Reminder about Samba4's secrets.keytab

Andrew Bartlett abartlet at
Wed Dec 21 22:32:12 GMT 2005

On Wed, 2005-12-21 at 23:14 +0100, Guenther Deschner wrote:
> Hi Andrew,
> On Thu, Dec 22, 2005 at 06:11:27AM +1100, Andrew Bartlett wrote:
> > Just a quick note to Samba4 developers, who are trying to chase down
> > issues with ethereal.
> > 
> > Ethereal supports decrypting kerberos data with a keytab (Preferences ->
> > Protocols -> KRB5 -> Try to decrypt Kerberos blobs).  
> > 
> > You may point it at the 'secrets.keytab' in the Samba4 private
> > directory, which automatically contains the krbtgt and Samba server
> > keys.
> > 
> > For windows domains, I'm intending to write a 'net samdump keytab'
> > utility, to directly dump the remote windows realm keys into a keytab.
> what makes you think that this is a samba4 only matter?

Only that it is setup that way out of the box (and we don't yet have the
commands for manually pushing into a keytab). 

>  When Samba3 uses a
> keytab (typically /etc/krb5.keytab), I use the same mechanism to read
> packets in ethereal, are you planning to port the "net samdump keytab" to
> samba3 as well? Otherwise I'd like to do that.

I wasn't planning to port this to Samba3, so feel free.  The callback
function stuff I put into the Samba4 samdump code made this particularly
easy: Perhaps it's time to put a callback in the Samba3 code?

Andrew Bartlett

Andrew Bartlett                      
Authentication Developer, Samba Team 
Student Network Administrator, Hawker College
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