[Samba] named pipe, dcom and samba4
denis.cardon at tranquil-it-systems.fr
Thu May 2 02:47:09 MDT 2013
after a classicupgrade from a samba3 domain to a samba4, I have a weird
issue related to DCOM and named pipes.
The switch to samba4 went fine and everything works perfectly except one
old software that uses Windows named pipes and DCOM for client-server
When trying to access the DCOM server the software fails. The failure
can be easily reproduced with a simple vbscript call.
set vl = CreateObject("ManagerMax.clsmanager","magnus")
this call gives me the following windows error code : 80070721
There is a blog post
suggesting to create SPN for the DCOM services.
However the software maker helpdesk tells me that they have never heard
of service principals and says it should work out of the box.
I asked them to provide me with a setspn -l listing of the principal of
a working configuration, and indeed there is no SPN associated with the
So I guess the authentication probably goes through NTMLv2 in a MSAD
environement but seems to require kerberos auth in a Samba4 setup.
Is anyone gone through this kind of issue yet?
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