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