To backup the system from your browser interface:

• Login to the Setup Wizard
  
• Set 'Perform offline backup' option if you want to stop all services when doing a backup
• Set 'Remove old backups' option if you want get rid of all previous backups
  
• Set 'Set daily backup as cronjob' option if you want to configure backup to be done automatically on a daily basis
  
• Click on 'Backup' to create a backup of current system configuration.