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MIT Kerberos client and default cache

daemon@ATHENA.MIT.EDU (Pierre Dehaen)
Tue Oct 16 03:41:09 2018

From: "Pierre Dehaen" <dehaenp@drever.be>
To: kerberos@mit.edu
Date: Tue, 16 Oct 2018 09:40:42 +0200
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Hello list,

Configuration:
- Windows are clients of an AD
- Kfw 4.1 is used to acquire tickets from another realm
- Clients use tickets through Firefox to access apache applications
- All working well

In the Kfw GUI, next to the TGT of the additional realm, we see the TGT of the AD. The 
former shows API: as credential cache, while the later shows MSLSA:, all good.

According to <https://mailman.mit.edu/pipermail/kerberos/2015-April/020637.html>: Once 
you have a ticket, the "make default" button will set the registry entry for you. 

That is the problem: once a user has clicked "Make default" while the AD ticket was by 
chance selected, only one TGT can be acquired at a time, each Get Ticket overwrites all 
existing tickets.

Okay, I can fix this in the registry... but users can't, that's too difficult/risky, and I don't find a 
way to revert to the default credential cache from the GUI. Even the "Make default" trick does 
not work anymore as all tickets are MSLSA tickets.

Any advice?

TIA,
Pierre Dehaen


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