Spare server for experiments
 

What would you do if you had a spare server for a month or two?
Okay, I know. Many of you have several servers. I only have one and will have access to another server for some time.
Give me some suggestions of what I could do with the spare capacity. :)

build a P2P torrent tracker

you could host sites with it

Install a smtp relay that accept *.* and leave the firewall open

As a temp server?... Not much accept as a quick testing environment for new sites your planing to host on your permanent server

Thanks for the hint. I could actually experiment with that.
Maybe try to set up a private tracker.

Yeah, but in one or two months, I would loose all of them.

That sounds as if it would cost me a lot of bandwidth. I still have to pay for overages. :)