I have upgraded from 10.7 to 11i and need some information about how the middle tier works!

11i has the following components involved in handling the middle tier:

1. Apps Listener
2. Apache Listener
3. Concurrent Manager
4. DB Listener
5. Forms Metric Servers
6. Form Server Listener
7. TCF server
8. Reports Server
9. WebDB Listener (2.5)
10. WebDb Listener (2.2)

Could anyone explain to me how Apache and Oracle (actually any of these pieces ) work together.

When I used to run NCA I was able to point to //hostname:8888 to configure the web listeners etc. But now that Apache is in the mix I can't find any Oracle Web Applications configuration front end.

Any information on how all of those products work together would be great. I have read the following documents, but they don't go into too much detail on how everything works together.

11i Concepts Guide
11i System Admin Guide

Any information would a big help.

I can navigate through most of it, but I'm looking for a very high level explanation of how everything works together. I talked with staff at Oracle and they didn't give me a lot of information about how iAs, Apache, etc worked together.

Thanks

[Edited by blurry on 08-30-2001 at 12:24 PM]