Because the Ubuntu device is used as a server to automatically run the service program when it is turned on, it is necessary to cancel the power-on password to realize automatic login.
1. Click the down arrow in the upper right corner of the desktop, click the settings icon
2. Click Unlock in the upper right corner
3. Enter the system login password in the pop-up window, and click Authenticate in the lower right corner
4. Set the automatic login to ON, close the window, and then turn on the system to directly enter the system
