Dear all,

Why renewing a short-lived ticket is better than getting a 
new short-lived ticket to replace the existing short-lived
ticket that is going to expire?

I understand that if the existing ticket is a TGT, renewing
it is easier because it can be done using the session key
in the TGT while getting a new TGT would require the user's 
secret key. But for a service ticket, I don't see why renewing 
it is any better than getting a new one.

Any idea would be greatly appreciated!

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