Enabling Password Protection for GRUB

To secure the GRUB boot loader and to prevent unauthorized changes to the SLX device at boot time, access to these settings must be password protected. Use the GRUB Configuration mode of the SLX-OS to enforce this.

Password protection of the GRUB Bootloader menu is disabled by default. It must explicitly be enabled.

In the privileged EXEC mode, enter the configure terminal command

SLX #configure terminal
SLX (config)#

Enter into the special GRUB Configuration Mode.

SLX (config)# grub
SLX (config-grub)#

Enable the GRUB Password Protection feature.
```
SLX (config-config)# enable
SLX (config-config)# 
                    
```
You will be able to configure the username and password.

Configure the username and password.

SLX (config-grub)# username testUser password ********
SLX (config-grub)#

The SLX device is now secured from unauthorized changes made by a user who has console access during boot time.

Note

This setting will not be applicable till the SLX device is rebooted.