In a web browser, go to your MGMT IP address with port :82 to access a Linux management console.
Login as "admin" with your default password. If you don't remember your default password contact support.
Here you have some menus where you can perform certain tasks
To shutdown or reboot the server, go to Bootup and Shutdown
To change network settings, go to Network Configuration
To change System time, go to System Time
To change important Linux system passwords