Specify the Encryption for a Realm

Start Kerberos Manager.
From the Configuration menu, choose Configure Realms.
From the Configuration tab, select a realm from the Realm list, and then click Properties.
From the Encryption tab, click the Configure Encryption Types button.
Move the encryption type you want to the top of the list (select it, and click the Up button), and then click OK.

If the encryption type you want isn't available, click the Add button and select it.

NOTE:If your KDC uses the CyberSafe implementation of Kerberos, use DES_CBC_MD5 as the encryption type, and select Use password as MD5-IV.
Click OK.