I have no idea whether it will work on centos but on mint (and previously ubuntu) I use luckybackup successfully across the local network both for backup and specialised file transfer between machines, some manually invoked and some by cron.

Learn to use dump and restore. The best and only way to do backup.

Set up a machine at home or another location, set up a cron job to rsync everything down to that server.. set up a timed mysqldump to also dump all of your mysql databases and use rsync to grab those also.