Well, the original post (as in the image) is about locking yourself out of a remote server by changing a firewall rule, thus needing to drive to the server to access it locally.
By using wireguard to tunnel into the router, you can remotely enter the LAN, thus bypassing the firewall, as if you were accessing the server locally.
Please forgive the ignorance here. What are you trying to do? I thought you were trying to reboot an offline server. I’m probably just confused!
Well, the original post (as in the image) is about locking yourself out of a remote server by changing a firewall rule, thus needing to drive to the server to access it locally.
By using wireguard to tunnel into the router, you can remotely enter the LAN, thus bypassing the firewall, as if you were accessing the server locally.