I think a closed wiki can have virtually any subdomain
without creating any
attention. So how about "cooker.mediawiki.org" and housing it on Wikimedia
servers? Maybe Wikimedia Deutschland and Wikimedia CH have some servers ready
Sounds good to me, would be good if somebody would set that up. In the
meantime I have an import of wikiversity running, on the old
baach.de/phase3 address. This is an old server with limited traffic, so
it better stays under the radar :-).