The IPP nodes all run Gentoo and we have our own small portage overlay to add and/or modify a few .ebuilds.

Our /etc/portage/* configuration files: http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/browser/trunk/portage

Our portage overlay: http://svn.pan-starrs.ifa.hawaii.edu/trac/ipp/browser/trunk/portage_overlay


Recommend reading