Quick tip for anyone like me who's foolish enough to cram Exim4, Spamassasin, Apache with Wordpress running on it, and a pile of other stuff on to a server with 256MB of RAM: Install one of the Wordpress caching plugins. Otherwise, your server is liable to start swapping frantically if you get a dozen or so hits on one of the Wordpress-powered sites.

Indeed, it was possible to nuke jasper just by mashing the F5 key whilst sitting on the front page of this site.