Linux - Apache - MySQL

I am accessing a database using Apache as my web server through an applet on a Linux system and I am getting the following error when trying to establish a connection to the database:

Does anyone know what part of the Apache Server configuration blocks this access.
When I access a MySQL database on a Win2K advanced Server system, it works great. Although I am not using Apache on the Windows Machine.
Thanks

i'm not an expert at Applet to database comms, but is the connection from the applet trying to use mysql's standard port which could be blocked (default is 3306)

That is a possibility. Now, how do I find that out, and free the port? If anyone knows, that would be great.

Well, I was able to free port 3306 using iptable commands, however, this did not solve my problem. I believe that Apache is actually blocking access somehow. If anyone has any experience with these, I would appreciate any help.
Or maybe this belongs in a different forum??
Thanks

Could a moderator please move this to Apache/Tomcat thread? I may have better luck there and do not want to repost.
Thanks