-allow_tgs_req

[Chris Hecker]

Ah.  Is there any way to prevent a service princ from being able to get
tickets?

As in, if one of my service keytabs is compromised, can I prevent those
princs from being used like a normal user princ?

Chris


On Mon, Jan 8, 2018 at 19:58 Russ Allbery <eagle at eyrie.org> wrote:

> Chris Hecker <checker at d6.com> writes:
>
> > If -allow_tgs_req / DISALLOW_TGT_BASED is set on a service princ then I
> > shouldn't be able to kinit with it, right?  I'm able to get TGTs though
> > with kinit and the keytab for this service, and then get service tickets
> > with kvno; I need to update my KDC and see if this is still true, or
> > mabye I'm misunderstanding how it works...?
>
> That prevents other principals from getting service tickets for that
> principal using a TGT.  It's intended for principals like kadmin/changepw
> that want to force an AS-REQ to get a service ticket for that principal.
>
> It doesn't have any effect on authenticating as that principal.
>
> --
> Russ Allbery (eagle at eyrie.org)              <http://www.eyrie.org/~eagle/>
>