rsync and backup of Unifi-OS

Example, use rsync via UDM-PRO and a linux server (the latter as the backup location).

Instructions/Discussions online:

https://ryanburnette.com/blog/unifi-backup-udmp/

https://support.hostifi.com/en/articles/3561377-how-to-use-rsync-for-copying-unifi-backups-to-your-own-offsite-server

https://www.reddit.com/r/Ubiquiti/comments/kx6sig/sshfs_or_rsync_on_udmpro/

https://community.ui.com/questions/Rsync-for-my-autobackup-files/3ae55c15-d855-4d53-8c45-4fc056111a2c

Example simple script in scripts directory, filename: backup-to-server.sh