Concept Guide

Dell EMC Networking OS Behavior after System Power-Cycle
If the system reboots due reasons such as power-cycle, the current startup configuration may be different than the one
you verified the hash using the verified boot hash command. When the system comes up, the system may use the
last-verified startup configuration.
Dell EMC Networking recommends backing up the startup configuration to a safe location after you use the verified boot
hash command. When the startup configuration verification fails, you can restore it from the backup.
The system continues to display a message stating that startup configuration verification failed. You can disable the startup
configuration feature either by disabling startup configuration verification or save the running configuration to the startup
configuration and update the hash for the startup configuration.
Enabling and Configuring Startup Configuration Hash Verification
To enable and configure startup configuration hash verification, follow these steps:
1. Enable the startup configuration hash verification feature.
CONFIGURATION mode
verified startup-config
2. Generate the hash checksum for your startup configuration file.
EXEC Privilege
generate hash {md5 | sha1 | sha256} {flash://filename | startup-config}
3. Verify the hash checksum of the current startup configuration on the local file system.
EXEC Privilege
verified boot hash startup—config hash-value
NOTE:
The verified boot hash command is only applicable for the startup configuration file in the local file
system.
After enabling and configuring startup configuration verification, the device verifies the hash checksum of the startup
configuration during every reload.
DellEMC# verified boot hash startup—config 619A8C1B7A2BC9692A221E2151B9DA9E
Configuring the root User Password
For added security, you can change the root user password.
If you configure the secure-cli command on the system, the Dell EMC Networking OS resets any previously-configured
root access password without displaying any warning message. With the secure-cli command enabled on the system, the
CONFIGURATION mode does not display the root access password option.
To change the default root user password, follow these steps:
● Change the default root user password.
CONFIGURATION mode
root-access password [encryption-type] root-password
Enter an encryption type for the root password.
○ 0 directs the system to store the password as clear text.
○ 7 directs the system to store the password with a dynamic salt.
○ 9 directs the system to encrypt the clear text password and store the encrypted password in an inaccessible location.
When you configure the root access password, ensure that your password meets the following criteria:
○ A minimum of eight characters in length
○ A minimum of one lower case letter (a to z)
○ A minimum of one upper case letter (A to Z)
○ A minimum of one numeric character (0 to 9)
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