These ebuilds come from http://dev.gentoo.org/~mueli.
If you have some problems, go to the official site first.
nfs-utils : NFS client and server daemons ( http://nfs.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a kerberos
For Paludis use this rsync : rsync://gentoo.zugaina.org/kerberos-portage
If you have a problem : ycarus(-at-)zugaina.org