In this quick guide, I’ll show you how to use Mullvad port forwarding and OPNsense to create a WireGuard VPN “tunnel-inside-a-tunnel” configuration, to be able to connect to your home network from the outside. It’s pretty nifty because you won’t have to expose your public IP address. This time, I’ll give you more of a high-level overview and reference the relevant documentation instead of a detailed step-by-step guide.

For storage in my homelab, I use TrueNAS. Additionally, I run a couple of apps on top of it as jails. For over a year, I’ve been using an uninterruptible power supply (UPS) to protect my TrueNAS from possible data loss in case of a power failure. What I’ve been missing throughout that time are the monitoring and management tools to shut down everything gracefully when the battery of the UPS runs low. In the event of a power outage lasting longer than 30 minutes, the battery would run out of juice. Everything attached to the UPS would be powered off immediately, and data loss might occur. Luckily I live in an area where power outages rarely happen. I also have backups I could restore if my TrueNAS data gets corrupted. Still, doing this right and configuring Network UPS Tools (NUT) to orchestrate shutdowns has been on my to-do list for way too long. It’s time to tackle the issue!