vpn Archives - ITNotes

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VPN Kill Switch on Linux: A 180-Day Production Post-Mortem

April 26, 2026

A deep dive into building a production-grade VPN Kill Switch for Linux. Using iptables and WireGuard, this guide shows you how to prevent IP leaks with kernel-level enforcement.

Networking

OpenWrt on Your Home Router: Custom DNS, VPN, and QoS After 6 Months of Real Use

April 25, 2026

After six months running OpenWrt in production across three routers, this guide covers what actually works: encrypted custom DNS with stubby, WireGuard VPN setup, and SQM QoS with CAKE to eliminate bufferbloat. Practical commands, real-world results.

HomeLab

Self-Hosting Tailscale: A Guide to Deploying Headscale on Docker

April 21, 2026

Ditch the cloud and take control of your mesh VPN. This guide shows you how to deploy Headscale on Docker for a private, secure, and unlimited Tailscale network.

Networking

Site-to-Site VPN with StrongSwan IPsec IKEv2: A Production-Ready Linux Guide

April 18, 2026

Build a high-performance Site-to-Site VPN using StrongSwan on Linux. This guide covers IKEv2 configuration with swanctl, firewall tuning, and MSS clamping for maximum stability.

Networking

Build a Global Virtual LAN with ZeroTier: Secure P2P Connectivity Without Public IPs

April 13, 2026

Tired of fighting with CGNAT and complex VPN setups? This guide shows you how to use ZeroTier to create a secure, peer-to-peer virtual LAN that works anywhere in the world.

HomeLab

Ditch Port Forwarding: Build a Professional WireGuard VPN Gateway on OpenWrt

March 31, 2026

Stop exposing your HomeLab to hackers. This guide shows you how to build a high-speed WireGuard VPN Gateway on OpenWrt for secure, professional-grade remote access.

Networking

Tailscale: Simple Mesh VPN for Small Teams – A Practical Guide

March 26, 2026

Discover how Tailscale simplifies networking for small teams, providing secure and easy access to devices anywhere. This guide covers its mesh VPN approach, pros and cons, recommended setup, and a step-by-step implementation for seamless connectivity.

Networking

How to Set Up OpenVPN Server on Ubuntu: A Practical Guide

March 8, 2026

Setting up OpenVPN on Ubuntu means building a PKI, configuring server certificates, and generating per-client .ovpn files. This guide covers each step with real commands and the practical details that documentation usually leaves out.

Networking

How to Set Up WireGuard VPN Server on Linux (Fast & Secure)

March 5, 2026

WireGuard is the fastest, simplest way to run a self-hosted VPN server — far less painful than OpenVPN or IPsec. This guide walks through server setup, key generation, peer configuration, and firewall rules on Ubuntu Linux, from a clean install to a working tunnel.