rsync

A. Login w/o password in SSH

#Generating RSA Keys (Source Host)
ssh-keygen -t rsa

#Transfer Client Key to Host (Destination Host: Backup server)
ssh-copy-id <username>@<host>

B. Backups with rsync

rsync -avr --delete --exclude="temp" /etc/network/ admin@xxx.xxx.xxx.xxx:/home/hureeadmin/fwserver


C. Automatic Backups (Cron)

nano /sh/rsync.sh

#! /bin/bash

rsync -av /etc/ admin@xxx.xxx.xxx.xxx:/home/admin/backup_fwserver


crontab -e

0 2 * * 0 sh /sh/sysbackup.sh