René Welches

TECH NOTES TO MYSELF

Real IPs for k3s: MetalLB, VLANs, and Why I Had to Buy a Switch

A k3s LoadBalancer turned into a network rebuild — managed switch, VLANs, OPNsense, and MetalLB in L2 mode

How I gave my Proxmox k3s cluster a real LoadBalancer with MetalLB — and why getting there meant buying a managed switch, segmenting the network into VLANs, and working around the limits of Google Nest WiFi.

Posted by Rene Welches on Friday, June 12, 2026
Last Modified on Sunday, June 14, 2026

Fixing Twingate DNS Resolution with AdGuard Home

Moving connectors to separate hosts fixed my DNS resolution issues

How to fix Twingate DNS resolution issues when using the Home Assistant connector with AdGuard Home by moving connectors to separate Proxmox hosts.

Posted by Rene Welches on Thursday, January 29, 2026

Secure Home Network Access with Twingate

Alternative setup to Pi-Hole and Pi-VPN with Twingate, Home Assistant and AdGuard Home

Modern zero-trust VPN setup using Twingate for secure home network access, with AdGuard Home for local DNS resolution. No port forwarding or DDNS required - a simpler alternative to Pi-Hole and PiVPN.

Posted by Rene Welches on Thursday, November 13, 2025
Last Modified on Thursday, January 29, 2026