Validity of renewable and postdatable tickets

3ff3 tbinhluong at
Thu Apr 29 10:33:40 EDT 2010

hi folks,

i have a question about kerberos v5. AFAIK, Kerberos v5 supports the options
renew and posdate for tickets. That means, an application client can request
the ticket to be renewed periodically or to use it in future with an
May-Postdate-Flag in TGT.

My question is, do the application server also have to check the validity of
the ticket concerning the timestamp and ticket lifetime?

Thanks in advance,
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