The Kerberos database on the master KDC contains all of your realm's Kerberos principals, their passwords, policies, and other administrative information. To create and delete principals, and to modify their attributes, you can use the kadmin or gkadmin commands.
kadmin, which uses Kerberos authentication to operate securely from anywhere on the network
kadmin.local, which must be run directly on the master KDC
Also, SEAM provides the SEAM Administration Tool, gkadmin, which is an interactive graphical user interface (GUI) that provides essentially the same capabilities as the kadmin command. See SEAM Administration Tool for more information.