Hi there,
I've recently been setting up a koji environment. I've been relying heavily on the docs http://fedoraproject.org/wiki/Koji/ServerHowTo. The docs have been a great help.
However, I ran into a small issue when modifying the ProxyDNs option in /etc/koji-hub/hub.conf
DNUsernameComponent = CNI had problems with the server responding with: "(user) is not authorized to login other users". I did change the value to my cert's settings.
ProxyDNs = "/C=US/ST=Massachusetts/O=Example Org/OU=Example User/CN=example/emailAddress=example@example.com"