Mediawiki attacked

hi folks, I got a mediwiki set up here on dreamhost about three weeks ago. Am now swamped in ‘chinese’ spam (ie spurious registrations and tons of new pages full of junk). Have followed mediwiki guides as best i can for stopping this stuff, but just yesterday discovered a whole bunch of new pages and users (mostly in chinese) and cannot even log in anymore. I can’t see any way to fix this other than flushing the entire mediawiki and starting again. Any advice before I do this? Thanks, Matt

The DH wiki has had it’s share of this, and there are some things you can do that will help.

What, exactly have you implemented in the way of spam control mechanisms?