I'm doing the same as Well. But on one of my own routers. With a key that I know. Doing it with John, brute force way. Got a Proxmox PC, Running The home CCTV, and Nas. So it's got a little spare horsepower, for my own fun. :).
Rick Astley just been on BBC F1 forum, when the bbc team asked him what this rick rolling. LOL mint. I did'nt have it recorded but I know where to find it.
I currently run Two Pc's One a CCTV, the other Freenas. 24/7 however these are old P4 class PC's and are drink the juice and taking up space. Proxmox ??? should be fine using these, and also other Vm's when needed. ??? However does Proxmox wind the CPU/Power usage down when no needed ?
Do the P4 Northwood support this. ? mine Slowing it's self down, when load is low ( Yep I know it ment to do that). Reason why I'am asking because the FreeNas server is above a Hot water tank. BTW not the best in air flow with door shut and Temp above the tank around 25degC, Show it should'nt be thottle down due to heat IMO.