Backups

rdiff-backup

It is an extention of rsync with with coping using hard links

http://www.nongnu.org/rdiff-backup/examples.html

rsync

http://www.mikerubel.org/computers/rsync_snapshots

cwRsync: rsync in Windows

http://www.itefix.no/i2/node/10650

Some explanations to use it for a particular server: http://www.rsync.net/resources/howto/windows_rsync.html

Summary of methods to backup on Gentoo

http://gentoo-wiki.com/HOWTO_Backup