AS-REQ with till being the epoch

Weijun Wang at
Tue Aug 29 09:38:14 EDT 2017

It looks like if I set the till field in AS-REQ to the epoch, the issued ticket will have a very big endtime (Ex: now it's 2106-02-07 06:28:15 (UTC)).

Well, this is OK.

But if I call kvno with this TGT in ccache, I see a "Ticket expired while getting credentials" error. Maybe somewhere in the KDC that very big endtime is mistakenly treated as a very small number?

My KDC is compiled from the head of


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