How to rotate log file ?

Hi All, I have installae qmail + qmail-scanner, right now my qmail-queue.log is getting bigger.. I'm affraid it's gonna get so big like couple of megs in a week. How can i run log rotate so it will be like qmail-queue.log.tar.gz.1 and so on.. regards, -- Arie Reynaldi Zanahar reymanx at gmail.com http://www.reynaldi.or.id