Please note that all administrative tasks require admistrative privileges/principles. To initiate your kerberos credentials please review Kerberos Credentials Cache. It's extremely important that admin. account privileges not be misused or taken lightly.

In general it's not a good idea to keep yourself authenticated to an admin principal any longer than you really need it! It's like driving without a seat belt. Please use kdestroy as soon as you are done with your admin principal (or kinit the admin principal into a non-standard credentials cache in the first place to isolate its use).