piete brooks added keys.cardboard.net to subkeys.pgp.net rotation yesterday.
unfortunately, this interacted with some apache rewrite magic im using - in a bad way. to resolve this, ive moved
keys.cardboard.net to its own IP (it was sharing with box.cardboard.net). anyone peering with keys.cardboard.net that
was referring to it as box.cardboard.net will need to update their membership file.