Hi,
We can Scheduled backups via Webmin control panel. Please follow these steps to Scheduled backups.
1) Click on the Scheduled backups tab.
2) Click the Add a new scheduled backup link, which will open the form shown below.
3) Select the modules whose config files you want to include from the Modules to backup list.
4) Enter a local or remote file destination in the Backup destination section.
5) If you want to be notified about the status of this backup, enter your email address in the Email result to address field.
6) In the Scheduled backup enabled? field select Yes, and choose the times and days for the backup to run from the Cron time selector below it.
7) Click the Create button.
Once a scheduled backup has been created, you can edit or remove it by clicking on the destination path in the table under the "Scheduled backups" tab.
Thank you,
