Rsync is a great tool that allows you to trade network bandwidth for CPU bandwidth. It’s great for keeping a mirrored directory current on a remote system. I’m currently using it to mirror involution.com two different machines in two different states to minimize the chances that I lose any of my hard work.

This is the command that I use for the backup:

rsync -ave ssh --include .htaccess  /var/www/html/ tony@backupsite1:www/

rsync -ave ssh --include .htaccess  /var/www/html/ tony@backupsite2:www/