Every appliance uses the same SSH key. Can you generate and assign your own SSH keys?
By default TPAM only uses a pre-configured SSH key.
Version 2.5.909 added ability to change TPAM appliance host keys. The option was added to the "Manage SSH Keys" page in the '/admin' interface. In TPAM 2.5 go to the /admin interface, "Keys | Manage SSH Keys".
You can also import or generate your own keys:
On the "Connection" tab for a managed system, under "Account Credentials" new keys will appear in the "Avail. System Std. Keys" dropdown.
TPAM will not allow you to save a key that will make more than 3 keys active at the same time. You will not be able to
save the key until the dates are adjusted on the other keys so that only 3 will be active at one time.
You should also be aware it takes time for the dsa key to show on the dropdown for a system. You may need to exit and return to system as refresh does not seem to work on this field.