koan fails: cobbler_api not found

[Joe Linoff]

Hi Folks:

I have dom0 xen-3.4.3 server based on CentOS 5.5 running and I want to
use koan to install a domU guest. Unfortunately simple koan commands
fail like this:

    dom0 # koan --list=system
    - looking for Cobbler at http://<server>/cobbler_api

I went to the cobbler server but could not find cobbler_api anywhere on
the system. 

I looked at /etc/httpd/conf.d/cobbler.conf and cobbler_api shows up but
because my understanding of Apache is so limited, I am not sure what
ProxyPass does or how it would affect things.

What do I need to do to get koan to work?

Thanks,

Joe