I've set up an apache proxy server to allow external access to my galaxy instance, following the directions at http://wiki.g2.bx.psu.edu/Admin/Config/Apache Proxy. When I access galaxy directly (locally), everything works fine. When I try to access it through the proxy server, I get a login screen that works like it should - it gives me errors if I enter non-existent usernames or wrong passwords - but when I enter the correct information, it shows this screen for half a second, and then immediately redirects back to the login page:

I prefer Galaxy handling usernames and passwords on its own, so I didn't add the "External user authentication" bits - are these required for a proxy server? I've attached the relevant parts of my httpd.conf, as well as my universe_wsgi.ini file if they help at all.

Thanks again for the excellent support,

Alex Bigelow