[Zope] [newbie question] where is error log?

I found error log for apache web server, at /etc/httpd/logs/error_log. ( I use redhat linux...) and, now I install Zope ZServer. but, Zope Server was Down any error message. I can't Understand. So, I try to find log. but var/Z2.log is access log.. Any error logs ? and, I use Redhat Linux. ( Newbie too.. -.-; ) I want start ZServer when my computer boot up. there are any Start script as apachectl ? thank you? -- ================================ test by iron ironyjk@kldp.org