infinite redirect loop :-(

hi all,

maybe somebody has a clue? I have a problem with my https://cocoa.wops.de WordPress-based blog.
The start page *looks* fine but apache’s error log is full of problems. In addition to that you can’t click on an entry’s title and get that page. Try for yourself.
I set the LogLevel to debug and this is what I get:

[Mon Oct 27 13:56:09 2008] [error] [client 81.169.145.28] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3046): [client 81.169.145.28] r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /wp/index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /wp_cocoa/wp/wp-content/uploads/2007/06/dsc00169.thumbnail.JPG, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [error] [client 81.169.145.28] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3046): [client 81.169.145.28] r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /wp/index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /wp_cocoa/wp/wp-content/uploads/2007/06/dsc00171.thumbnail.JPG, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [error] [client 81.169.145.28] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3046): [client 81.169.145.28] r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /wp/index.php, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3052): [client 81.169.145.28] redirected from r->uri = /wp_cocoa/wp/wp-content/uploads/2007/06/dsc00170.thumbnail.JPG, referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [error] [client 81.169.145.28] Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: https://wops.dnsalias.net/wp_cocoa/
[Mon Oct 27 13:56:09 2008] [debug] core.c(3046): [client 81.169.145.28] r->uri = /index.php, referer: https://wops.dnsalias.net/wp_cocoa/

and so forth and so forth… ??

wops.de is mine, cocoa.wops.de is a subdomain and I pointed it to wops.dnsalias.net/wp_cocoa .
The latter (wops.dnsalias.net) points to my home server, a Mac mini with the XAMPP package.

I configured “wops.dnsalias.net/wp_cocoa” both as wordpress URL and the blog URL in the settings of my WordPress 2.6.
Changing the WordPress URL to “https://cocoa.wops.de” doesn’t help.

Anyone any idea?

I’m hosting other WordPress installations on that Mac mini, too. Like https://meta.wops.de . Same configuration — no problem there!
(meta.wops.de points to wops.dnsalias.net/wp_meta where the WordPress installation is.)

Thanks a lot!
Stefan.