Network tutorial - IT technology blog

Headscale: Self-Host Your Own Tailscale Mesh VPN Control Plane

Headscale is an open-source implementation of the Tailscale control plane that lets you self-host your entire mesh VPN management infrastructure on your own server. This guide shares hands-on experience from six months of running it in production with ~30 nodes, covering installation, configuration, and debugging NAT traversal issues.
Security tutorial - IT technology blog

WireGuard VPN on Ubuntu Server: Complete Setup and Configuration from A to Z

WireGuard runs directly in the Linux kernel, delivering significantly better performance than OpenVPN (real-world benchmarks: 100–200Mbps vs nearly 1Gbps) with far simpler configuration. This guide walks through each step in practice: installation, key pair generation, server and client configuration on Ubuntu Server — plus troubleshooting for common issues.