when installing 0.6.0 ROPM, I had mod_auth_kerb installed (and working on an older version) but after uninstall/reinstall, the ipsilon config file in /etc/httpd/conf.d had vales that started with Gss, not Krb. Modiofying them by hand got the server to run correctly.

If ipsilon is going to assume mod_auth_gssapi, that requriment needs to be documented in the spec file. If mod_auth_kerb is going to be allowed as a transition, the install process needs to identify which set of values it should generate.