Hello,

When a service re-authenticates to the KDC, effectively getting a new TGT,
are the service tickets related to previous instance of the TGT for that
service, no longer valid?

That is, does a service re-authenticating to a KDC, rather than renewing,
cause all the current related service tickets to no longer be valid and in
turn trigger all those clients holding the previous generation of tickets,
to re-request a service ticket at that point from the KDC?

Or is that service ticket durable, and will it survive replacement (not
renewal) of the underlying TGT?
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