Logging on with cached ticket

[Simo Sorce]

On Fri, 2009-06-05 at 17:22 +0400, Nikolay Shopik wrote:
> On 05.06.2009 17:15, Simo Sorce wrote:
> > Windows caches the NT hash of your password.
> > That's how you get access w/o the KDC. Nothing to do with kerberos
> > credentials at all.
> 
> That's what I though for moment. Can such thing (caching MD5/whatever 
> hash locally for some period) accomplished on Linux?
> 
> By default locking screen doesn't not produce request for new TGT, I 
> mean if workstation is locked. But can be changed via group policy.

There a re a few projects that do password caching on Linux depending on
what is your environment. The classic one I think pam_ccache, but if
your KDC is a Windows AD server you can use winbindd which support
offline logins (and caches users information too so it works also when
LDAP is not available), then <shameless advertizing> there is also a
project called SSSD I am working on </shameless advertizing> that aims
at doing the same but for arbitrary authentication and identity sources,
although it is still very young, and needs some maturing.

I think we may be going a bit too OT for this list.
Simo.

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