[Samba] Kerberos Keytab Code Update in 3.0.23
roamdad at sonic.net
Fri Jul 14 00:58:48 GMT 2006
>> No offense intended, but what is the purpose of
>> adding the variations of case especially with respect to
>> the FQDN?
> Too much guessing IMO.
True. Very true. But I'll chime in with "we got there after
numerous authentication failures at different sites".
It always seemed there had to be a different way, because the
MS writeup of creating a user account, generating a keytab,
and exporting to the target system prior to the join worked
with only 1 entry. A UPN. I tried real hard, but was unable
to ever generate a keytab UPN on a machine account.
I argued it was overkill at the time, but Redhat's
enterprise issues went away. It was one of their people
did the basic patch with Jeremy heavily editing.
>> When I look at the tickets that are the result of
>> making connections from one Win2K3 server to another,
>> the principals simply reflect the form of the
>> requests - ie \\FOO yields principal cifs/FOO at BAR.COM,
>> \\foo.bar.com yields principal cifs/foo.bar.com at BAR.COM
>> What am I missing?
> My experience has been that the principals in the
> service ticket match the SPN values in AD. I don't
> see all of this case permutation people are claiming.
> The patch is a work in progress so any feedback would
> be appreciated.
Give me a couple days to get samba current across multiple
servers, then I'll remove and re-add one of the old problem
servers and diagnose what I get. I may even go so far
as to create a brand new server in vm and join it and
access it from various unix and windows A/D platforms.
Am I right in understanding the rewrite will require the
in-addr.arpa to resolve to the same dns domain as
Ticket case variations are what show up when clients access
the samba servers using klist or kerbtray. It could be a case
of because they exist, they get used. Except for the first
letter upcase, all others downcase. I traced that using ethereal,
patched samba to generate it in the keytab, and things
started working. I remember distinctly. Unless Jeremy
did something behind the scenes at the same time that I
downloaded using svn. As in private/secrets.tdb. Magic there.
FWIW - my experience with windows is that it was written
with a certain amount of heuristics, in that a learned behavior
will continue to be used until it fails at which time the
code falls into a different procedure that, if successful,
will be used until it fails, etc. This is why users document
different behaviors in what appears on the surface the
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