Wiki won't work because of proxy error. Help?

Question

Howdy All,
After a long struggle I managed to get the Wikis working.
Firstly, I didn't know the users and groups had to be in Open Directory - that could be made more clear and, by the way, why is that so? Secondly, it seems my OSXS upgrade didn't go that well, so I didn't get a themed group or wiki. After searching and copying some files it sprang to life in all it's AJAX and design greatness (well done Apple!).
Then I did a silly thing. It was slow so I tried to experiment with turning the Performance Cache on and off (I thought it should be off, but you never know, perhaps it would help). The problem was, I believe, that I turned it on and off too fast for Server Admin. Now I can't load the groups page or the wiki at all. I just get the following Proxy Error:
Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /groups/.
Reason: Could not connect to remote machine: Connection refused
Apache/1.3.39 Server at osr.hatken.com Port 16080
I have a general understanding of how the performance cache works (I believe it is set up as a filter at the local host 127.0.0.1 and hence, "could not connect to remote machine" is stretching it a bit). Anyway, I have searched high and low to try and find the problem, but I can't. I thought it must be one of the httpd config files got corrupted but I can't see any problem in them.
Any suggestions on what might be wrong and how to fix it?
One other thing. When I was having problems getting groups and wiki to work I gave up temporarily and downloaded MediaWiki. Unfortunately, I found out it requires PHP5 which I believe requires Apache2. Late at night (early morning) I decided to upgrade OSXS to Apache2 (by clicking on the button in Server Admin). (Un)fortunately it seemed to fail.
So perhaps there some inbetween Apache 1.3 and 2.x in the mix. That said, Server Admin reports the machine to still be running Apache 1.3 (as does top) and all other Web sites seem to load fine.
I've also noticed the Python process cycling to a very high percentage CPU usage continually, up and down, up and down. I believe that has something to do with the groups / wiki.
I've tried turning off the wiki (in the Sites tab) and turning it on again (hoping that would reset things, but no luck). I've searched high and low through the discussion lists and on the Web but can't seem to find anything to fix this problem (the proxy error). I still think there is a configuration somewhere that is half done wrt the performance cache.
Any help or suggestions to get the groups / wikis back would be most appreciated.
Cheers,
Ashley.
PS This is MacOSX Server 10.5.2. This is also a virtual host (I have a few). The virtual host web site still loads fine.

Answer 1

Hi JLeeAnne1993,
Welcome to the Apple Support Communities!
I understand you are receiving an alert after attempting a restore. You have done several great troubleshooting steps already I see. The other steps I would recommend would be isolating the usb port, reregistering “.dll” files, updating or reinstalling the Windows USB drivers, and possible disabling your security software temporarily. I know the specific alert number you are receiving is not listed, but please use the following article for the steps and information on how to complete these actions.
iPod: Can't restore or update in iTunes with error 1415, 1417, 1418, 1428, 1429, 1430, 1436, or 1439
http://support.apple.com/kb/ts1372
I hope this helps,   
-Joe