We have a Linux server that is running Apache and Zope for some web content.  This server/system was set up some time ago by a person who is no longer at the company.  As a further complication, we don't even have anyone on staff anymore who is a capable Linux admin.  We have me.  I know just enough to be able to make changes to web content, DNS and Firewall, but not true administration of this box or its services.

Today the Zope-managed content is not available on the web.  I have logged on to the host server and have restarted both Zope and Apache without effect.  I know Zope is running because I can FTP to it on Port 8021 and can see the content there.  I know this is a very vague request, but can someone help me with where to begin looking for the problem?  Any assistance would be much appreciated.  Thanks.

Rob