You want to view and possibly purge your Kerberos tickets.
utilities can be found in the Resource Kit.
kerbtray.exe from the command line or Start
A new icon (green) should show up in the system tray (where the system time is located). Double-click on that icon. This will allow you to view your current tickets.
To purge your tickets, right-click on the
icon in the system tray and select Purge Tickets.
kerbtray window and reopen it by
right-clicking on the
kerbtray icon and selecting
Run the following command to list your current tickets:
> klist tickets
Run the following command to purge your tickets:
> klist purge
Active Directory uses Kerberos as its preferred network authentication system. When you authenticate to a Kerberos Key Distribution Center (KDC), which in Active Directory terms is a domain controller, you are issued one or more tickets. These tickets identify you as a certain principal in Active Directory and can be used to authenticate you to other Kerberized services. This type of ticket is known as a ticket-granting-ticket, or TGT. Once you’ve obtained a TGT, the client can pass that to a Kerberized service and if the service accepts the ticket, it will issue a service ticket that represents the client for the particular service.
Kerberos is a fairly complicated system ...