NetApp
Cluster : Configuration > Services > Kerberos : Managing Kerberos : Deleting Kerberos realm configurations

Deleting Kerberos realm configurations
You can use System Manager to delete a Kerberos realm configuration.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
3.
Click Configuration > Services > Kerberos.
4.
Select one or more Kerberos realm configurations that you want to delete and click Delete.
5.
Select OK to delete the selected Kerberos realm(s).
6.
Click Delete.