Is there a system which transfers DNS queries over an unprotected HTTP connection?
No, it's a brain burp on our end. We meant unprotected DNS queries, not HTTP. HTTP on the mind. It's fixed.
Don't forget to email corrections@theregister.co.uk if you see anything wrong, and we'll fix it up right away. It's hard to spot requests for clarifications buried in the comments hours after publication: there's so much for us to go through while we're trying to get articles out the door.
C.