Re: [PATCH Version 2 0/3] GSSD: Use gss-ctx keys and gsskeyd to sync Kerberos credentials and kernel gss_contexts.

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On Thu, 2013-11-21 at 08:37 -0500, Steve Dickson wrote:
> 
> On 20/11/13 15:49, Simo Sorce wrote:
> >> I think Solution 3: [nfslog/nfslogout interfaces invoked from PAM or
> >> > other login system facility] is a good way to go.  Note that a PAM
> >> > based solution where in the PAM would get us most of the way towards
> >> > providing users with a way to login and logout of NFS kerberized
> >> > shares.
> >> > 
> >> > Comments on an NFS PAM that will destroy GSS context for a UID upon
> >> > logout?
> > I prefer 3 too, let it to the login system (whether PAM based or other)
> > to determine when it is time to destroy credentials, that's the only
> > component that have a chance of guessing right.
> > Of course you could also provide a user utility to force a purge.
> > 
> +1 for me on this options as well... 
> 
> But how is it known when somebody logs out? Is that PAM-able as well?

I would say "login process" more than pam, but the basic idea is the
same, a user space program that knows when the user is logging out for
good and is privileged enough to go an tell the kernel to nuke creds.

Simo.

-- 
Simo Sorce * Red Hat, Inc * New York

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