Jakarta / IIS / TomCat Server farm error 403

[Toby Considine]

My front end server, in a DMZ, already running a lot of DotNetNuke, is about to share namespace with a family of faily intense TomCat apps.

Toward this end, I have added the Jakarta ISAPI filter to the site, and am trying to redirect the Java apps to back-end servers using the load balancing functions that can be set up using workers.properties. I have debugging set on high and it looks like it is set up properly.

Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_isapi_plugin.c (828): Virtual Host redirection of /www.test.facilities.unc.edu/jsp-examples/
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (449): Attempting to map URI '/www.test.facilities.unc.edu/jsp-examples/' from 14 maps
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/FMEFundingLetters/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/servlets-examples/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/jsp-examples/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/jkmanager'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/manager/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/facUse/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/admin/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_isapi_plugin.c (835): Default redirection of /jsp-examples/
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (449): Attempting to map URI '/jsp-examples/' from 14 maps
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/FMEFundingLetters/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/servlets-examples/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (461): Attempting to map context URI '/jsp-examples/*'
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_uri_worker_map.c (475): Found a wildchar match wlb -> /jsp-examples/*
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_isapi_plugin.c (845): check if [/jsp-examples/] is points to the web-inf directory
[Mon Sep 18 15:52:16 2006] [4572:4528] [debug] jk_isapi_plugin.c (863): [/jsp-examples/] is a servlet url - should redirect to wlb

The problem is, after the that last line, the one that goes to the load balancing, I get an error 403 (access denied) every time.

Server environment is Win2k3, which implies IIS 6.
Set-up on back-end server looks OK to me
Communication is set up as AJP13 over port 8009.

Any suggestions as to what to look for next?