I'm sorry (well, actually glad!), I found a solution... it wasn't Apache, but Squid:
The request to thomas.mindmatters.de got a via header to mark it as being processed by a proxy. The request got to apache, which proxied it. Then the request (with the via header) came to squid again which thought this is a forwarding loop (which it isn't - just a two pass process) and denied it. So I added a ProxyVia block directive in the VirtualHost and it works... sorry for bugging you. Cheers, Thomas "Thomas Jachmann" <[EMAIL PROTECTED]> schrieb im Newsbeitrag news:[EMAIL PROTECTED] > Hi, > > My setup is rather complex for a simple web server, but let me try > explaining it: > > Squid is listening on port 80 of my IP address, configured as a non-caching > httpd accelerator. It's main purpose is to be one single access point to two > apaches: One on the same maching, the other on another machine. The > distinction between the two servers is done based on the domain name used (I > couldn't do this using DNS, due to the network structure). > > The Apache on the same machine is listening on port 80 of 127.0.0.1 and > serves a few name based virtual hosts. > > Now what I want to do is have one virtual host (vhosts.mindmatters.de) that > is used to connect to a tomcat server: > > JkMount / ajp13 ajp13:vhosts.mindmatters.de:8009 > JkMount /* ajp13 ajp13:vhosts.mindmatters.de:8009 > > Now I want to let other virtual hosts access the tomcat mounts. Let's say I > have a virtual host thomas.mindmatters.de and all requests should be sent to > an application "thomas" deployed on tomcat. I'd like to configure this using > a .htaccess file in the document root of this host (so that changes to the > redirection can be done by the user without reloading apache's > configuration): > > RewriteEngine on > RewriteRule ^(.*) http://vhosts.mindmatters.de/thomas/$1 [P] > > But with this, I get an error from squid saying that the access is denied > for http://127.0.0.1/thomas/. > > What this seems to do: I access thomas.mindmatters.de, which lets apache's > mod_proxy module issue a request on vhosts.mindmatters.de/thomas. This goes > to squid again and tries to fetch it. But the request to squid must be > different thatn the request I'd send when accessing > vhosts.mindmatters.de/thomas directly, since it doesn't go through. > > First I thought, this error might occur because apache doesn't change the > Host header of the HTTP request to vhosts.mindmatters.de (so that squid and > apache are able to analyse it properly), but it does. > > Any hints on how I could achieve this? Thank you very much. Oh, and > redirects and authentication requests should be handled transparently as > well without exposing the domain of host2 to the client! :) > > Regards, > Thomas > > PS - I think, tomcat or squid aren't the problem, it's just that I'm > proxying a name based virtual host from another name based virtual host on > the same machine/apache. Are there any known problems and workarounds for > this? > > > >
