[cifs-protocol] [REG:111101553031054] RE: SystemLibraryDTC

Andrew Bartlett abartlet at samba.org
Tue Oct 18 15:03:13 MDT 2011

On Tue, 2011-10-18 at 19:57 +0000, Hongwei Sun wrote:
> Andrew,
>   I confirmed that the fixed session key "SystemLibraryDTC" is only
> used by NTLM when the client and server are both on the same machine.
> This type of loopback behavior doesn't affect  interoperability and
> thus is not covered by the protocol documentation.   Please let me
> know if you have more questions.

This is not the case, or else we would not know about it, and would not
need to deal with it for interoperability.  

Sadly you will need to dig deeper, as we discovered it the hard way (ie,
needing to discover the magic fixed key by DES brute force), I can
assure you it is used outside the server.

Andrew Bartlett

Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org

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