I'm working with an application inside of a Docker container that uses GSS to 
do Kerberos Constrained Delegation.

I'm guessing they need to augment the code.

Doing some testing via kinit, I have found that kinit -E only works if the 
account lives in the parent domain.

If I try to do a kinit -E with their samaccountname or email address, it says 
they're not found if they are in a child domain.

Jon Towles
CTO, Synterex
(m) 978-609-5545

  

-----Original Message-----
From: Isaac Boukris <ibouk...@gmail.com> 
Sent: Tuesday, July 14, 2020 9:35 AM
To: Jonathan Towles <jjtow...@synterex.com>
Cc: Bryan Mesich <bryan.mes...@digikey.com>; kerberos@mit.edu
Subject: Re: Kerberos Database Sync with Sub-Domains

On Tue, Jul 14, 2020 at 3:22 PM Jonathan Towles <jjtow...@synterex.com> wrote:
>
> So by using enterprise principal names, you can essentially point it at the 
> parent domain KDC, and it can get a ticket for even users in the sub-domains?

Client-referrals are used to locate the realm, see details in RFC 6806.

> That's only something that can be done in the GSS config right? You can't do 
> it in the KRB5.conf file?

For kinit, you just need to pass the '-E' flag, no conf involved.

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