reaches its destination. Your internet provider sees only that encrypted traffic is going to the VPN server; … Read more

How to Set Up a VPN on a Firestick: The Complete 2026 Guide

by
Flat illustration of a white line-art Fire TV Stick device on a dark navy background, partially overlapped by a large coral shield containing a white padlock icon, with coral signal arc lines above — representing a VPN protecting an Amazon Firestick streaming device.

Last updated: May 24, 2026 · 23 min read Amazon Fire TV Sticks have run two distinct operating systems since late 2025. Fire OS — Android-based — powers most sticks currently in circulation. Vega OS — a newer, Linux-based platform developed by Amazon — ships on the Fire TV Stick 4K Select (2025) and the … Read more

What Is a No-Log VPN? (How to Verify the Claim)

by
Flat illustration on a dark navy background showing a large electric blue shield icon with a white padlock at its centre, overlapped at the lower right by a flat electric blue magnifying glass. The composition represents scrutiny and verification of a VPN no-log privacy claim.

Last updated: September 6, 2026 · 24 min read A no-log VPN is a provider that does not collect or store records of your online activity: your browsing history, the IP addresses you connect to, your DNS queries, or the files you download. The credible version of that commitment has three parts: zero activity logs, … Read more

How to Set Up a VPN on a Router: The Complete 2026 Guide

by
Flat illustration of a modern home Wi-Fi router on a dark navy background with a teal shield and padlock icon overlapping the lower-right corner, representing a VPN-protected home network.

Last updated: May 28, 2026 · 28 min read Most VPN guides stop at your phone or laptop. Install the app, connect, done. A router VPN takes a different approach: one configuration protects every device on your network simultaneously — including the ones that cannot run a VPN app at all. Your smart TV. Your … Read more