[Zope] ZServer logs?

Hi all. The following question probably qualifies as "unbearably simple", but I've been up for far too many hours, and I just can't find it: does the ZServer keep a logfile, and if so, where? I'm having problems keeping the ZServer on http://www.oswg.org:8080/oswg going...it just stops working sporadically, and without log files I'm at a loss. Does anyone else have this problem of their ZServer just stopping for no apparent reason? - deb