Backup

backup the UniFi directory

tar zcvf unifi-backup.tgz /usr/UniFi/

Move the tar archive off site.

Restore

Upload the backup file to the server.

Note: You will need to have the UniFi controller install already.

Copy the archive to the root directory and then extract it.

mv unifi-backup.tgz /
cd /
tar zxvf unifi-backup.tgz

Reboot the server and login to the UniFi controller.

reboot