rsync to backup debian unix

After installing rsync you need to enable rsync in this file /etc/default/rsync,edit this file and you need to change the line following line

RSYNC_ENABLE=false

to

RSYNC_ENABLE=true

nano /etc/rsyncd.conf

uid = nobody
gid = nogroup
max connections = 3
socket options = SO_KEEPALIVE

[debian]
  path = /
  comment = server backup
  auth users = admin,root
  read only = true
  secrets file = /etc/rsyncd/debian.secrets



ssh-keygen -t rsa

ssh-copy-id -i ~/.ssh/id_rsa.pub root@remotehost