backuppc : A high-performance system for backing up computers to a server's disk. ( http://backuppc.sourceforge.net/ )
nagios-backuppc : A Nagios plugin for monitoring the state of BackupPC. ( http://n-backuppc.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 portage-backup
For Paludis use this rsync : rsync://gentoo.zugaina.org/portage-backup-portage
If you have a problem : ycarus(-at-)zugaina.org