[Samba] Samba 3.4 Panic in Debian
vorlon at debian.org
Wed Jan 27 05:05:46 MST 2010
On Tue, Jan 26, 2010 at 02:22:36PM -0800, Steve Langasek wrote:
> On Tue, Jan 26, 2010 at 05:03:51PM -0500, Sam Hartman wrote:
> > >>>>> "Steve" == Steve Langasek <vorlon at debian.org> writes:
> > Steve> On Tue, Jan 26, 2010 at 01:29:08PM -0500, Sam Hartman wrote:
> > >> OK. Can someone on the Samba side confirm that the Linux kernel
> > >> only supports DES for some Samba related Kerberos operation?
> > >> Specific details on what is going on would be useful.
> > Steve> The kernel is only involved when one is using CIFS mounts,
> > Steve> which aren't relevant to winbind and domain joining; so this
> > Steve> shouldn't be a kernel issue.
> > OK. Then I currently have no idea why allow_weak_crypto would be
> > desirable for Samba.
> In the case of AD realms that were continuously upgraded from NT4 domains,
> you may have accounts only using RC4 as an enctype for
> backwards-compatibility with pre-AD systems. I don't know if this is the
> reason these users are seeing problems, but it's the only case I can think
> of why allow_weak_crypto should be needed.
Sorry, having looked at the source now, I see that the weak crypto handling
is specific to DES, not RC4; and if Samba were *only* using RC4, this error
would not happen.
However, Samba requests both RC4 and DES, a historical remnant of the time
when DES was the only enctype in common between all Kerberos
Steve Langasek Give me a lever long enough and a Free OS
Debian Developer to set it on, and I can move the world.
Ubuntu Developer http://www.debian.org/
slangasek at ubuntu.com vorlon at debian.org
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