My server is undergoing what appears to be a comment-spam variety DOS attack. I’ve turned off comments and just noticed that MT 3 appears to have no global on-off switch for trackback. I don’t have time to do the hard work this morning (I’m already 2 hours late for work). More info as I learn it.
UPDATE: it is a DDOS, probably accidental as the requests are only about 4 times a minute, against the MT trackback cgi. I yanked both the comments script and the trackback script and that seems to have helped. Off to work (3 hours late, now).